Any feedback?
Information on EC 2.4.1.145 - alpha-1,3-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase
for references in articles please use BRENDA:EC2.4.1.145Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
EC Tree
2.4.1.145 alpha-1,3-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferaseIUBMB Comments
Requires Mn2+. The enzyme, found in vertebrates, participates in the processing of N-glycans in the Golgi apparatus. By adding a glucosaminyl residue to biantennary N-linked glycans, it enables the synthesis of tri- and tetra-antennary complexes.
Specify your search results
Word Map
The enzyme appears in viruses and cellular organisms
Reaction Schemes
+
=
+
+
=
+
Synonyms
gnt-iv, gnt-iva, mgat4a, gnt-ivb, n-acetylglucosaminyltransferase iv, gnt iv, mgat4b, n-acetylglucosaminyltransferase-iv, n-acetylglucosaminyltransferase iva, glcnactase-iv, 
more
topPlease wait a moment until the data is sorted. This message will disappear when the data is sorted.
SYNONYM 
ORGANISM
UNIPROT
COMMENTARY 
LITERATURE
alpha-1,3-mannosylglycoprotein beta-1,4-N-acetylglucosaminyltransferase
-
-
-
-
beta-acetylglucosaminyltransferase IV
-
-
-
-
EC 2.4.1.51
-
-
formerly, part transferred
-
GnT-IVa
GnT-IVb
Mgat4a
N-acetylglucosaminyltransferase IV
N-acetylglucosaminyltransferase-IV
N-acetylglucosaminyltransferase-IVa
N-acetylglucosaminyltransferase-IVb
N-glycosyl-oligosaccharide-glycoprotein N-acetylglucosaminyltransferase IV
-
-
-
-
uridine diphosphoacetylglucosamine-glycopeptide beta4-acetylglucosaminyltransferase IV
-
-
-
-
N-acetylglucosaminyltransferase IV
-
-
-
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
REACTION
REACTION DIAGRAM
COMMENTARY
ORGANISM
UNIPROT
LITERATURE
UDP-N-acetyl-alpha-D-glucosamine + beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[protein] = UDP + beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[protein]
-
-
-
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
hexosyl group transfer
-
-
-
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
SYSTEMATIC NAME
IUBMB Comments
UDP-N-acetyl-alpha-D-glucosamine:N-acetyl-beta-D-glucosaminyl-(1->2)-alpha-D-mannosyl-(1->3)-beta-D-mannosyl-glycoprotein 4-beta-N-acetyl-D-glucosaminyltransferase (configuration-inverting)
Requires Mn2+. The enzyme, found in vertebrates, participates in the processing of N-glycans in the Golgi apparatus. By adding a glucosaminyl residue to biantennary N-linked glycans, it enables the synthesis of tri- and tetra-antennary complexes.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
CAS REGISTRY NUMBER
COMMENTARY
86498-16-0
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
SUBSTRATE
PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
UDP-N-acetyl-alpha-D-glucosamine + beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[integrin beta1]
UDP + beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[integrin beta1]
-
-
-
?
UDP-N-acetyl-alpha-D-glucosamine + beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[lysosome-associated membrane glycoprotein 2]
UDP + beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[lysosome-associated membrane glycoprotein 2]
UDP-N-acetyl-alpha-D-glucosamine + beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[protein]
UDP + beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[protein]
-
-
-
?
UDP-N-acetyl-alpha-D-glucosamine + pyridylaminated acceptor substrate
?
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP-N-acetyl-D-glucosamine + biantennary N-glycan
?
-
the enzyme transfers a N-acetyl-D-glucosamine from UDP-N-acetyl-D-glucosamine to the biantennary oligosaccharide and produces triantennary N-glycans with a beta1,4-N-acetyl-D-glucosamine on the alpha1,3-Man arm
-
-
?
UDP-N-acetyl-D-glucosamine + GlcNAcbeta1-2(GlcNAcbeta1-6)Manalpha1-6(GlcNAcbeta1-2Manalpha1-3)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
?
