Chlorophyllide a oxidoreductase Preferentially Catalyzes 8‐Vinyl Reduction over B‐Ring Reduction of 8‐Vinyl Chlorophyllide a in the Late Steps of Bacteriochlorophyll Biosynthesis

@article{Yamamoto2020ChlorophyllideAO,
  title={Chlorophyllide a oxidoreductase Preferentially Catalyzes 8‐Vinyl Reduction over B‐Ring Reduction of 8‐Vinyl Chlorophyllide a in the Late Steps of Bacteriochlorophyll Biosynthesis},
  author={Haruki Yamamoto and T. Mizoguchi and Y. Tsukatani and H. Tamiaki and G. Kurisu and Y. Fujita},
  journal={ChemBioChem},
  year={2020},
  volume={21}
}
Bacteriochlorophyll a (BChl) is an essential pigment for anoxygenic photosynthesis. In late steps of the BChl biosynthesis of Rhodobacter capsulatus, the C8 vinyl group and C7=C8 double bond of 8‐vinyl chlorophyllide a (8 V‐Chlide) are reduced by a C8 vinyl reductase (8VR), BciA, and a nitrogenase‐like enzyme, chlorophyllide a oxidoreductase (COR), respectively, to produce 3‐vinyl‐bacteriochlorphyllide a. Recently, we discovered 8VR activity in COR. However, the kinetic parameters of the COR… Expand

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