Information on EC 2.4.1.144 - beta-1,4-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase

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The expected taxonomic range for this enzyme is: Amniota

EC NUMBER
COMMENTARY
2.4.1.144
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RECOMMENDED NAME
GeneOntology No.
beta-1,4-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase
REACTION
REACTION DIAGRAM
COMMENTARY
ORGANISM
UNIPROT ACCESSION NO.
LITERATURE
UDP-N-acetyl-D-glucosamine + beta-D-mannosyl-R = UDP + 4-(N-acetyl-beta-D-glucosaminyl)-beta-D-mannosyl-R
show the reaction diagram
R represents the remainder of the N-linked oligosaccharide in the glycoprotein acceptor. The action of this enzyme probably prevents further attachment of N-acetylglucosamine residues to the growing carbohydrate chain.
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UDP-N-acetyl-D-glucosamine + beta-D-mannosyl-R = UDP + 4-(N-acetyl-beta-D-glucosaminyl)-beta-D-mannosyl-R
show the reaction diagram
sequential, random or partially random mechanism
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REACTION TYPE
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
hexosyl group transfer
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PATHWAY
KEGG Link
MetaCyc Link
Metabolic pathways
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N-Glycan biosynthesis
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SYSTEMATIC NAME
IUBMB Comments
UDP-N-acetyl-D-glucosamine:beta-D-mannosyl-glycoprotein 4-beta-N-acetyl-D-glucosaminyltransferase
R represents the remainder of the N-linked oligosaccharide in the glycoprotein acceptor (click here for diagram). The action of this enzyme probably prevents further attachment of N-acetylglucosamine residues to the growing carbohydrate chain.
SYNONYMS
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
(GnT)-III
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acetylglucosaminyltransferase, uridine diphosphoacetylglucosamine-glycopeptide beta4-, III
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beta(1,4)-N-acetylglucosaminyltransferase III
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beta-1,4-mannosyl-glycoprotein beta-1,4-N-acetylglucosaminyltransferase
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beta-1,4-N-acetylglucosaminyltransferase III
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beta-D-mannoside beta-1,4-N-acetylglucosaminyltransferase
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beta1,4-N-acetylglucosaminyltransferase III
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beta1,4-N-acetylglucosaminyltransferase III
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beta1,4-N-acetylglucosaminyltransferase III
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beta1,4-N-acetylglucosaminyltransferase III
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beta1,4-N-acetylglucosaminyltransferase III
Q02527
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GlcNAc-transferase-III
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GlcNAcTase-III
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MGAT3
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MGAT3
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gene name
N-acetyl-glucosaminyltransferase III
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N-acetylglucosaminyltransferase III
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N-acetylglucosaminyltransferase III
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N-acetylglucosaminyltransferase-III
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N-glycosyl-oligosaccharide-glycoprotein N-acetylglucosaminyltransferase III
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uridine diphosphate (UDP)-N-acetylglucosamin/beta-D-mannoside beta-1,4-N-acetylglucosaminyltransferase III
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uridine diphosphoacetylglucosamine-glycopeptide beta4-acetylglucosaminyltransferase III
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CAS REGISTRY NUMBER
COMMENTARY
83744-93-8
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ORGANISM
COMMENTARY
LITERATURE
SEQUENCE CODE
SEQUENCE DB
SOURCE
hen, White Leghorn
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Manually annotated by BRENDA team
expression in human hepatoma cells
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Manually annotated by BRENDA team
expression in mouse aorta endothelial cells
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Manually annotated by BRENDA team
patients with chronic hepatitis and liver cirrhosis
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Manually annotated by BRENDA team
patients with extrahepatic bile duct carcinoma or benign biliary duct diseases
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Manually annotated by BRENDA team
single copy gene, no isoforms
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Manually annotated by BRENDA team
forming normal prion protein PrPC and pathogenic prion protein PrPSc
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Manually annotated by BRENDA team
no activity in Mus musculus
lung melanoma cell line B16-hm
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Manually annotated by BRENDA team
enzyme transfected to RC12 cells, a pheochromocytoma cell line
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Manually annotated by BRENDA team
male Donryu
SwissProt
Manually annotated by BRENDA team
GENERAL INFORMATION
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
malfunction
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knockdown of GnT-III by siRNA causes no alteration in expression levels of E-cadherin mRNA and protein, but induces alterations on E-cadherin cellular localization in MCF-7/AZ cells. GnT-III knockdown cells reveal a membrane de-localization of E-cadherin leading to its cytoplasmic accumulation and cause modifications of E-cadherin N-glycans catalyzed by GnT-III and GnT-V
metabolism
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N-acetylglucosaminyltransferase-III-mediated glycosylation, specifically on E-cadherin, is a major component of the Epithelial-Mesenchymal-Transition /Mesenchymal-Epithelial-Transition mechanism signature
physiological function
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overexpression of GnT-III downregulates alpha5beta1 integrin-mediated cell spreading and migration, and the phosphorylation of the focal adhesion kinase. Overexpression of GnT-III slows E-cadherin turnover, resulting in increased E-cadherin expression on the surface of B16 melanoma cells. GnT-III inhibits GnT-V-induced cell migration. Overexpression of GnT-III inhibits cancer metastasis by at least two mechanisms: an enhancement in cell-cell adhesion and a downregulation of cell-ECM adhesion
physiological function
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integrins are modified by GnT-III, which inhibits cell migration and cancer metastasis. Overexpression of GnT-III results in an inhibition of alpha5beta1 integrin-mediated cell spreading and migration, and the phosphorylation of the focal adhesion kinase. Overexpression of GnT-III in highly metastatic melanoma cells reduces beta1, six branching in cell-surface N-glycans and increases bisected N-glycans. GnT-III is an antagonistic of GnT-V, contributing to the suppression of cancer metastasis, overexpression of GnT-III inhibits GnT-V-induced cell migration. Overexpression of GnT-III slows E-cadherin turnover, resulting in increased E-cadherin expression on the surface of B16 melanoma cells
physiological function
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metastasis suppressor
physiological function
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all subunits of laminin-332 are modified by GnT-III, introduction of GnT-III inhibits GnT-V products
physiological function
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introduction of GnT-III suppresses additional processing and branching formation of N-glycans catalyzed by other endogenous glycosyltransferases, such as GnT-V and GnT-IV. Cell adhesion on fibronectin is down-regulated in GnT-III transfectants compared with mock and GnT-V transfectants. Overexpression of GnT-III significantly inhibits cell migration on fibronectin. GnT-III significantly down-regulates cell spreading on fibronectin in wild-type transfectants, whereas the deletion of site-4 abolishes the suppression of cell spread induced by GnT-III in D-4 transfectants
physiological function
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levels of fucosylation (79%, median value 80%, q1, 78%, q3, 82%) and xylosylation (94, median value 94%, q1, 93%, q3, 95%) are not significantly reduced in cells expressing GnTIII under the control of the CaMV 35S promoter compared to the levels observed in wild-type cells. Expression of GnTIII under the control of the UAS123mas promoter reduces fucosylation, but not xylosylation
physiological function
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GnT-III is an antagonistic of GnT-V, thereby contributing to the suppression of cancer metastasis. Modification of the alpha3 subunit by GnT-III supersedes modification by GnT-V. Overexpression of GnT-III in highly metastatic melanoma cells reduces beta1,6 GlcNAc branching in cell-surface N-glycans and increases bisected N-glycans, which results in an enhancement of cell-cell adhesion due to prolonged turnover of E-cadherin on the cell surface. Overexpression of GnT-III significantly reduces the ability of epithelial growth factor receptor to bind to its receptor, reduces epithelial growth factor receptor autophosphorylation, and subsequently blocks epithelial growth factor receptor-mediated Erk phosphorylation in U373 MG glioma cells and in PC12 cells. GnT-III also inhibits the formation of the alpha-Gal epitope, which is a major xenotransplantation antigen that is problematic in swine-to-human organ transplantation. GnT-III affects antibody-dependent cellular cytotoxicity activity. Transgenic mice, in which GnT-III is expressed specifically in the liver by use of a serum amyloid P component gene promoter, exhibits fatty liver. Ectopic expression of GnT-III disrupts the function of apolipoprotein B, resulting in abnormal lipid accumulation
