Enzymes
| UniProtKB help_outline | 1 proteins |
| Enzyme class help_outline |
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- Name help_outline β-D-Gal-(1→3)-α-D-GalNAc-(1→3)-α-D-GalNAc-di-trans,octa-cis-undecaprenyl diphosphate Identifier CHEBI:73988 Charge -2 Formula C77H126N2O22P2 InChIKeyhelp_outline DTHGKYAZBNWFMJ-RIJYEUHMSA-L SMILEShelp_outline CC(=O)N[C@H]1[C@H](O[C@H](CO)[C@H](O)[C@@H]1O[C@@H]1O[C@H](CO)[C@H](O)[C@H](O)[C@H]1O)O[C@H]1[C@@H](O)[C@@H](CO)O[C@H](OP([O-])(=O)OP([O-])(=O)OC\C=C(\C)CC\C=C(\C)CC\C=C(\C)CC\C=C(\C)CC\C=C(\C)CC\C=C(\C)CC\C=C(\C)CC\C=C(\C)CC\C=C(/C)CC\C=C(/C)CCC=C(C)C)[C@@H]1NC(C)=O 2D coordinates Mol file for the small molecule Search links Involved in 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline GDP-β-L-fucose Identifier CHEBI:57273 (Beilstein: 9178112) help_outline Charge -2 Formula C16H23N5O15P2 InChIKeyhelp_outline LQEBEXMHBLQMDB-JGQUBWHWSA-L SMILEShelp_outline C[C@@H]1O[C@H](OP([O-])(=O)OP([O-])(=O)OC[C@H]2O[C@H]([C@H](O)[C@@H]2O)n2cnc3c2nc(N)[nH]c3=O)[C@@H](O)[C@H](O)[C@@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 70 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline α-L-Fuc-(1→2)-β-D-Gal-(1→3)-α-D-GalNAc-(1→3)-α-D-GalNAc-di-trans,octa-cis-undecaprenyl diphosphate Identifier CHEBI:73991 Charge -2 Formula C83H136N2O26P2 InChIKeyhelp_outline JNHZJPLQKQTBFJ-WDJWUHPUSA-L SMILEShelp_outline C[C@@H]1O[C@@H](O[C@@H]2[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]2O[C@H]2[C@@H](O)[C@@H](CO)O[C@H](O[C@H]3[C@@H](O)[C@@H](CO)O[C@H](OP([O-])(=O)OP([O-])(=O)OC\C=C(\C)CC\C=C(\C)CC\C=C(\C)CC\C=C(\C)CC\C=C(\C)CC\C=C(\C)CC\C=C(\C)CC\C=C(\C)CC\C=C(/C)CC\C=C(/C)CCC=C(C)C)[C@@H]3NC(C)=O)[C@@H]2NC(C)=O)[C@@H](O)[C@H](O)[C@@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline GDP Identifier CHEBI:58189 Charge -3 Formula C10H12N5O11P2 InChIKeyhelp_outline QGWNDRXFNXRZMB-UUOKFMHZSA-K SMILEShelp_outline Nc1nc2n(cnc2c(=O)[nH]1)[C@@H]1O[C@H](COP([O-])(=O)OP([O-])([O-])=O)[C@@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 184 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline H+ Identifier CHEBI:15378 Charge 1 Formula H InChIKeyhelp_outline GPRLSGONYQIRFK-UHFFFAOYSA-N SMILEShelp_outline [H+] 2D coordinates Mol file for the small molecule Search links Involved in 9,431 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:36771 | RHEA:36772 | RHEA:36773 | RHEA:36774 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Publications
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In vitro bacterial polysaccharide biosynthesis: defining the functions of Wzy and Wzz.
Woodward R., Yi W., Li L., Zhao G., Eguchi H., Sridhar P.R., Guo H., Song J.K., Motari E., Cai L., Kelleher P., Liu X., Han W., Zhang W., Ding Y., Li M., Wang P.G.
Polysaccharides constitute a major component of bacterial cell surfaces and play critical roles in bacteria-host interactions. The biosynthesis of such molecules, however, has mainly been characterized through in vivo genetic studies, thus precluding discernment of the details of this pathway. Acc ... >> More
Polysaccharides constitute a major component of bacterial cell surfaces and play critical roles in bacteria-host interactions. The biosynthesis of such molecules, however, has mainly been characterized through in vivo genetic studies, thus precluding discernment of the details of this pathway. Accordingly, we present a chemical approach that enabled reconstitution of the E. coli O-polysaccharide biosynthetic pathway in vitro. Starting with chemically prepared undecaprenyl-diphospho-N-acetyl-D-galactosamine, the E. coli O86 oligosaccharide repeating unit was assembled by means of sequential enzymatic glycosylation. Successful expression of the putative polymerase Wzy using a chaperone coexpression system then allowed demonstration of polymerization in vitro using this substrate. Analysis of more substrates revealed a defined mode of recognition for Wzy toward the lipid moiety. Specific polysaccharide chain length modality was furthermore demonstrated to result from the action of Wzz. Collectively, polysaccharide biosynthesis was chemically reconstituted in vitro, providing a well defined system for further underpinning molecular details of this biosynthetic pathway. << Less
Nat. Chem. Biol. 6:418-423(2010) [PubMed] [EuropePMC]
This publication is cited by 5 other entries.
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Escherichia coli O86 O-antigen biosynthetic gene cluster and stepwise enzymatic synthesis of human blood group B antigen tetrasaccharide.
Yi W., Shao J., Zhu L., Li M., Singh M., Lu Y., Lin S., Li H., Ryu K., Shen J., Guo H., Yao Q., Bush C.A., Wang P.G.
Previous study showed that some Gram-negative bacteria possess human blood group activity. Among them, Escherichia coli O86 has high blood group B activity and weak blood group A activity. This is due to the cell surface O-antigen structure, which resembles that of human blood group B antigen. In ... >> More
Previous study showed that some Gram-negative bacteria possess human blood group activity. Among them, Escherichia coli O86 has high blood group B activity and weak blood group A activity. This is due to the cell surface O-antigen structure, which resembles that of human blood group B antigen. In this study, we sequenced the entire E. coli O86 antigen gene cluster and identified all the genes responsible for O-antigen biosynthesis by sequence comparative analysis. The blood group B-like antigen in E. coli O86 O-polysaccharide was synthesized by sequentially employing three glycosyltransferases identified in the gene cluster. More importantly, we identified a new bacterial glycosyltransferase (WbnI) equivalent to human blood group transferase B (GTB). The enzyme substrate specificity and stepwise enzymatic synthesis of blood group B-like antigen revealed that the biosynthetic pathway of B antigen is essentially the same in E. coli O86 as in humans. This new finding provides a model to study the specificity and structure relationship of blood group transferases and supports the hypothesis of anti-blood group antibody production by bacterial stimulation. << Less
J. Am. Chem. Soc. 127:2040-2041(2005) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.