| EC |
1.3.7.14 |
| Accepted name: |
3,8-divinyl chlorophyllide a reductase |
| Reaction: |
bacteriochlorophyllide g + 2 oxidized ferredoxin [iron-sulfur] cluster + ADP + phosphate = 3,8-divinyl chlorophyllide a + 2 reduced ferredoxin [iron-sulfur] cluster + ATP + H2O + 2 H+ |
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For diagram of bacteriochlorophllide g biosynthesis, click here |
| Systematic name: |
bacteriochlorophyllide-g:ferredoxin C-81-oxidoreductase |
| Comments: |
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 1.3.7.15, 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: |
BRENDA, EXPASY, KEGG, MetaCyc |
| References: |
| 1. |
Tsukatani, Y., Yamamoto, H., Harada, J., Yoshitomi, T., Nomata, J., Kasahara, M., Mizoguchi, T., Fujita, Y. and Tamiaki, H. An unexpectedly branched biosynthetic pathway for bacteriochlorophyll b capable of absorbing near-infrared light. Sci. Rep. 3:1217 (2013). [DOI] [PMID: 23386973] |
| 2. |
Tsukatani, Y., Harada, J., Nomata, J., Yamamoto, H., Fujita, Y., Mizoguchi, T. and 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). [DOI] [PMID: 25978726] |
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| [EC 1.3.7.14 created 2016] |
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