physiological function
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GnT-III-deficient mice are viable and reproduce normally, thus GnT-III and the bisected N-glycans may not be essential for normal development
physiological function
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the enzyme induces a stabilizing effect on E-cadherin at the cell membrane by inducing a delay in the turnover rate of the protein, contributing for the formation of stable and functional adherens-junctions, and further preventing clathrin-dependent E-cadherin endocytosis. The enzyme plays a role on E-cadherin-mediated tumor suppression
physiological function
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the enzyme plays an important role in the suppression of cancer metastasis. The enzyme influences epithelial-to-mesenchymal transition-like changes through not only prolongation of E-cadherin turnover but also suppression of beta-catenin-p-Smad complex formation. The enzyme plays important roles in transforming growth factor-beta-induced epithelial-to-mesenchymal transition-like changes. The enzyme does not significantly affect the expression of E-cadherin mRNA
SUBSTRATE
PRODUCT                      
REACTION DIAGRAM
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
(Substrate)
LITERATURE
(Substrate)
COMMENTARY
(Product)
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(beta-D-glucosyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP-D-glucose + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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GnT-III catalyzes the removal of the bisecting GlcNAc from the bisected oligosaccharide, producing the corresponding nonbisected sugar chain
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r
UDP-D-glucose + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(beta-D-glucosyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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?
UDP-D-glucose + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(beta-D-glucosyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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pyridylaminated biantennary sugar chain, 0.2% activity compared to donor substrate UDP-N-acetyl-D-glucosamine
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?
UDP-D-glucose + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(beta-D-glucosyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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0.2% activity compared to donor substrate UDP-N-acetyl-D-glucosamine
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?
UDP-D-glucose + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(beta-D-glucosyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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?
UDP-N-acetyl-D-galactosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-galactosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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pyridylaminated biantennary sugar chain, 0.1% activity compared to donor substrate UDP-N-acetyl-D-glucosamine
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?
UDP-N-acetyl-D-galactosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-galactosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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0.1% activity compared to donor substrate UDP-N-acetyl-D-glucosamine
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?
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-N-acetyl-D-glucosaminyl-2-aminopyridine
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-N-acetyl-D-glucosaminyl-2-aminopyridine
show the reaction diagram
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ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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?
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
?
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
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UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
?
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
?
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
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incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
?
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
-
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
-
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
-
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
Q02527
-
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
?
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
Q02527
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incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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substrate specificity
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
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UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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substrate specificity
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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substrate specificity
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
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UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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substrate specificity
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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substrate specificity
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
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UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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substrate specificity
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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pyridylaminated biantennary sugar chain
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ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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pyridylaminated biantennary sugar chain
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UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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pyridylaminated biantennary sugar chain
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UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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structural requirements, stereochemistry
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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beta1,2-GlcNAc linked to alpha1,3-Man is required for activity, beta1,2-GlcNAc linked to alpha1,6-Man is not required
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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any agalacto form of the bi-, tri- and tetraantennary sugar chains is capable of serving as ana cceptor substrate
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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beta1,4-galactosylation of N-acetylglucosaminyl-1,2-alpha-mannosyl-1,3-beta-mannosyl moiety prevents transferase III action
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
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UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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beta1,4-galactosylation of N-acetylglucosaminyl-1,2-alpha-mannosyl-1,3-beta-mannosyl moiety prevents transferase III action
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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beta1,4-galactosylation of N-acetylglucosaminyl-1,2-alpha-mannosyl-1,3-beta-mannosyl moiety prevents transferase III action
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
?
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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beta1,4-galactosylation of N-acetylglucosaminyl-1,2-alpha-mannosyl-1,3-beta-mannosyl moiety prevents transferase III action
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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R represents the remainder of the N-oligosaccharide core, (+/-)-fucose, favourite substrate
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
?
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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R represents the remainder of the N-oligosaccharide core, (+/-)-fucose, favourite substrate
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
?
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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R represents the remainder of the N-oligosaccharide core, (+/-)-fucose, favourite substrate
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
?
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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R represents the remainder of the N-oligosaccharide core, (+/-)-fucose, favourite substrate
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
?
