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Escherichia coli K-12 substr. MG1655 Reaction: 2.7.7.70

Superclasses: Reactions Classified By Conversion Type Simple Reactions Chemical Reactions
Reactions Classified By Substrate Small-Molecule Reactions

EC Number: 2.7.7.70

Enzymes and Genes:
fused heptose 7-phosphate kinase/heptose 1-phosphate adenyltransferase Inferred from experiment : rfaE

In Pathway: ADP-L-glycero-β-D-manno-heptose biosynthesis

The reaction direction shown, that is, A + B ↔ C + D versus C + D ↔ A + B, is in accordance with the Enzyme Commission system.

Most BioCyc compounds have been protonated to a reference pH value of 7.3, and some reactions have been computationally balanced for hydrogen by adding free protons. Please see the PGDB Concepts Guide for more information.

Mass balance status: Balanced.

Enzyme Commission Primary Name: D-glycero-β-D-manno-heptose 1-phosphate adenylyltransferase

Enzyme Commission Synonyms: D-β-D-heptose 7-phosphate kinase/D-β-D-heptose 1-phosphate adenylyltransferase, D-glycero-D-manno-heptose-1β-phosphate adenylyltransferase, hldE (gene name), rfaE (gene name)

Enzyme Commission Summary:
The bifunctional protein hldE includes D-glycero-β-D-manno-heptose-7-phosphate kinase and D-glycero-β-D-manno-heptose 1-phosphate adenylyltransferase activity (cf. EC 2.7.1.167). The enzyme is involved in biosynthesis of ADP-L-glycero-&beta-D-manno-heptose, which is utilized for assembly of the lipopolysaccharide inner core in Gram-negative bacteria.

Citations: [Valvano00, Kneidinger02, Valvano02, Wang10a]

Gene-Reaction Schematic: ?

Relationship Links: BRENDA:EC:2.7.7.70 , ENZYME:EC:2.7.7.70 , IUBMB-ExplorEnz:EC:2.7.7.70


References

Kneidinger02: Kneidinger B, Marolda C, Graninger M, Zamyatina A, McArthur F, Kosma P, Valvano MA, Messner P (2002). "Biosynthesis pathway of ADP-L-glycero-beta-D-manno-heptose in Escherichia coli." J Bacteriol 184(2);363-9. PMID: 11751812

Valvano00: Valvano MA, Marolda CL, Bittner M, Glaskin-Clay M, Simon TL, Klena JD (2000). "The rfaE gene from Escherichia coli encodes a bifunctional protein involved in biosynthesis of the lipopolysaccharide core precursor ADP-L-glycero-D-manno-heptose." J Bacteriol 182(2);488-97. PMID: 10629197

Valvano02: Valvano MA, Messner P, Kosma P (2002). "Novel pathways for biosynthesis of nucleotide-activated glycero-manno-heptose precursors of bacterial glycoproteins and cell surface polysaccharides." Microbiology 148(Pt 7);1979-89. PMID: 12101286

Wang10a: Wang L, Huang H, Nguyen HH, Allen KN, Mariano PS, Dunaway-Mariano D (2010). "Divergence of biochemical function in the HAD superfamily: D-glycero-D-manno-heptose-1,7-bisphosphate phosphatase (GmhB)." Biochemistry 49(6);1072-81. PMID: 20050615


Report Errors or Provide Feedback
Please cite the following article in publications resulting from the use of EcoCyc: Nucleic Acids Research 41:D605-12 2013
Page generated by SRI International Pathway Tools version 18.5 on Mon Nov 24, 2014, BIOCYC13B.