Enzymes
| UniProtKB help_outline | 2 proteins |
| Enzyme class help_outline |
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- Name help_outline D-glycero-α-D-manno-heptose 1-phosphate Identifier CHEBI:61574 Charge -2 Formula C7H13O10P InChIKeyhelp_outline KMEJCSKJXSBBAN-ZUHYCWGWSA-L SMILEShelp_outline [H][C@@]1(O[C@H](OP([O-])([O-])=O)[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 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline GTP Identifier CHEBI:37565 (Beilstein: 5211792) help_outline Charge -4 Formula C10H12N5O14P3 InChIKeyhelp_outline XKMLYUALXHKNFT-UUOKFMHZSA-J SMILEShelp_outline Nc1nc2n(cnc2c(=O)[nH]1)[C@@H]1O[C@H](COP([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O)[C@@H](O)[C@H]1O 2D coordinates Mol file for the small molecule Search links Involved in 94 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
- Name help_outline diphosphate Identifier CHEBI:33019 (Beilstein: 185088) help_outline Charge -3 Formula HO7P2 InChIKeyhelp_outline XPPKVPWEQAFLFU-UHFFFAOYSA-K SMILEShelp_outline OP([O-])(=O)OP([O-])([O-])=O 2D coordinates Mol file for the small molecule Search links Involved in 1,129 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
- Name help_outline GDP-D-glycero-α-D-manno-heptose Identifier CHEBI:59971 Charge -2 Formula C17H25N5O17P2 InChIKeyhelp_outline HRUXIQZFNLQZQA-LNASZZQASA-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)n2cnc3c2nc(N)[nH]c3=O)[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 2 reaction(s) Find molecules that contain or resemble this structure Find proteins in UniProtKB for this molecule
Cross-references
| RHEA:27461 | RHEA:27462 | RHEA:27463 | RHEA:27464 | |
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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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Biosynthesis pathway of ADP-L-glycero-beta-D-manno-heptose in Escherichia coli.
Kneidinger B., Marolda C., Graninger M., Zamyatina A., McArthur F., Kosma P., Valvano M.A., Messner P.
The steps involved in the biosynthesis of the ADP-L-glycero-beta-D-manno-heptose (ADP-L-beta-D-heptose) precursor of the inner core lipopolysaccharide (LPS) have not been completely elucidated. In this work, we have purified the enzymes involved in catalyzing the intermediate steps leading to the ... >> More
The steps involved in the biosynthesis of the ADP-L-glycero-beta-D-manno-heptose (ADP-L-beta-D-heptose) precursor of the inner core lipopolysaccharide (LPS) have not been completely elucidated. In this work, we have purified the enzymes involved in catalyzing the intermediate steps leading to the synthesis of ADP-D-beta-D-heptose and have biochemically characterized the reaction products by high-performance anion-exchange chromatography. We have also constructed a deletion in a novel gene, gmhB (formerly yaeD), which results in the formation of an altered LPS core. This mutation confirms that the GmhB protein is required for the formation of ADP-D-beta-D-heptose. Our results demonstrate that the synthesis of ADP-D-beta-D-heptose in Escherichia coli requires three proteins, GmhA (sedoheptulose 7-phosphate isomerase), HldE (bifunctional D-beta-D-heptose 7-phosphate kinase/D-beta-D-heptose 1-phosphate adenylyltransferase), and GmhB (D,D-heptose 1,7-bisphosphate phosphatase), as well as ATP and the ketose phosphate precursor sedoheptulose 7-phosphate. A previously characterized epimerase, formerly named WaaD (RfaD) and now renamed HldD, completes the pathway to form the ADP-L-beta-D-heptose precursor utilized in the assembly of inner core LPS. << Less
J. Bacteriol. 184:363-369(2002) [PubMed] [EuropePMC]
This publication is cited by 3 other entries.
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Novel pathways for biosynthesis of nucleotide-activated glycero-manno-heptose precursors of bacterial glycoproteins and cell surface polysaccharides.
Valvano M.A., Messner P., Kosma P.
Microbiology 148:1979-1989(2002) [PubMed] [EuropePMC]
This publication is cited by 3 other entries.
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Biosynthesis of nucleotide-activated D-glycero-D-manno-heptose.
Kneidinger B., Graninger M., Puchberger M., Kosma P., Messner P.
The glycan chain repeats of the S-layer glycoprotein of Aneurinibacillus thermoaerophilus DSM 10155 contain d-glycero-d-manno-heptose, which has also been described as constituent of lipopolysaccharide cores of Gram-negative bacteria. The four genes required for biosynthesis of the nucleotide-acti ... >> More
The glycan chain repeats of the S-layer glycoprotein of Aneurinibacillus thermoaerophilus DSM 10155 contain d-glycero-d-manno-heptose, which has also been described as constituent of lipopolysaccharide cores of Gram-negative bacteria. The four genes required for biosynthesis of the nucleotide-activated form GDP-d-glycero-d-manno-heptose were cloned, sequenced, and overexpressed in Escherichia coli, and the corresponding enzymes GmhA, GmhB, GmhC, and GmhD were purified to homogeneity. The isomerase GmhA catalyzed the conversion of d-sedoheptulose 7-phosphate to d-glycero-d-manno-heptose 7-phosphate, and the phosphokinase GmhB added a phosphate group to form d-glycero-d-manno-heptose 1,7-bisphosphate. The phosphatase GmhC removed the phosphate in the C-7 position, and the intermediate d-glycero-alpha-d-manno-heptose 1-phosphate was eventually activated with GTP by the pyrophosphorylase GmhD to yield the final product GDP-d-glycero-alpha-d-manno-heptose. The intermediate and end products were analyzed by high performance liquid chromatography. Nuclear magnetic resonance spectroscopy was used to confirm the structure of these substances. This is the first report of the biosynthesis of GDP-d-glycero-alpha-d-manno-heptose in Gram-positive organisms. In addition, we propose a pathway for biosynthesis of the nucleotide-activated form of l-glycero-d-manno-heptose. << Less
J. Biol. Chem. 276:20935-20944(2001) [PubMed] [EuropePMC]
This publication is cited by 1 other entry.