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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R represents the remainder of the N-oligosaccharide core, (+/-)-fucose, favourite substrate
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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R represents the remainder of the N-oligosaccharide core, (+/-)-fucose, favourite substrate
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
?
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
Q02527
R represents the remainder of the N-oligosaccharide core, (+/-)-fucose, favourite substrate
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
?
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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R represents the remainder of the N-oligosaccharide core, (+/-)-fucose, favourite substrate
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
ir
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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absolute requirement for the conserved residues Asp321 and Asp323 as part of a D-X-D motif
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine
?
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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key regulatory role in N-glycan biosynthesis, responsible for cancer-associated alterations
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UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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important role in carcinogenesis and cancer metastasis
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UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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key enzyme in the biosynthesis of N-glycans since it inhibits the other involved glycosyltransferases by adding the GlcNAc-residue in an beta-1,4- linkage
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UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
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key enzyme in the biosynthesis of N-glycans since it inhibits the other involved glycosyltransferases by adding the GlcNAc-residue in an beta-1,4- linkage
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UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
Q02527
key enzyme in the biosynthesis of N-glycans since it inhibits the other involved glycosyltransferases by adding the GlcNAc-residue in an beta-1,4- linkage
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
key enzyme in the biosynthesis of N-glycans since it inhibits the other involved glycosyltransferases by adding the GlcNAc-residue in an beta-1,4- linkage
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
enzyme plays an important role in the progression of preneoplastic foci to primary hepatoma
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
R represents the remainder of the N-oligosaccharide core (+/-fucose), essential for biosynthesis of complex N-linked oligosaccharides
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
R represents the remainder of the N-oligosaccharide core (+/-fucose), essential for biosynthesis of complex N-linked oligosaccharides
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
R represents the remainder of the N-oligosaccharide core (+/-fucose), essential for biosynthesis of complex N-linked oligosaccharides
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
R represents the remainder of the N-oligosaccharide core (+/-fucose), essential for biosynthesis of complex N-linked oligosaccharides
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
R represents the remainder of the N-oligosaccharide core (+/-fucose), essential for biosynthesis of complex N-linked oligosaccharides
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
Q02527
R represents the remainder of the N-oligosaccharide core (+/-fucose), essential for biosynthesis of complex N-linked oligosaccharides
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
R represents the remainder of the N-oligosaccharide core (+/-fucose), essential for biosynthesis of complex N-linked oligosaccharides
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
numerous target proteins, multifacial glycosyltransferase
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
Q02527
numerous target proteins, multifacial glycosyltransferase
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
numerous target proteins, multifacial glycosyltransferase
-
-
-
UDP-N-acetyl-D-glucosamine + beta-D-mannosyl-R
UDP + 4-(N-acetyl-beta-D-glucosaminyl)-beta-D-mannosyl-R
show the reaction diagram
-
GnT-III catalyzes the formation of a bisecting GlcNAc structure in N-glycans, resulting in the suppression of metastasis. The priority of GnT-III for the modification of the integrin alpha3 subunit may be an explanation for why GnT-III inhibits GnT-V-induced cell migration. TGnT-III and GnT-V can competitively modify the same target glycoprotein and furthermore positively or negatively regulate its biological functions
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-
?
UDP-N-acetyl-D-glucosamine + E-cadherin
UDP + E-cadherin with bisecting N-acetyl-D-glucosamine
show the reaction diagram
-
recombinant enzyme expressed in murine lung melanoma cells
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UDP-N-acetyl-D-glucosamine + gamma-glutamyltranspeptidase
UDP + gamma-glutamyltranspeptidase with bisecting N-acetyl-D-glucosamine
show the reaction diagram
Q02527
-
-
?
UDP-N-acetyl-D-glucosamine + GlcNAc-beta-1,2-Man-alpha-1,6-(GlcNAc-beta-1,2-Man-alpha-1,3)-Man-beta-1,4-GlcNAc-beta-1,4-(Fuc-alpha-1,6)-GlcNAc-Asn
UDP + GlcNAc-beta-1,2-Man-alpha-1,6-(GlcNAc-beta-1,2-Man-alpha-1,3)(GlcNAc-beta-1,4)-Man-beta-1,4-GlcNAc-beta-1,4-(Fuc-alpha-1,6)-GlcNAc-Asn
show the reaction diagram
-
-
incorporates a N-acetylglucosamine residue in beta-1,4-linkage to beta-linked mannosyl, i.e. bisecting N-acetylglucosamine, both terminal beta-1,2-linked N-acetylglucosamine residues required for maximum activity, removal of one or both of them reduces activity by 85 or 93%, respectively
ir
UDP-N-acetyl-D-glucosamine + GlcNAc-beta-1,2-Man-alpha-1,6-(GlcNAc-beta-1,2-Man-alpha-1,3)-Man-beta-1,4-GlcNAc-beta-1,4-GlcNAc-2-aminopyridine
UDP + GlcNAc-beta-1,2-Man-alpha-1,6-(GlcNAc-beta-1,2-Man-alpha-1,3)(GlcNAc-beta-1,4)-Man-beta-1,4-GlcNAc-beta-1,4-GlcNAc-2-aminopyridine
show the reaction diagram
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + GlcNAcbeta(1->2)Manalpha(1->6)(GlcNAcbeta(1->2)Manbeta(1->3)Manbeta(1->4)GlcNAcbeta(1->4)GlcNAc)-NH(CH2)4NH(2-pyridyl)
?
show the reaction diagram
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + GlcNAcbeta(1->2)Manalpha(1->6)(GlcNAcbeta(1->2)Manbeta(1->3)Manbeta(1->4)GlcNAcbeta(1->4)GlcNAc)-NH(CH2)4NH(2-pyridyl)
?
show the reaction diagram
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + transferrin
UDP + transferrin with bisecting N-acetyl-D-glucosamine
show the reaction diagram
-
-
-
?
additional information
?
-
Q02527
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-
additional information
?
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-
UDP-galactose is no substrate
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additional information
?
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-
ADP-, CDP-, GDP-, and TDP-glucose are no donor substrates
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-
additional information
?
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-
specificity towards the sugar moiety of the donor substrate appears to be critically determined during the catalytic process but not during binding to the enzyme in ground state
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-
additional information
?
