The Enzyme Database

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EC 2.5.1.135     
Accepted name: validamine 7-phosphate valienyltransferase
Reaction: GDP-valienol + validamine 7-phosphate = validoxylamine A 7′-phosphate + GDP
For diagram of validamycin biosynthesis, click here
Glossary: valienol = (1S,2S,3S,4R)-5-(hydroxymethyl)cyclohex-5-ene-1,2,3,4-tetrol
validamine = (1R,2S,3S,4S,6R)-4-amino-6-(hydroxymethyl)cyclohexane-1,2,3-triol
Other name(s): vldE (gene name); valL (gene name)
Systematic name: GDP-valienol:validamine 7-phosphate valienyltransferase
Comments: The enzyme, characterized from several Streptomyces strains, is involved in the biosynthesis of the antifungal agent validamycin A.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
References:
1.  Asamizu, S., Yang, J., Almabruk, K.H. and Mahmud, T. Pseudoglycosyltransferase catalyzes nonglycosidic C-N coupling in validamycin a biosynthesis. J. Am. Chem. Soc. 133 (2011) 12124–12135. [PMID: 21766819]
2.  Zheng, L., Zhou, X., Zhang, H., Ji, X., Li, L., Huang, L., Bai, L. and Zhang, H. Structural and functional analysis of validoxylamine A 7′-phosphate synthase ValL involved in validamycin A biosynthesis. PLoS One 7:e32033 (2012). [PMID: 22384130]
3.  Cavalier, M.C., Yim, Y.S., Asamizu, S., Neau, D., Almabruk, K.H., Mahmud, T. and Lee, Y.H. Mechanistic insights into validoxylamine A 7′-phosphate synthesis by VldE using the structure of the entire product complex. PLoS One 7:e44934 (2012). [PMID: 23028689]
[EC 2.5.1.135 created 2016]
 
 


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