Enzymes
| UniProtKB help_outline | 11,475 proteins |
| Enzyme class help_outline |
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- Name help_outline ADP-L-glycero-β-D-manno-heptose Identifier CHEBI:61506 Charge -2 Formula C17H25N5O16P2 InChIKeyhelp_outline KMSFWBYFWSKGGR-DTBZDYEHSA-L SMILEShelp_outline [H][C@@]1(O[C@@H](OP([O-])(=O)OP([O-])(=O)OC[C@H]2O[C@H]([C@H](O)[C@@H]2O)n2cnc3c(N)ncnc23)[C@@H](O)[C@@H](O)[C@@H]1O)[C@@H](O)CO 2D coordinates Mol file for the small molecule Search links Involved in 10 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline an L-α-D-Hep-(1→5)-[α-Kdo-(2→4)]-α-Kdo-(2→6)-lipid A Identifier CHEBI:193068 Charge -6 Formula C49H66N2O45P2R6 SMILEShelp_outline [C@H]1([C@H]([C@H]([C@@H]([C@](O1)([C@H](CO)O)[H])O)O)O)O[C@@H]2[C@@H](C[C@](O[C@@]2([C@@H](CO)O)[H])(OC[C@@H]3[C@@H](OP(=O)([O-])[O-])[C@H](OC(=O)C[C@@H](*)OC(=O)*)[C@@H](NC(=O)C[C@@H](*)OC(=O)*)[C@H](OC[C@@H]4[C@H]([C@@H]([C@H]([C@H](O4)OP(=O)([O-])[O-])NC(=O)C[C@@H](*)O)OC(=O)C[C@@H](*)O)O)O3)C([O-])=O)O[C@]5(C([O-])=O)C[C@@H](O)[C@H]([C@](O5)([C@H](O)CO)[H])O 2D coordinates Mol file for the small molecule Search links Involved in 4 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline ADP Identifier CHEBI:456216 (Beilstein: 3783669) help_outline Charge -3 Formula C10H12N5O10P2 InChIKeyhelp_outline XTWYTFMLZFPYCI-KQYNXXCUSA-K SMILEShelp_outline Nc1ncnc2n(cnc12)[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 835 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline an L-α-D-Hep-(1→3)-L-α-D-Hep-(1→5)-[α-Kdo-(2→4)]-α-Kdo-(2→6)-lipid A Identifier CHEBI:193069 Charge -6 Formula C56H78N2O51P2R6 SMILEShelp_outline [C@H]1([C@H]([C@H]([C@@H]([C@](O1)([C@H](CO)O)[H])O)O[C@@H]2[C@H]([C@H]([C@@H]([C@](O2)([C@H](CO)O)[H])O)O)O)O)O[C@@H]3[C@@H](C[C@](O[C@@]3([C@@H](CO)O)[H])(OC[C@@H]4[C@@H](OP(=O)([O-])[O-])[C@H](OC(=O)C[C@@H](*)OC(=O)*)[C@@H](NC(=O)C[C@@H](*)OC(=O)*)[C@H](OC[C@@H]5[C@H]([C@@H]([C@H]([C@H](O5)OP(=O)([O-])[O-])NC(=O)C[C@@H](*)O)OC(=O)C[C@@H](*)O)O)O4)C([O-])=O)O[C@]6(C([O-])=O)C[C@@H](O)[C@H]([C@](O6)([C@H](O)CO)[H])O 2D coordinates Mol file for the small molecule Search links Involved in 5 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 9,176 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:74071 | RHEA:74072 | RHEA:74073 | RHEA:74074 | |
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| Reaction direction help_outline | undefined | left-to-right | right-to-left | bidirectional |
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Related reactions help_outline
Specific form(s) of this reaction
Publications
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Comparative functional characterization in vitro of heptosyltransferase I (WaaC) and II (WaaF) from Escherichia coli.
Gronow S., Brabetz W., Brade H.
Heptosyltransferase II, encoded by the waaF gene of Escherichia coli, is a glycosyltransferase involved in the synthesis of the inner core region of lipopolysaccharide. The gene was subcloned from plasmid pWSB33 [Brabetz, W., Müller-Loennies, S., Holst, O. & Brade, H. (1997) Eur. J. Biochem. 247, ... >> More
Heptosyltransferase II, encoded by the waaF gene of Escherichia coli, is a glycosyltransferase involved in the synthesis of the inner core region of lipopolysaccharide. The gene was subcloned from plasmid pWSB33 [Brabetz, W., Müller-Loennies, S., Holst, O. & Brade, H. (1997) Eur. J. Biochem. 247, 716-724] into a shuttle vector for the expression in the gram-positive host Corynebacterium glutamicum. The in vitro activity of the enzyme was investigated in comparison to that of heptosyltransferase I (WaaC) using as a source for the sugar nucleotide donor, ADP-LglyceroDmanno-heptose, a low molecular mass filtrate from a DeltawaaCF E. coli strain. Synthetic lipid A analogues varying in the acylation or phosphorylation pattern or both were tested as acceptors for the subsequent transfer of 3-deoxy-Dmanno-oct-2-ulosonic acid (Kdo) and heptose by successive action of Kdo transferase (WaaA), heptosyltransferase I (WaaC) and heptosyltransferase II (WaaF). The reaction products were characterized after separation by TLC and blotting with monoclonal antibodies specific for the acceptor, the intermediates and the final products. << Less
Eur. J. Biochem. 267:6602-6611(2000) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.