-
-
the biantennary structure of a core mannose is twisted in presence of bisecting GlcNAc, probably responsible for the substrate inaccessibility to N-acetylglucosamine transferase V to form the beta-1,6 structure
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-
additional information
?
-
-
in brain cells with down-regulated enzyme activity, normal prion proteins PrPC get conversed to pathogenic prion protein PrPSc due to a lower amount of glycans with bisecting N-acetylglucosamine residues
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-
additional information
?
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biosynthetic pathway of the core structures of Asn-linked sugar chains, overview
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-
additional information
?
-
-
key enzyme that inhibits the extension of N-glycans by introducing a bisecting N-acetylglucosamine residue, modification of N-glycans by the enzyme affects a number of intracellular signalling pathways
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-
additional information
?
-
-
beta1,4-N-acetylglucosaminyltransferase III potentiates beta1 integrin-mediated neuritogenesis induced by serum deprivation in Neuro2a cells
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-
additional information
?
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cell-cell interaction-dependent regulation of N-acetylglucosaminyltransferase III and the bisected N-glycans in GE11 epithelial cells
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-
additional information
?
-
-
N-acetylglucosaminyltransferase III expression is regulated by cell-cell adhesion via the E-cadherin-catenin-actin complex
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-
additional information
?
-
-
expression of GnTIII leads to a high proportion of N-glycans of the complex type, modified with the bisecting GlcNAc (median value 37%, q1, 33%, q3, 39%) and a strong reduction of paucimannosidic type N-glycans (median value 2%, q1, 1%, q3.2%) that are abundant in secreted proteins of tobacco BY-2 cells. Native GnTIII expression, the coexpression of Arabidopsis thaliana ManII leads to an increase in the proportion of complex bisected N-glycan structures, whereas the expression of native human ManII does not significantly increase these structures. In the case of chimeric GnTIIIA.th. and chimeric ManIIA.th. expression, reduction in hybrid bisected structures. No viable cultures expressing GnTIIIA.th. and A. thaliana ManII. Plant-specific core fucosylation and xylosylation can be greatly reduced, with up to 59% of N-glycans on endogenous secreted protein lacking the plant-specific modifications
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additional information
?
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GnT-III selectively modifies N-glycosylation site-4 on the integrin alpha5 subunit (S-3,4,5), which down-regulates its biological functions
-
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-
additional information
?
-
-
N-glycosylation of laminin-332, GnT-III down-regulates activities of laminin-332
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additional information
?
-
-
the enzyme catalyzes the transfer of N-acetylglucosamine in a beta1,4 linkage to mannose on N-glycans forming a bisecting N-acetylglucosamine structure
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additional information
?
-
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the enzyme introduces a N-acetylglucosamine in a beta1,4-linkage to the mannose residue located at the base of the trimannosyl core (bisecting N-acetylglucosamine) in N-glycans
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NATURAL SUBSTRATES
NATURAL PRODUCTS
REACTION DIAGRAM
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
(Substrate)
LITERATURE
(Substrate)
COMMENTARY
(Product)
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
-
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
key regulatory role in N-glycan biosynthesis, responsible for cancer-associated alterations
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
important role in carcinogenesis and cancer metastasis
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
key enzyme in the biosynthesis of N-glycans since it inhibits the other involved glycosyltransferases by adding the GlcNAc-residue in an beta-1,4- linkage
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
key enzyme in the biosynthesis of N-glycans since it inhibits the other involved glycosyltransferases by adding the GlcNAc-residue in an beta-1,4- linkage
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
Q02527
key enzyme in the biosynthesis of N-glycans since it inhibits the other involved glycosyltransferases by adding the GlcNAc-residue in an beta-1,4- linkage
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
key enzyme in the biosynthesis of N-glycans since it inhibits the other involved glycosyltransferases by adding the GlcNAc-residue in an beta-1,4- linkage
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
enzyme plays an important role in the progression of preneoplastic foci to primary hepatoma
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
R represents the remainder of the N-oligosaccharide core (+/-fucose), essential for biosynthesis of complex N-linked oligosaccharides
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
R represents the remainder of the N-oligosaccharide core (+/-fucose), essential for biosynthesis of complex N-linked oligosaccharides
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
R represents the remainder of the N-oligosaccharide core (+/-fucose), essential for biosynthesis of complex N-linked oligosaccharides
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
R represents the remainder of the N-oligosaccharide core (+/-fucose), essential for biosynthesis of complex N-linked oligosaccharides
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
R represents the remainder of the N-oligosaccharide core (+/-fucose), essential for biosynthesis of complex N-linked oligosaccharides
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
Q02527
R represents the remainder of the N-oligosaccharide core (+/-fucose), essential for biosynthesis of complex N-linked oligosaccharides
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
R represents the remainder of the N-oligosaccharide core (+/-fucose), essential for biosynthesis of complex N-linked oligosaccharides
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
numerous target proteins, multifacial glycosyltransferase
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
Q02527
numerous target proteins, multifacial glycosyltransferase
-
-
-
UDP-N-acetyl-D-glucosamine + (N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
UDP + N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-(N-acetyl-beta-D-glucosaminyl-1,4)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
show the reaction diagram
-
numerous target proteins, multifacial glycosyltransferase
-
-
-
UDP-N-acetyl-D-glucosamine + beta-D-mannosyl-R
UDP + 4-(N-acetyl-beta-D-glucosaminyl)-beta-D-mannosyl-R
show the reaction diagram
-
GnT-III catalyzes the formation of a bisecting GlcNAc structure in N-glycans, resulting in the suppression of metastasis. The priority of GnT-III for the modification of the integrin alpha3 subunit may be an explanation for why GnT-III inhibits GnT-V-induced cell migration. TGnT-III and GnT-V can competitively modify the same target glycoprotein and furthermore positively or negatively regulate its biological functions
-
-
?
UDP-N-acetyl-D-glucosamine + E-cadherin
UDP + E-cadherin with bisecting N-acetyl-D-glucosamine
show the reaction diagram
-
recombinant enzyme expressed in murine lung melanoma cells
-
-
-
additional information
?
-
Q02527
-
-
-
-
additional information
?
-
-
the biantennary structure of a core mannose is twisted in presence of bisecting GlcNAc, probably responsible for the substrate inaccessibility to N-acetylglucosamine transferase V to form the beta-1,6 structure
-
-
-
additional information
?
