Divinyl chlorophyllide a 8-vinyl-reductase

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In enzymology, a divinyl chlorophyllide a 8-vinyl-reductase (EC 1.3.1.75) is an enzyme that catalyzes the chemical reaction

chlorophyllide a + NADP⁺ $\rightleftharpoons$ divinyl chlorophyllide a + NADPH + H⁺

Thus, the two substrates of this enzyme are chlorophyllide a and NADP⁺, whereas its 3 products are divinyl chlorophyllide a, NADPH, and H⁺.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-CH group of donor with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is chlorophyllide-a:NADP+ oxidoreductase. Other names in common use include [4-vinyl]chlorophyllide a reductase, and 4VCR. This enzyme participates in porphyrin and chlorophyll metabolism.

[edit] References

IUBMB entry for 1.3.1.75
BRENDA references for 1.3.1.75 (Recommended.)
PubMed references for 1.3.1.75
PubMed Central references for 1.3.1.75
Google Scholar references for 1.3.1.75
Tripathy BC and Rebeiz CA (1988). "Chloroplast biogenesis 60. Conversion of divinyl protochlorophyllide to monovinyl protochlorophyllide in green(ing) barley, a dark monovinyl/light divinyl plant species". Plant Physiol. 87: 89–94.
Parham R, Rebeiz CA (1992). "Chloroplast biogenesis: [4-vinyl] chlorophyllide a reductase is a divinyl chlorophyllide a-specific, NADPH-dependent enzyme". Biochemistry. 31: 8460–4. doi:10.1021/bi00151a011. PMID 1390630.
Parham R, Rebeiz CA (1995). "Chloroplast biogenesis 72: a [4-vinyl]chlorophyllide a reductase assay using divinyl chlorophyllide a as an exogenous substrate". Anal. Biochem. 231: 164–9. doi:10.1006/abio.1995.1516. PMID 8678296.
Kolossov VL, Rebeiz CA (2001). "Chloroplast biogenesis 84: solubilization and partial purification of membrane-bound [4-vinyl]chlorophyllide a reductase from etiolated barley leaves". Anal. Biochem. 295: 214–9. doi:10.1006/abio.2001.5195. PMID 11488624.