GDP-mannose 6-dehydrogenase
GDP-mannose 6-dehydrogenase | |||||||||
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Identifiers | |||||||||
EC no. | 1.1.1.132 | ||||||||
CAS no. | 37250-63-8 | ||||||||
Databases | |||||||||
IntEnz | IntEnz view | ||||||||
BRENDA | BRENDA entry | ||||||||
ExPASy | NiceZyme view | ||||||||
KEGG | KEGG entry | ||||||||
MetaCyc | metabolic pathway | ||||||||
PRIAM | profile | ||||||||
PDB structures | RCSB PDB PDBe PDBsum | ||||||||
Gene Ontology | AmiGO / QuickGO | ||||||||
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In enzymology, a GDP-mannose 6-dehydrogenase (EC 1.1.1.132) is an enzyme that catalyzes the chemical reaction
- GDP-D-mannose + 2 NAD+ + H2O GDP-D-mannuronate + 2 NADH + 2 H+
The 3 substrates of this enzyme are GDP-D-mannose, NAD+, and H2O, whereas its 3 products are GDP-D-mannuronate, NADH, and H+.
This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-OH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is GDP-D-mannose:NAD+ 6-oxidoreductase. Other names in common use include guanosine diphosphomannose dehydrogenase, GDP-mannose dehydrogenase, guanosine diphosphomannose dehydrogenase, and guanosine diphospho-D-mannose dehydrogenase. This enzyme participates in fructose and mannose metabolism.
This protein may use the morpheein model of allosteric regulation.[1]
Structural studies
As of late 2007, 3 structures have been solved for this class of enzymes, with PDB accession codes 1MFZ, 1MUU, and 1MV8.
References
- ^ T. Selwood; E. K. Jaffe (2011). "Dynamic dissociating homo-oligomers and the control of protein function". Arch. Biochem. Biophys. 519 (2): 131–43. doi:10.1016/j.abb.2011.11.020. PMC 3298769. PMID 22182754.
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- Preiss J (1964). "Sugar nucleotide reaction in Arthrobacter. II. Biosynthesis of guanosine diphosphomannuronate". J. Biol. Chem. 239: 3127–3132. PMID 14245351.