UDP-N-acetyl-D-glucosamine + GlcNAcbeta1-2Manalpha1-3(GlcNAcbeta1-2Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
?
UDP-N-acetyl-D-glucosamine + GlcNAcbeta1-2Manalpha1-3(GlcNAcbeta1-2Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
UDP + ?
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + GlcNAcbeta1-2Manalpha1-3(Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
?
UDP-N-acetyl-D-glucosamine + GlcNAcbeta1-2Manalpha1-6(GlcNAcbeta1-2Manalpha1-3)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
?
-
isozyme GnT-IVb has about 30% activity of isozyme GnT-IVa
-
-
?
UDP-N-acetyl-alpha-D-glucosamine + beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[lysosome-associated membrane glycoprotein 2]
UDP + beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[lysosome-associated membrane glycoprotein 2]
i.e. LAMP-2, LAMP-2 has 16 N-glycans which play crucial roles in cell adhesion to ECM and metastasis of cancer cells because N-glycans configure cell surface ligands of cancer cells for galectin-1, galectin-3, and selectins on extracellular matrix or the membranes of the counter cell
-
-
?
UDP-N-acetyl-alpha-D-glucosamine + beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[lysosome-associated membrane glycoprotein 2]
UDP + beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[lysosome-associated membrane glycoprotein 2]
i.e. LAMP-2
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
maximal activity requires the presence of both terminal beta-1,2-linked N-acetylglucosamine residues in the substrate
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
maximal activity requires the presence of both terminal beta-1,2-linked N-acetylglucosamine residues in the substrate
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
R represents the remainder of the N-oligosaccharide in the glycoprotein acceptor, the enzyme adds N-cetylglucosamine in beta-1,4-linkage to the alpha-1,3-linked mannosyl residues of the trimannosyl core of N-glycosyloligosaccharides
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
GnT-IVa is primarily responsible for the biosynthesis of complex-type N-glycans
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
GnT-IVb might contribute to the basal GnT-IV activity in cells
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
the enzyme is involved in the branch formation of Asn-linked sugar chains
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
pyridylaminated sugar chain
-
?
UDP-N-acetyl-D-glucosamine + GlcNAcbeta1-2(GlcNAcbeta1-6)Manalpha1-6(GlcNAcbeta1-2Manalpha1-3)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
?
-
N-acetylglucosaminyltransferase-IVa
-
-
?
UDP-N-acetyl-D-glucosamine + GlcNAcbeta1-2(GlcNAcbeta1-6)Manalpha1-6(GlcNAcbeta1-2Manalpha1-3)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
?
-
N-acetylglucosaminyltransferase-IVb
-
-
?
UDP-N-acetyl-D-glucosamine + GlcNAcbeta1-2Manalpha1-3(GlcNAcbeta1-2Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
?
-
N-acetylglucosaminyltransferase-IVa
-
-
?
UDP-N-acetyl-D-glucosamine + GlcNAcbeta1-2Manalpha1-3(GlcNAcbeta1-2Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
?
-
N-acetylglucosaminyltransferase-IVb
-
-
?
UDP-N-acetyl-D-glucosamine + GlcNAcbeta1-2Manalpha1-3(Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
?
-
N-acetylglucosaminyltransferase-IVa
-
-
?
UDP-N-acetyl-D-glucosamine + GlcNAcbeta1-2Manalpha1-3(Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
?
-
N-acetylglucosaminyltransferase-IVb
-
-
?
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate)
(Substrate)
LITERATURE
(Substrate)
(Substrate)
COMMENTARY
(Product)
(Product)
LITERATURE
(Product)
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
r=reversible
ir=irreversible
?=not specified
UDP-N-acetyl-alpha-D-glucosamine + beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[lysosome-associated membrane glycoprotein 2]
UDP + beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[lysosome-associated membrane glycoprotein 2]
i.e. LAMP-2, LAMP-2 has 16 N-glycans which play crucial roles in cell adhesion to ECM and metastasis of cancer cells because N-glycans configure cell surface ligands of cancer cells for galectin-1, galectin-3, and selectins on extracellular matrix or the membranes of the counter cell
-
-
?