-
-
in brain cells with down-regulated enzyme activity, normal prion proteins PrPC get conversed to pathogenic prion protein PrPSc due to a lower amount of glycans with bisecting N-acetylglucosamine residues
-
-
-
additional information
?
-
-
biosynthetic pathway of the core structures of Asn-linked sugar chains, overview
-
-
-
additional information
?
-
-
key enzyme that inhibits the extension of N-glycans by introducing a bisecting N-acetylglucosamine residue, modification of N-glycans by the enzyme affects a number of intracellular signalling pathways
-
-
-
additional information
?
-
-
beta1,4-N-acetylglucosaminyltransferase III potentiates beta1 integrin-mediated neuritogenesis induced by serum deprivation in Neuro2a cells
-
-
-
additional information
?
-
-
cell-cell interaction-dependent regulation of N-acetylglucosaminyltransferase III and the bisected N-glycans in GE11 epithelial cells
-
-
-
additional information
?
-
-
N-acetylglucosaminyltransferase III expression is regulated by cell-cell adhesion via the E-cadherin-catenin-actin complex
-
-
-
METALS and IONS
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
Mn2+
-
broad optimum at 12 mM
Mn2+
-
broad optimum at 12 mM
Mn2+
-
HepG2 cells: maximal at 12 mM, Hep3B cells: maximal at 15 mM
Mn2+
-
Asp321 and Asp323 are absolutely required for the coordination of Mn2+ during enzyme reaction
INHIBITORS
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
IMAGE
ADP-glucose
-
competitive against UDP-N-acetyl-D-glucosamine
alpha-N-acetyl-D-glucosamine-1-phosphate
-
-
castanospermine
-
activity is not affected, but the enzyme is not localized in the Golgi apparatus
CDP-glucose
-
competitive against UDP-N-acetyl-D-glucosamine
GDP-glucose
-
competitive against UDP-N-acetyl-D-glucosamine
hepatitis B virus
-
selective suppression of enzyme activity on transcription level in transfected cells, e.g. cell line Hb611
-
N-acetyl-D-glucosamine
-
-
TDP-glucose
-
competitive against UDP-N-acetyl-D-glucosamine
Tunicamycin
-
completely abolishes the enzyme activity due to deglycosylation of the enzyme, not localized in the Golgi apparatus
inactive rat mutant D323A enzyme
-
acts as an inhibitor of endogenous enzyme activity when expressed in human Huh6 cells
-
additional information
-
transgenic expression of the enzyme in hepatitis B virus infected cells suppress the virus expression, cell line HB611
-
ACTIVATING COMPOUND
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
IMAGE
all-trans retinoic acid
-
activation
deoxymannojirimycin
-
increase in activity, HepG2 and Hep3B cells
Triton X-100
-
activation, about 8fold at 0.13-1.3% v/v
Triton X-100
Q02527
activation, about 8fold at 0.13-1.3% v/v
Tunicamycin
-
increase in activity, HepG2 and Hep3B cells
forskolin
-
induction of the enzyme in hepatoma cells
additional information
-
interferon-alpha-2a leads to an increase in enzyme activity in hepatitis B virus infected cells due to reduction of virus expression
-
additional information
-
not affected by cAMP
-
additional information
-
not affected by swainsonine
-
KM VALUE [mM]
KM VALUE [mM] Maximum
SUBSTRATE
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
IMAGE
0.021
-
pyridylaminated acceptor substrate
-
recombinant enzyme; with UDP-GlcNAc as donor substrate
-
0.023
-
pyridylaminated acceptor substrate
-
recombinant enzyme; with UDP-Glc as donor substrate
-
0.024
-
pyridylaminated acceptor substrate
-
recombinant enzyme; with UDP-GalNAc as donor substrate
-
0.19
-
pyridylaminated acceptor substrate
-
-
-
1.1
-
pyridylaminated acceptor substrate
-
Hep3B cells
-
3.4
-
pyridylaminated acceptor substrate
-
HepG2 cells
-
1
-
UDP-D-glucose
-
recombinant enzyme
3.6
-
UDP-N-acetyl-D-galactosamine
-
recombinant enzyme
0.42
-
UDP-N-acetyl-D-glucosamine
-
recombinant enzyme
1.1
-
UDP-N-acetyl-D-glucosamine
-
-
3.1
-
UDP-N-acetyl-D-glucosamine
-
+ pyridylaminated acceptor substrate
4.7
-
UDP-N-acetyl-D-glucosamine
-
Hep3B cells
6.8
-
UDP-N-acetyl-D-glucosamine
-
HepG2 cells
0.23
-
(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,3)-(N-acetyl-beta-D-glucosaminyl-1,2-alpha-D-mannosyl-1,6)-beta-D-mannosyl-1,4-N-acetyl-beta-D-glucosaminyl-R
-
-
additional information
-
additional information
-
solid-phase enzyme-linked immunosorbent sandwich assay for enzyme activity
-
Ki VALUE [mM]
Ki VALUE [mM] Maximum
INHIBITOR
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
IMAGE
0.75
-
ADP-glucose
-
recombinant enzyme
3.9
-
CDP-glucose
-
recombinant enzyme
1
-
GDP-glucose
-
recombinant enzyme
SPECIFIC ACTIVITY [µmol/min/mg]
SPECIFIC ACTIVITY MAXIMUM
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
2.2e-08
-
-
hepatoma cells
1e-07
-
-
HB611 cells
1.3e-07
-
-
normal liver
4e-07
-
-
HB611 cells treated with interferon-alpha-2a
9e-07
-
Q02527
recombinant enzyme in HeLa cells
2.1e-06
-
-
Huh6 cells treated with interferon-alpha-2a
2.3e-06
-
-
Huh6 cells
2.5e-06
-
-
hepatoma cell line 7721
4e-06
-
-
about, hepatoma cell line 7721, all-trans retinoic acid treated
9.6e-06
-
-
fetal primary hepatocytes
1.2e-05
-
-
purified enzyme
1.24e-05
-
-
hepatic carcinoma cells
1.7e-05
-
-
wild-type and mutant D329A
1.8e-05
-
-
HepG2 cells
