Reaction: 71-hydroxychlorophyll a + 2 reduced ferredoxin + 2 H+ = chlorophyll a + 2 oxidized ferredoxin + H2O
For diagram of reaction click here
Glossary: 71-hydroxychlorophyll a = 7-hydroxymethyl-chlorophyll a
Other name(s): HCAR
Systematic name: 71-hydroxychlorophyll 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 (cf. EC 1.1.1.294, chlorophyll(ide) b reductase). It similarly reduces chlorophyllide a.
Links to other databases: BRENDA, EXPASY, KEGG, CAS registry number:
References:
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. [PMID: 21934147]