UDP-N-acetyl-alpha-D-glucosamine + beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[protein]
UDP + beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc-N-Asn-[protein]
-
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
-
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
GnT-IVa is primarily responsible for the biosynthesis of complex-type N-glycans
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
GnT-IVb might contribute to the basal GnT-IV activity in cells
-
-
?
UDP-N-acetyl-D-glucosamine + 3-(2-[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
UDP + 3-(2,4-bis[N-acetyl-beta-D-glucosaminyl]-alpha-D-mannosyl)-beta-D-mannosyl-R
-
the enzyme is involved in the branch formation of Asn-linked sugar chains
-
-
?
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
METALS and IONS
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
Mn2+
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
additional information
sugar nucleotides having the UDP moiety inhibit activity to different extent
-
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
ACTIVATING COMPOUND
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
DISEASE
TITLE OF PUBLICATION
LINK TO PUBMED
alpha-1,3-mannosyl-glycoprotein 4-beta-n-acetylglucosaminyltransferase deficiency
Physiological and glycomic characterization of N-acetylglucosaminyltransferase-IVa and -IVb double deficient mice.
Carcinoma, Hepatocellular
Determination of N-acetylglucosaminyltransferases III, IV and V in normal and hepatoma tissues of rats.
Choriocarcinoma
High expression of N-acetylglucosaminyltransferase IVa promotes invasion of choriocarcinoma.
Choriocarcinoma
Structural differences found in the asparagine-linked sugar chains of human chorionic gonadotropins purified from the urine of patients with invasive mole and with choriocarcinoma.
Choriocarcinoma
Structure, pathology and function of the N-linked sugar chains of human chorionic gonadotropin.
Choriocarcinoma
Unusually high expression of N-acetylglucosaminyltransferase-IVa in human choriocarcinoma cell lines: a possible enzymatic basis of the formation of abnormal biantennary sugar chain.
Diabetes Mellitus, Type 2
Targeted genetic inactivation of N-acetylglucosaminyltransferase-IVa impairs insulin secretion from pancreatic beta cells and evokes type 2 diabetes.
Diabetes Mellitus, Type 2
The transcription of MGAT4A glycosyl transferase is increased in white cells of peripheral blood of Type 2 Diabetes patients.
Hydatidiform Mole, Invasive
N-acetylglucosaminyltransferase IVa promotes invasion of choriocarcinoma.
Lung Neoplasms
Multiplexed surrogate analysis of glycotransferase activity in whole biospecimens.
Neoplasm Metastasis
N-acetylglucosaminyltransferase IVa regulates metastatic potential of mouse hepatocarcinoma cells through glycosylation of CD147.
Neoplasms
Aberrant expression of N-acetylglucosaminyltransferase-IVa and IVb (GnT-IVa and b) in pancreatic cancer.
Neoplasms
Glycans and cancer: role of N-glycans in cancer biomarker, progression and metastasis, and therapeutics.
Neoplasms
Identification of hub genes and key pathways associated with the progression of gynecological cancer.
Neoplasms
Kinetic properties and substrate specificities of two recombinant human N-acetylglucosaminyltransferase-IV isozymes.
Neoplasms
Unusually high expression of N-acetylglucosaminyltransferase-IVa in human choriocarcinoma cell lines: a possible enzymatic basis of the formation of abnormal biantennary sugar chain.
Pancreatic Neoplasms
Aberrant expression of N-acetylglucosaminyltransferase-IVa and IVb (GnT-IVa and b) in pancreatic cancer.
