Reaction: CDP-4-dehydro-3,6-dideoxy-D-glucose + NAD(P)+ + H2O = CDP-4-dehydro-6-deoxy-D-glucose + NAD(P)H + H+
For diagram click here.
Other name(s): CDP-4-keto-6-deoxyglucose reductase; cytidine diphospho-4-keto-6-deoxy-D-glucose reductase; cytidine diphosphate 4-keto-6-deoxy-D-glucose-3-dehydrogenase; CDP-4-keto-deoxy-glucose reductase; CDP-4-keto-6-deoxy-D-glucose-3-dehydrogenase system; NAD(P)H:CDP-4-keto-6-deoxy-D-glucose oxidoreductase
Systematic name: CDP-4-dehydro-3,6-dideoxy-D-glucose:NAD(P)+ 3-oxidoreductase
Comments: The enzyme consists of two proteins. One forms an enzyme-bound adduct of the CDP-4-dehydro-6-deoxyglucose with pyridoxamine phosphate, in which the 3-hydroxy group has been removed. The second catalyses the reduction of this adduct by NAD(P)H and release of the CDP-4-dehydro-3,6-dideoxy-D-glucose and pyridoxamine phosphate.
Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, CAS registry number: 37256-87-4
References:
1. Pape, H. and Strominger, J.L. Enzymatic synthesis of cytidine diphosphate 3,6-dideoxyhexoses. V. Partial purification of the two protein components required for introduction of the 3-deoxy group. J. Biol. Chem. 244 (1969) 3598-3604. [PMID: 4389672]
2. Rubenstein, P.A. and Strominger, J.L. Enzymatic synthesis of cytidine diphosphate 3,6-dideoxyhexoses. VII. Mechanistic roles of enzyme E1 and pyridoxamine 5'-phosphate in the formation of cytidine diphosphate-4-keto-3,6-dideoxy-D-glucose from cytidine diphosphate-4-keto-6-deoxy-D-glucose. J. Biol. Chem. 249 (1974) 3776-3781. [PMID: 4152100]
3. Liu, H.-W. and Thorson, J.S. Pathways and mechanisms in the biogenesis of novel deoxysugars by bacteria. Annu. Rev. Microbiol. 48 (1994) 223-256. [PMID: 7826006]