The Enzyme Database

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Accepted name: 7-hydroxymethyl chlorophyll a reductase
Reaction: chlorophyll a + H2O + 2 oxidized ferredoxin = 71-hydroxychlorophyll a + 2 reduced ferredoxin + 2 H+
For diagram of the chlorophyll cycle, click here
Glossary: 71-hydroxychlorophyll a = 7-hydroxymethyl-chlorophyll a
Other name(s): HCAR; 71-hydroxychlorophyll-a:ferredoxin oxidoreductase
Systematic name: chlorophyll-a:ferredoxin oxidoreductase
Comments: Contains FAD and an iron-sulfur center. This enzyme, which is present in plant chloroplasts, carries out the second step in the conversion of chlorophyll b to chlorophyll a. It similarly reduces chlorophyllide a.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB
1.  Meguro, M., Ito, H., Takabayashi, A., Tanaka, R. and Tanaka, A. Identification of the 7-hydroxymethyl chlorophyll a reductase of the chlorophyll cycle in Arabidopsis. Plant Cell 23 (2011) 3442–3453. [DOI] [PMID: 21934147]
[EC created 2011]

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