EC - 3,8-divinyl chlorophyllide a reductase

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IntEnz Enzyme Nomenclature


Accepted name:
3,8-divinyl chlorophyllide a reductase
Systematic name:
bacteriochlorophyllide-g:ferredoxin C-81-oxidoreductase




The enzyme, found only in bacteriochlorophyll b-producing bacteria, catalyses the introduction of a C-8 ethylidene group. The enzyme contains a [4Fe-4S] cluster, and structurally resembles the Fe protein/MoFe protein complex of nitrogenase. It is very similar to EC, chlorophyllide a reductase, and is composed of three subunits. Two of them form the catalytic component, while the third one functions as an ATP-dependent reductase component that catalyses the electron transfer from ferredoxin to the catalytic component.

Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , UniPathway
Structural data: CSA , EC2PDB


  1. Tsukatani, Y., Yamamoto, H., Harada, J., Yoshitomi, T., Nomata, J., Kasahara, M., Mizoguchi, T., Fujita, Y., Tamiaki, H.
    An unexpectedly branched biosynthetic pathway for bacteriochlorophyll b capable of absorbing near-infrared light.
    Sci Rep 3 : 1217 (2013). [PMID: 23386973]
  2. Tsukatani, Y., Harada, J., Nomata, J., Yamamoto, H., Fujita, Y., Mizoguchi, T., Tamiaki, H.
    Rhodobacter sphaeroides mutants overexpressing chlorophyllide a oxidoreductase of Blastochloris viridis elucidate functions of enzymes in late bacteriochlorophyll biosynthetic pathways.
    Sci Rep 5 : 9741 (2015). [PMID: 25978726]

[EC created 2016]