2.4e-05
-
-
Hep3B cells
6e-05
-
Q02527
recombinant enzyme in COS-1 cells
8.3e-05
-
-
-
0.02
-
-
purified recombinant enzyme
5.52
-
Q02527
purified enzyme
additional information
-
-
activity and expression level in various leukemic cells; transcript amount is not correlated to enzyme activity
pH OPTIMUM
pH MAXIMUM
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
6
-
-
HepG2 cells
6.3
-
-
assay at
6.3
-
-
assay at
6.5
-
-
Hep3B cells
TEMPERATURE OPTIMUM
TEMPERATURE OPTIMUM MAXIMUM
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
37
-
-
assay at
37
-
-
assay at
37
-
-
assay at
40
-
-
HepG2 cells
43
-
-
Hep3B cells
SOURCE TISSUE
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
SOURCE
-
cells forming normal prion protein PrPC with normal enzyme activity, and pathogenic prion protein PrPSc with reduced enzyme activity
Manually annotated by BRENDA team
-
LEC10 ovary cell line; ricin resistant mutant
Manually annotated by BRENDA team
-
chronic myelogenous leukemia granulocyte cell lines, e.g. clone KU812 and subclone KU812F
Manually annotated by BRENDA team
-
DLD-1/DELTAalpha cells lacking alpha-catenin expression
Manually annotated by BRENDA team
-
hepatoblastoma cell line, derived from Huh6 by transfection of 3 copies of hepatitis B virus genome, decreased transcription level
Manually annotated by BRENDA team
-
hepatoma cell line
Manually annotated by BRENDA team
-
hepatoma cell line
Manually annotated by BRENDA team
-
different expression level in fetal and adult hepatocytes; primary; very low amount
Manually annotated by BRENDA team
-
about 100fold increased activity compared to normal liver tissue
Manually annotated by BRENDA team
-
primary, about 100fold increased activity compared to normal liver tissue
Manually annotated by BRENDA team
-
7721 cells, activity during cell-cycle
Manually annotated by BRENDA team
-
hepatoblastoma cell line
Manually annotated by BRENDA team
-
from patients with chronic lymphocytic leukemia CLL or acute lymphoblastic leukemia ALL
Manually annotated by BRENDA team
-
preneoplastic hepatic nodules
Manually annotated by BRENDA team
-
high levels in fetal liver, but not in adult liver; very low amount
Manually annotated by BRENDA team
-
very low amount
Manually annotated by BRENDA team
Q02527
very low amount
Manually annotated by BRENDA team
-
multiple myeloma
Manually annotated by BRENDA team
additional information
-
tissue distribution
Manually annotated by BRENDA team
additional information
-
multiple promotors allow tissue-specific expression
Manually annotated by BRENDA team
additional information
-
-
Manually annotated by BRENDA team
additional information
-
three choriocarcinoma cell lines
Manually annotated by BRENDA team
additional information
-
MCF-7/AZ cell
Manually annotated by BRENDA team
LOCALIZATION
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
GeneOntology No.
LITERATURE
SOURCE
-
minor fraction
Manually annotated by BRENDA team
-
tunicamycin-treated and castanospermine-treated enzyme, not native enzyme
Manually annotated by BRENDA team
-
deglycosylated mutants are not localized in the Golgi apparatus; wild-type
Manually annotated by BRENDA team
-
deglycosylated mutants are not localized in the Golgi apparatus
Manually annotated by BRENDA team
-
functional localization of enzyme is regulated by caveolin-1
Manually annotated by BRENDA team
MOLECULAR WEIGHT
MOLECULAR WEIGHT MAXIMUM
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
110000
-
-
about, PAGE
additional information
-
Q02527
amino acid and DNA sequence; type II transmembrane protein
additional information
-
-
amino acid and DNA sequence; type II transmembrane protein
SUBUNITS
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
?
Q02527
x * 62000 + x * 52000, SDS-PAGE
?
-
x * 68100, wild-type enzyme, SDS-PAGE
?
-
x * 60000 + x * 50000, SDS-PAGE
?
-
x * 52000, two major bands migrate at 62000 and 52000 Da, SDS-PAGE; x * 62000, two major bands migrate at 62000 and 52000 Da, SDS-PAGE
dimer
-
1 * 63000 + 1 * 53000, SDS-PAGE
POSTTRANSLATIONAL MODIFICATION
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
glycoprotein
Q02527
enzyme binds to concanavalin A; enzyme contains 3 putative N-glycosylation sites
glycoprotein
-
3 N-glycosylation sites: Asn243, Asn261, Asn399, essential for activity, tunicamycin-treated enzyme, which is not glycosylated, shows no activity; requires core glycosylation but not glucose trimming
glycoprotein
-
3 N-glycosylation sites: Asn243, Asn261, Asn399, essential for activity, tunicamycin-treated enzyme, which is not glycosylated, shows no activity
STORAGE STABILITY
ORGANISM
UNIPROT ACCESSION NO.
LITERATURE
-20°C, chicken oviduct microsomal preparation, several months in detergent-free buffer
-
Purification/COMMENTARY
ORGANISM
UNIPROT ACCESSION NO.
LITERATURE
recombinant mutant enzyme from E. coli; wild-type, diethyl(2-hydroxypropyl)aminoethyl-Sepharose and immunoaffinity chromatography
-
; primary structure
-
by nickel-chelating affinity chromatography
-
primary structure
Q02527
recombinant His-tagged protein from medium of Spodoptera frugiperda Sf 21 cell culture
-
Cloned/COMMENTARY
ORGANISM
UNIPROT ACCESSION NO.
