Information on EC 2.1.1.294 - 3-O-phospho-polymannosyl GlcNAc-diphospho-ditrans,octacis-undecaprenol 3-phospho-methyltransferase

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The expected taxonomic range for this enzyme is: Escherichia coli

EC NUMBER
COMMENTARY hide
2.1.1.294
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RECOMMENDED NAME
GeneOntology No.
3-O-phospho-polymannosyl GlcNAc-diphospho-ditrans,octacis-undecaprenol 3-phospho-methyltransferase
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REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
S-adenosyl-L-methionine + 3-O-phospho-alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-[alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-Man-(1->2)-alpha-D-Man-(1->2)]n-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-GlcNAc-diphospho-ditrans,octacis-undecaprenol = S-adenosyl-L-homocysteine + 3-O-methylphospho-alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-[alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-Man-(1->2)-alpha-D-Man-(1->2)]n-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-GlcNAc-diphospho-ditrans,octacis-undecaprenol
show the reaction diagram
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PATHWAY
BRENDA Link
KEGG Link
MetaCyc Link
Escherichia coli serotype O9a O-antigen biosynthesis
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SYSTEMATIC NAME
IUBMB Comments
S-adenosyl-L-methionine:3-O-phospho-alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-[alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-Man-(1->2)-alpha-D-Man-(1->2)]n-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-GlcNAc-diphospho-ditrans,octacis-unde
The enzyme is involved in the biosynthesis of the polymannose O-polysaccharide in the outer leaflet of the membrane of Escherichia coli serotype O9a. O-Polysaccharide structures vary extensively because of differences in the number and type of sugars in the repeat unit. The dual kinase/methylase WbdD also catalyses the preceding phosphorylation of alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)]n-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-GlcNAc-diphospho-ditrans,octacis-undecaprenol (cf. EC 2.7.1.181, alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-Man-diphospho-ditrans,octacis-undecaprenol 3-kinase).
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
GENERAL INFORMATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
malfunction
physiological function
SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
S-adenosyl-L-methionine + 3-O-phospho-alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)]n-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-GlcNAc-diphospho-ditrans,octacis-undecaprenol
S-adenosyl-L-homocysteine + 3-O-methylphospho-alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)]n-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-GlcNAc-diphospho-ditrans,octacis-undecaprenol
show the reaction diagram
S-adenosyl-L-methionine + 8-azidooctyl 3-O-phospho-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-Man
S-adenosyl-L-homocysteine + 8-azidooctyl 3-O-methylphospho-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-Man
show the reaction diagram
S-adenosyl-L-methionine + O9a antigenic polysaccharide
S-adenosyl-L-homocysteine + methylated O9a antigenic polysaccharide
show the reaction diagram
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additional information
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enzyme WbdD is also active as polymannosyl GlcNAc-diphospho-ditrans,octacis-undecaprenol kinase, EC 2.7.1.181
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NATURAL SUBSTRATES
NATURAL PRODUCTS
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
S-adenosyl-L-methionine + 3-O-phospho-alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)]n-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-GlcNAc-diphospho-ditrans,octacis-undecaprenol
S-adenosyl-L-homocysteine + 3-O-methylphospho-alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->2)-alpha-D-Man-(1->2)-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)]n-alpha-D-Man-(1->3)-alpha-D-Man-(1->3)-alpha-D-GlcNAc-diphospho-ditrans,octacis-undecaprenol
show the reaction diagram
S-adenosyl-L-methionine + O9a antigenic polysaccharide
S-adenosyl-L-homocysteine + methylated O9a antigenic polysaccharide
show the reaction diagram
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additional information
?
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enzyme WbdD is also active as polymannosyl GlcNAc-diphospho-ditrans,octacis-undecaprenol kinase, EC 2.7.1.181
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COFACTOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
S-adenosyl-L-methionine
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TEMPERATURE OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
30
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assay at
LOCALIZATION
ORGANISM
UNIPROT
COMMENTARY hide
GeneOntology No.
LITERATURE
SOURCE
MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
65500
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x * 65500, soluble His6-tagged truncated derivative comprising amino acids 1 to 600 of WbdD
81731
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x * 81731, calculated from sequence
SUBUNITS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
Purification/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
soluble His6-tagged truncated derivative comprising amino acids 1 to 600 of WbdD
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Cloned/COMMENTARY
ORGANISM
UNIPROT
LITERATURE
overexpression of WbdD decreases O-polysaccharide chain length. O-polysaccharide chain length is not reduced by overexpressing the heterologous plasmid encoded WbdD proteins. The WbdD proteins are therefore specific for a given serotype
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