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
IMAGE
0.532 - 3.35
GlcNAcbeta1-2(GlcNAcbeta1-6)Manalpha1-6(GlcNAcbeta1-2Manalpha1-3)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
1.04 - 6.94
GlcNAcbeta1-2Man1-3(GlcNAcbeta1-2Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
0.971 - 5.72
GlcNAcbeta1-2Manalpha1-3(GlcNAcbeta1-2Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
3.19 - 10.5
GlcNAcbeta1-2Manalpha1-3(Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
0.532
GlcNAcbeta1-2(GlcNAcbeta1-6)Manalpha1-6(GlcNAcbeta1-2Manalpha1-3)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
-
37°C, pH 7.5, recombinant full-length N-acetylglucosaminyltransferase-IVa
3.35
GlcNAcbeta1-2(GlcNAcbeta1-6)Manalpha1-6(GlcNAcbeta1-2Manalpha1-3)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
-
37°C, pH 7.5, recombinant full-length N-acetylglucosaminyltransferase-IVb
1.04
GlcNAcbeta1-2Man1-3(GlcNAcbeta1-2Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
-
37°C, pH 7.5, recombinant soluble human flag-GnTIVa
6.94
GlcNAcbeta1-2Man1-3(GlcNAcbeta1-2Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
-
37°C, pH 7.5, recombinant soluble human flag-GnTIVa
0.971
GlcNAcbeta1-2Manalpha1-3(GlcNAcbeta1-2Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
-
37°C, pH 7.5, recombinant full-length N-acetylglucosaminyltransferase-IVa
5.72
GlcNAcbeta1-2Manalpha1-3(GlcNAcbeta1-2Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
-
37°C, pH 7.5, recombinant full-length N-acetylglucosaminyltransferase-IVb
3.19
GlcNAcbeta1-2Manalpha1-3(Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
-
37°C, pH 7.5, recombinant full-length N-acetylglucosaminyltransferase-IVa
10.5
GlcNAcbeta1-2Manalpha1-3(Manalpha1-6)Manbeta1-4GlcNAcbeta1-4GlcNAc-2-aminopyridine
-
37°C, pH 7.5, recombinant full-length N-acetylglucosaminyltransferase-IVb
0.118
UDP-N-acetyl-D-glucosamine
-
37°C, pH 7.5, recombinant full-length N-acetylglucosaminyltransferase-IVa
0.242
UDP-N-acetyl-D-glucosamine
-
37°C, pH 7.5, recombinant full-length N-acetylglucosaminyltransferase-IVb
0.341
UDP-N-acetyl-D-glucosamine
-
37°C, pH 7.5, recombinant soluble human flag-GnTIVa
0.358
UDP-N-acetyl-D-glucosamine
-
37°C, pH 7.5, recombinant soluble human flag-GnTIVa
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
additional information
additional information
-
comparison between normal and malignant chorionic cells
additional information
-
comparison between normal and malignant pancreatic cells
additional information
differences between isozymes expressed in COS7 cells
additional information
-
comparison between normal and malignant kidney cortex cells
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
7.3
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
pH RANGE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
TEMPERATURE OPTIMUM
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
37
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
ORGANISM
COMMENTARY
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
SOURCE
-
isoform GnT-IVa is highly restricted in gastrointestinal organs and peripheral blood leukocytes
brenda
high expression of GnT-IVa, profiles and structures of the cell-surface N-glycan of hepatocellular carcinoma cells, high levels of NA3Fb, a core-alpha-1,6-fucosylated triantennary glycan, overview
brenda
-
isoform GnT-IVa is highly restricted in gastrointestinal organs and peripheral blood leukocytes
brenda
additional information
in epirubicin-resistant HLE cells, GnT-IVa expression is decreased
brenda
in epirubicin-resistant HLE cells, GnT-IVb expression is increased
brenda
Panc-1, PCI6, MIA PaCa-2, and BxPC3. Down-regulation of GnT-IVa in pancreatic cancer cells is due to an epigenetic abnormality in the gene. When pancreatic cancer cells are treated with 5-aza-C or butyrate, the expression of GnT-IVa is dramatically increased
brenda
Panc-1, PCI6, MIA PaCa-2, and BxPC3. Expression of GnT-IVb is increased in pancreatic cancer, compared to normal pancreatic tissues
brenda
additional information
-
isoform GnT-IVb is ubiquitously and constitutively expressed among tissues
brenda
additional information
-
in wild type mice, GnT-IVa expression is restricted to gastrointestinal tissues, whereas GnT-IVb is broadly expressed among organs
brenda
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
LOCALIZATION
ORGANISM
UNIPROT
COMMENTARY
GeneOntology No.