LITERATURE
amplified for cloning into pENTR-D-Topo vector, cloned gene inserted into the virus expression vector, pBABE-puro. GnT-III and GnT-V constructs transfected into Phoenix-Ampho cells
-
cloning of cDNA by RT-PCR
-
expressed in transgenic mice
-
expression in erythroleukemia cell line K562, leading to increased resistance to lysis by natural killer cells and enhanced spleen colonization ability; overexpression in murine lung melanoma cell line B16-hm, leading to suppression of the formation of beta-1,6-tri- and tetraantennary N-linked oligosaccharides by inhibiting the responsible enzymes, e.g. N-acetylglucosamine transferase V, EC 2.4.1.155, decrease of the metastatic potential of B16-hm melanoma in vivo, changed phenotype
-
expression of mutant aglycosyl-enzyme, lacking the first 23 amino acid residues, in Escherichia coli
-
GnT-III overexpressed in MKN45 cells
-
heterozygous alpha 1,3-galactosyltransferase gene knockout pigs produced with transgenic pig fetal cells expressing both human decay-accelerating factor and N-acetylglucosaminyltransferase III
-
highly metastatic melanoma B16 cells transfected with GnT-III and then injected into syngeneic mice via the tail vein
-
introduction of human N-acetylglucosaminyltransferase gene into tobacco plants leads to highly efficient synthesis of bisected N-glycans. The majority of N-glycans of an antibody produced in a plant expressing GnT-III is also bisected. This might improve the efficacy of therapeutic antibodies produced in this type of transgenic plant; introduction of human N-acetylglucosaminyltransferase (GnT)-III gene into Nicotiana tabacum leads to highly efficient synthesis of bisected N-glycans
-
overexpression in HeLa cells, leading to suppression of H2O2-induced activation of PKCdelta-JNK1 signalling pathway resulting in inhibition of apoptosis
-
overexpression in murine lung melanoma cell line B16-hm, leading to suppression of the formation of beta-1,6-tri- and tetraantennary N-linked oligosaccharides by inhibiting the responsible enzymes, e.g. N-acetylglucosamine transferase V, EC 2.4.1.155, decrease of the metastatic potential of B16-hm melanoma in vivo, changed phenotype
-
GnT-III transfection into highly pigmented, highly metastatic macrophage-melanoma fusion hybrids results in the suppression of both melanogenesis and motility. The effects of GnT-III appear to occur through inhibition of GnT-V action
-
; construction of transgenic mice, disruption of certain functions of apolipoprotein B leading to generation of a aftty liver; expression of soluble His-tagged protein in Spodoptera frugiperda Sf 21 insect cells via baculovirus infection, secretion into the medium; expression of wild-type and mutants in COS-1 cells
-
cloning from genetic library, DNA sequence determination, functional overexpression in COS-1 or HeLa-cells, transient transfection
Q02527
construction of genes for expression of native rat GnTIII, human ManII, Arabidopsis thaliana ManII and for the expression of the catalytic domains of rat GnTIII and human ManII fused to the N-terminal region of Arabidopsis thaliana ManII. Binary plasmids for high-level expression of rat GnTIII (pAX67), chimeric rat GnTIIIA.th. (replaced native localization domain with the cytoplasmic tail, transmembrane, and stem region of Arabidopsis thaliana mannosidase II) (pAX70), co-expression of rat GnTIII together with human ManII (pAX73) or Arabidopsis thaliana ManII (pAX100), co-expression of GnTIIIA.th. together with ManIIA.th. (pAX74), and co-expression of GnTIIIA.th. and Arabidopsis thaliana ManII (pAX101). Expression of the transgenes is driven by a chimeric promoter assembled from regulatory elements from mannopine and octopine synthase genes. Expression cassettes comprising the CaMV 35S promoter, GnTIII or ManII and the nos pA, being pSK103 (ManII), pSK124 (ManII-Arabidopsis thaliana), pAX63 (GnTIII-Arabidopsis thaliana) and pAX68 (GnTIII) serve as starting point for further expression constructs. The cassette comprising the CaMV 35 promoter, plant relocalized GnTIII and polyadenylation signal is excised from pAX68 using SbfI, EcoRI and inserted into pAX36 generating pAX90. The construct comprising the rat GnTIII obtained by replacing the XbaI, AflII fragment from pAX90 with the fragment isolated from pAX63, generating pAX91. Mutated fragment from pCLF40 inserted into pAX69 using AvaI, StuI, generating pAX104. The binary expression plasmids for inactive GnTIII and GnTIIIA.th. under the control of the UAS123mas promoter generated by replacing the StuI, EcoRI fragment from pAX104 with that in pAX67 (generating pAX105) and pAX70 (generating pAX106), respectively. The mutated fragment from pCLF40 inserted into pAX91 using Eam1105I, StuI, generating the expression plasmid for inactive GnTIII under the control of the CaMV 35S promoter (pAX108). The exchange of the fragment containing the Arabidopsis thaliana Golgi localization domain from pAX90 in pAX108 using SbfI, StuI yields an expression plasmid for inactive GnTIIIA.th. under the control of the CaMV 35S promoter. Plasmids transferred into Agrobacterium tumefaciens LBA4404 for transformation into tobacco BY-2 cells
-
construction of transgenic mice, disruption of certain functions of apolipoprotein B leading to generation of a aftty liver; overexpression in rat pheochromocytoma cell line PC-12, glycoproteins contain elevated levels of bisecting GlcNAc, abolished cell differentiation
-
expressed in Spodoptera frugiperda Sf21 cells
-
expression of a catalytically inactive D232A mutant in human hepatoblastoma cell line Huh6, leading to suppression of the endogenous enzyme activity, but not to a significant decrease in the expression level of the endogenous enzyme; expression of wild-type and mutants in COS-1 cells
-
expression of soluble His-tagged protein in Spodoptera frugiperda Sf 21 insect cells via baculovirus infection, secretion into the medium
-
expression of wild-type and mutants in COS-1 cells
-
GnT-III stable expressing cell lines of Neuro-2a mouse neuroblastoma cells and B16 mouse melanoma cells are established. Overexpression of GnT-III up-regulates adenylyl cyclases activity in Neuro-2a mouse neuroblastoma cells and B16 mouse melanoma cells
-
rat GnTIII is expressed either with its native localization domain (GnTIII) or with the cytoplasmic tail, transmembrane domain and stem region (CTS) of Arabidopsis thaliana mannosidase II. N-Glycans of plants expressing rat GnTIII contain three major glycan structures of complex bisected, complex, or hybrid bisected type, accounting for 70%-85% of the total N-glycans. Expression of rat beta(1,4)-N-acetylglucosaminyltransferase III in Nicotiana tabacum remodels the plant-specific N-glycosylation
-
Sf21 cells infected with recombinant baculovirus encoding GnT-III
-
EXPRESSION
ORGANISM
UNIPROT ACCESSION NO.
