The Enzyme Database

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Accepted name: dTDP-4-dehydro-6-deoxy-α-D-gulose 4-ketoreductase
Reaction: dTDP-6-deoxy-α-D-allose + NAD(P)+ = dTDP-4-dehydro-6-deoxy-α-D-gulose + NAD(P)H + H+
For diagram of dTDP-6-deoxy-α-D-allose biosynthesis, click here and for diagram of dTDP-6-deoxyhexose biosynthesis, click here
Glossary: dTDP-4-dehydro-6-deoxy-α-D-gulose = dTDP-4-dehydro-6-deoxy-α-D-allose
Other name(s): dTDP-4-dehydro-6-deoxygulose reductase; tylD (gene name); gerKI (gene name); chmD (gene name); mydI (gene name)
Systematic name: dTDP-6-deoxy-α-D-allose:NAD(P)+ oxidoreductase
Comments: The enzyme forms an activated deoxy-α-D-allose, which is converted to mycinose after attachment to the aglycones of several macrolide antibiotics, including tylosin, chalcomycin, dihydrochalcomycin, and mycinamicin II.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Bate, N. and Cundliffe, E. The mycinose-biosynthetic genes of Streptomyces fradiae, producer of tylosin. J Ind Microbiol Biotechnol 23 (1999) 118–122. [PMID: 10510490]
2.  Anzai, Y., Saito, N., Tanaka, M., Kinoshita, K., Koyama, Y. and Kato, F. Organization of the biosynthetic gene cluster for the polyketide macrolide mycinamicin in Micromonospora griseorubida. FEMS Microbiol. Lett. 218 (2003) 135–141. [DOI] [PMID: 12583909]
3.  Thuy, T.T., Liou, K., Oh, T.J., Kim, D.H., Nam, D.H., Yoo, J.C. and Sohng, J.K. Biosynthesis of dTDP-6-deoxy-β-D-allose, biochemical characterization of dTDP-4-keto-6-deoxyglucose reductase (GerKI) from Streptomyces sp. KCTC 0041BP. Glycobiology 17 (2007) 119–126. [DOI] [PMID: 17053005]
4.  Kubiak, R.L., Phillips, R.K., Zmudka, M.W., Ahn, M.R., Maka, E.M., Pyeatt, G.L., Roggensack, S.J. and Holden, H.M. Structural and functional studies on a 3′-epimerase involved in the biosynthesis of dTDP-6-deoxy-D-allose. Biochemistry 51 (2012) 9375–9383. [DOI] [PMID: 23116432]
[EC created 2013]

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