LITERATURE
SOURCE
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY
LITERATURE
malfunction
metabolism
physiological function
malfunction
-
isozyme GnT-IVb deficiency shows mild phenotypic alterations in hematopoietic cell populations and hemostasis, GnT-IVa/-IVb double deficiency completely abolishes GnT-IV activity that results in the disappearance of the GlcNAcbeta1-4 branch on the Manalpha1-3 arm
malfunction
aberrant glycosylation of the cell surface is associated with the malignant transformation of normal cells. Tumor-cell-surface glycans are closely associated with tumor-cell migration, adhesion, and metastasis4, profiling of specific cell surface N-glycans in hepatocellular carcinoma with clinical tissues (88 tumor and adjacent normal tissues) and the corresponding serum samples of hepatocellular carcinoma patients, overview. The level of core-alpha-1,6-fucosylated triantennary glycan (NA3Fb) increases both on the cell surface and in the serum samples of hepatocellular carcinoma patients, and mRNA and protein expression of N-acetylglucosaminyltransferase IVa (GnT-IVa), which is related to the synthesis of the NA3Fb, is substantially increased in hepatocellular carcinoma tissues. Knockdown of GnT-IVa leads to a decreased level of NA3Fb and decreased ability of invasion and migration in HCC cells. The high expression of GnT-IVa is the cause of the abnormal increase of NA3Fb on the HCC cell surface, which regulates cell migration
malfunction
GnT-IVa overexpression increases cell adhesion, migration and invasion abilities of Jar cells. GnT-IVa overexpression increases cellular interaction with ECM as demonstrated by the relative adhesion rates of mock cells and Jar-GnT4a cells on fibronectin, collagen type I and collagen type IV. GnT-IVa knockdown in choriocarcinoma cells suppresses migration and invasion and decreases cellular adhesion to extracellular matrix
metabolism
-
N-acetylglucosaminyltransferase-IV synthesizes the GlcNAcbeta(1-4) branch structure on the Manalpha(1-3) arm of N-glycan core, and is essential for the production of multiantennary N-glycans cooperatively with N-acetylglucosaminyltransferase-V
metabolism
-
N-acetylglucosaminyltransferase-IV synthesizes the GlcNAcbeta(1-4) branch structure on the Manalpha(1-3) arm of N-glycan core, and is essential for the production of multiantennary N-glycans cooperatively with N-acetylglucosaminyltransferase-V
physiological function
-
the enzyme acts in migration and metastasis of mouse hepatocarcinoma cells through altering the glycosylation of CD147
physiological function
the enzyme is involved in synthesis of tetra-antennary N-linked glycans. Cell surface glycans play an important role in intercellular and intracellular processes, including cell adhesion and development, cell recognition, and cancer development and metastasis. Changes in cell surface glycosylation modulate cellular activity
physiological function
N-acetylglucosaminyltransferase IV (GnT-IV) is a glycosyltransferase which catalyses the formation of beta1,4GlcNAc branches on the mannose core of N-glycans. beta1,4GlcNAc branches on human chorionic gonadotropin (hCG) are detected in GTN but not in normal pregnancy or hydatidiform mole. N-acetylglucosaminyltransferase IVa promotes invasion of choriocarcinoma. Identification of target proteins for GnT-IVa glycosylation which contribute to the malignancy of choriocarcinoma, overview. GnT-IVa overexpression increases highly branched N-glycans on integrin beta1. Highly branched N-glycans resulting from the action of GnT-IVa are strongly detected in invasive mole and choriocarcinoma, in proportion to the GnT-IVa protein expression. GnT-IVa may play an important role in accelerating the malignancy of choriocarcinoma through addition of beta1,4GlcNAc branches to the N-glycans on some proteins
Please wait a moment until the data is sorted. This message will disappear when the data is sorted.