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Characterization of the Campylobacter jejuni heptosyltransferase II gene, waaF, provides genetic evidence that extracellular polysaccharide is lipid A core independent.
Oldfield N.J., Moran A.P., Millar L.A., Prendergast M.M., Ketley J.M.
Campylobacter jejuni produces both lipooligosaccharide (LOS) and a higher-molecular-weight polysaccharide that is believed to form a capsule. The role of these surface polysaccharides in C. jejuni-mediated enteric disease is unclear; however, epitopes associated with the LOS are linked to the deve ... >> More
Campylobacter jejuni produces both lipooligosaccharide (LOS) and a higher-molecular-weight polysaccharide that is believed to form a capsule. The role of these surface polysaccharides in C. jejuni-mediated enteric disease is unclear; however, epitopes associated with the LOS are linked to the development of neurological complications. In Escherichia coli and Salmonella enterica serovar Typhimurium the waaF gene encodes a heptosyltransferase, which catalyzes the transfer of the second L-glycero-D-manno-heptose residue to the core oligosaccharide moiety of lipopolysaccharide (LPS), and mutation of waaF results in a truncated core oligosaccharide. In this report we confirm experimentally that C. jejuni gene Cj1148 encodes the heptosyltransferase II enzyme, WaaF. The Campylobacter waaF gene complements an S. enterica serovar Typhimurium waaF mutation and restores the ability to produce full-sized lipopolysaccharide. To examine the role of WaaF in C. jejuni, waaF mutants were constructed in strains NCTC 11168 and NCTC 11828. Loss of heptosyltransferase activity resulted in the production of a truncated core oligosaccharide, failure to bind specific ligands, and loss of serum reactive GM(1), asialo-GM(1), and GM(2) ganglioside epitopes. The mutation of waaF did not affect the higher-molecular-weight polysaccharide supporting the production of a LOS-independent capsular polysaccharide by C. jejuni. The exact structural basis for the truncation of the core oligosaccharide was verified by comparative chemical analysis. The NCTC 11168 core oligosaccharide differs from that known for HS:2 strain CCUG 10936 in possessing an extra terminal disaccharide of galactose-beta(1,3) N-acetylgalactosamine. In comparison, the waaF mutant possessed a truncated molecule consistent with that observed with waaF mutants in other bacterial species. << Less
J. Bacteriol. 184:2100-2107(2002) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.
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Characterization of the physiological substrate for lipopolysaccharide heptosyltransferases I and II.
Gronow S., Oertelt C., Ervelae E., Zamyatina A., Kosma P., Skurnik M., Holst O.
L-Glycero-D-manno-heptopyranose is a characteristic compound of many lipopolysaccharide (LPS) core structures of Gram-negative bacteria. In Escherichia coli two heptosyltransferases, namely WaaC and WaaF, are known to transfer L-glycero-D-manno-heptopyranose to Re-LPS and Rd(2)-LPS, respectively. ... >> More
L-Glycero-D-manno-heptopyranose is a characteristic compound of many lipopolysaccharide (LPS) core structures of Gram-negative bacteria. In Escherichia coli two heptosyltransferases, namely WaaC and WaaF, are known to transfer L-glycero-D-manno-heptopyranose to Re-LPS and Rd(2)-LPS, respectively. It had been proposed that both reactions involve ADPL-glycero-D-manno-heptose as a sugar donor; however, the structure of this nucleotide sugar had never been completely elucidated. In the present study, ADPL-glycero-D-manno-heptose was isolated from a heptosyltransferase-deficient E. coli mutant, and its structure was determined by nuclear magnetic resonance spectroscopy and matrix-assisted laser-desorption/ionization time-of-flight mass spectrometry as ADPL-glycero-beta-D-manno-heptopyranose. This compound represented the sole constituent of the bacterial extract that was accepted as a sugar donor by heptosyltransferases I and II in vitro. << Less
J. Endotoxin Res. 7:263-270(2001) [PubMed] [EuropePMC]
This publication is cited by 3 other entries.