LITERATURE
in MDA-MB231 cells, an E-cadherin-deficient cell line, GnT-III expression is undetectable
-
GnT-III knockdown in MCF-7/AZ cells through siRNA; knockdown of GnT-III, de-localization of E-cadherin and cytoplasmic accumulation, modification of N-glycosylation in E-cadherin
-
downregulation of GnT-III expression in MDA-MB-231 cells, an E-cadherin-deficient cell line, the MDCK cell, in which GnTIII expression is undetectable, and fibroblasts, which lack E-cadherin
-
stimulation of the Wnt signaling pathway by the addition of exogenous Wnt3a or SB415286 consistently and significantly inhibits enzyme expression
-
the expression levels of GnT-III are suppressed about 25fold in transforming growth factor-beta-treated cells (5 ng/ml)
-
during epithelial-mesenchymal-transition, enzyme expression is dramatically decreased and later recoveres when cells return to an epithelial-like phenotype
-
E-cadherin-mediated cell-cell interaction upregulates GnT-III expression. Significant upregulation of GnT-III expression in epithelial cells that express basal levels of E-cadherin and GnT-III
-
E-cadherin-mediated cell-cell interaction upregulates GnT-III expression, suggesting that regulation of GnT-III and E-cadherin expression may exist as a positive feedback loop
-
increase of enzyme expression by wild-type E-cadherin; wild-type E-cadherin regulates MGAT3 gene transcription resulting in increased GnT-III expression. GnT-III mRNA transcription levels in MDA-MB-435 cells transfected with E-cadherin wild-type are ca. 2fold higher than those in MDA-MB-435 mock cells
-
significant up-regulation of GnT-III expression in epithelial cells that express basal levels of E-cadherin and GnT-III. Expression levels of GnT-III and its products, the bisected N-glycans, are up-regulated by cell-cell interaction via the E-cadherin-catenin-actin complex. GnT-III expression is significantly up-regulated in cells cultured under dense conditions. Modest increase in GnT-III expression under dense culture conditions in alpha-catenin-deficient DLD-1 cells as well as in E-cadherin-deficient MDA-MB-231 cells. Mutual regulation of GnT-III expression and E-cadherin-mediated cell-cell interaction exists as a positive-feedback loop
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shRNA knockdown of beta-catenin results in a dramatic increase in enzyme expression
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the expression levels of GnT-III are suppressed about 25fold in transforming growth factor-beta-treated cells (5 ng/ml)
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ENGINEERING
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
D321A
-
site-directed mutagenesis, expression level in COS-1 cells similar to wild-type, but no remaining catalytic activity
D321A
-
inactive
D323A
-
expression of a catalytically inactive D232A mutant in human hepatoblastoma cell line Huh6, leading to suppression of the endogenous enzyme activity, but not to a significant decrease in the expression level of the endogenous enzyme; site-directed mutagenesis, expression level in COS-1 cells similar to wild-type, but no remaining catalytic activity
D329A
-
site-directed mutagenesis, unaltered compared to wild-type
N243Q
-
site-directed mutagenesis of 1 N-glycosylation site, 40-50% activity compared to the wild-type, slightly increased Km-value for the donor substrate
N243Q/N261Q
-
site-directed mutagenesis of 2 N-glycosylation sites, 10% activity compared to the wild-type
N243Q/N261Q
-
-
N243Q/N261Q/N399Q
-
site-directed mutagenesis of all N-glycosylation sites, no remaining activity
N243Q/N261Q/N399Q
-
-
N243Q/N399Q
-
site-directed mutagenesis of 2 N-glycosylation sites, highly reduced activity
N243Q/N399Q
-
-
N261Q
-
site-directed mutagenesis of 1 N-glycosylation site, 40-50% activity compared to the wild-type, slightly increased Km-value for the donor substrate
N261Q/N399Q
-
site-directed mutagenesis of 2 N-glycosylation sites, highly reduced activity
N261Q/N399Q
-
-
N399Q
-
site-directed mutagenesis of 1 N-glycosylation site, 70-80% activity compared to the wild-type
APPLICATION
ORGANISM
UNIPROT ACCESSION NO.
COMMENTARY
LITERATURE
medicine
-
enzyme activity is elevated in serum of 60 out of 86 patients with liver cirrhosis, and of 86 out of 91 patients with chronic hepatitis
medicine
-
enzyme activity in extrahepatic bile duct carcinoma is increased 3fold compared to mean enzyme activity values, resulting in increased bisecting-GlcNAc on the glycans of glycoproteins in cancer tissues and a 201 kDa bile glycoprotein
medicine
-
enzyme activity is elevated in three choriocarcinoma cell lines compared to normal placenta. Activity in JEG-3 cells is 27 times higher than normal
medicine
-
the majority of N-glycans of a recombinant antibody produced in Nicotiana tabacum expressing GnT-III is bisected and devoid of paucimannosidic structures. This might improve the efficacy of therapeutic antibodies produced in the transgenic plants
synthesis
-
overexpression of enzyme in human hepatoma cells fails to reduce branch formation of N-glycans, coexpression of caveolin-1 leads to a dramatic decrease in the extent of branching with no enhancement of enzyme activity
synthesis
-
transfection of mouse aorta endothelial cells with enzyme results in reduction of their susceptibility to complement-mediated cell lysis by normal human serum and suppresses the antigenicity of cells to human natural antibodies. Reactivity of glycoproteins of transfectants to normal human serum and GSIB4 lectin is reduced
synthesis
-
introduction of human N-acetylglucosaminyltransferase gene into tobacco plants leads to highly efficient synthesis of bisected N-glycans. The majority of N-glycans of an antibody produced in a plant expressing GnT-III is also bisected. This might improve the efficacy of therapeutic antibodies produced in this type of transgenic plant
medicine
-
apart from GnT-III overexpression, engineering of GnT-III localization is a versatile tool to modulate the biological activities of antibodies relevant for their therapeutic application
synthesis
-
RC12 cells, apheochromocytoma cell line, transfected with enzyme gene, result in suppression of neurite outgrowth induced by costimulation of epidermal growth factor and integrins. Epidermal growth factor receptor-mediated ERK-activation is blocked in transfectants. Epidermal growth factor receptor of transfectants is modified by bisecting GlcNAc in its N-glycan structures