The Enzyme Database

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Accepted name: 3-vinyl bacteriochlorophyllide d 31-hydratase
Reaction: a 3-(1-hydroxyethyl) bacteriochlorophyllide d = a 3-vinyl bacteriochlorophyllide d + H2O
For diagram of reaction, click here
Other name(s): bchV (gene name)
Systematic name: 3-vinylbacteriochlorophyllide-d 31-hydro-lyase
Comments: This enzyme, found in green sulfur bacteria (Chlorobiaceae) and green flimentous bacteria (Chloroflexaceae), is involved in the biosynthesis of bacteriochlorophylls c, d and e. It acts in the direction of hydration, and the hydroxyl group that is formed is essential for the ability of the resulting bacteriochlorophylls to self-aggregate in the chlorosomes, unique light-harvesting antenna structures found in these organisms. The product is formed preferentially in the (R)-configuration.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Frigaard, N.U., Chew, A.G., Li, H., Maresca, J.A. and Bryant, D.A. Chlorobium tepidum: insights into the structure, physiology, and metabolism of a green sulfur bacterium derived from the complete genome sequence. Photosynth. Res. 78 (2003) 93–117. [DOI] [PMID: 16245042]
2.  Harada, J., Teramura, M., Mizoguchi, T., Tsukatani, Y., Yamamoto, K. and Tamiaki, H. Stereochemical conversion of C3-vinyl group to 1-hydroxyethyl group in bacteriochlorophyll c by the hydratases BchF and BchV: adaptation of green sulfur bacteria to limited-light environments. Mol. Microbiol. 98 (2015) 1184–1198. [DOI] [PMID: 26331578]
[EC created 2016]

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