IUBMB Enzyme Nomenclature


Accepted name: dTDP-3,4-didehydro-2,6-dideoxy-α-D-glucose 3-reductase

Reaction: dTDP-4-dehydro-2,6-dideoxy-α-D-glucose + NADP+ = dTDP-3,4-didehydro-2,6-dideoxy-α-D-glucose + NADPH + H+

For diagram of reaction click here.

Glossary: dTDP-4-dehydro-2,6-dideoxy-α-D-glucose = dTDP-2,6-dideoxy-α-D-threo-hexopyranos-4-ulose
dTDP-3,4-didehydro-2,6-dideoxy-α-D-glucose = thymidine 5'-[(2R,6R)-6-methyl-4,5-dioxotetrahydro-2H-pyran-2-yl] diphosphate

Other name(s): KijD10; dTDP-4-keto-2,6-dideoxy-D-glucose 3-oxidoreductase; dTDP-4-dehydro-2,6-dideoxy-α-D-glucose 3-oxidoreductase

Systematic name: dTDP-4-dehydro-2,6-dideoxy-α-D-glucose:NADP+ 3-oxidoreductase

Comments: The enzyme is involved in the biosynthesis of several deoxysugars, including L-digitoxose, L- and D-olivose, L-oliose, D-mycarose and forosamine.

Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB, CAS registry number:


1. Aguirrezabalaga, I., Olano, C., Allende, N., Rodriguez, L., Brana, A.F., Mendez, C. and Salas, J.A. Identification and expression of genes involved in biosynthesis of L-oleandrose and its intermediate L-olivose in the oleandomycin producer Streptomyces antibioticus. Antimicrob. Agents Chemother. 44 (2000) 1266-1275. [PMID: 10770761]

2. Wang, L., White, R.L. and Vining, L.C. Biosynthesis of the dideoxysugar component of jadomycin B: genes in the jad cluster of Streptomyces venezuelae ISP5230 for L-digitoxose assembly and transfer to the angucycline aglycone. Microbiology 148 (2002) 1091-1103. [PMID: 11932454]

3. Hong, L., Zhao, Z., Melancon, C.E., 3rd, Zhang, H. and Liu, H.W. In vitro characterization of the enzymes involved in TDP-D-forosamine biosynthesis in the spinosyn pathway of Saccharopolyspora spinosa. J. Am. Chem. Soc. 130 (2008) 4954-4967. [PMID: 18345667]

4. Kubiak, R.L. and Holden, H.M. Combined structural and functional investigation of a C-3''-ketoreductase involved in the biosynthesis of dTDP-L-digitoxose. Biochemistry 50 (2011) 5905-5917. [PMID: 21598943]

[EC created 2015]

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