Encodes a bimodular enzyme comprising an integral domain homologous to the catalytic subunit of mammalian vitamin K epoxide reductase (VKORC1, EC 1.1.4.1) that is fused to a soluble thioredoxin-like moiety. Using yeast microsomes as a recombinant system, it was shown that the VKORC1 domain of At4g35760 functions as a stringent naphthoquinone reductase, and that its reduced Trx-like partner can serve as its electron donor. Located in plastid. Required for the assembly of photosystem II. Can catalyze disulfide bond formation in vitro.
The VKORC1 domain of At4g35760 functions as a stringent naphthoquinone reductase, and that its reduced thioredoxin-like partner can serve as its electron donor.
characterization of protein encoded by At4g35760 as disulfide bond oxidoreductase with 2 distinct domains (membrane domain homologous to catalytic subunit of VKOR and soluble DsbA-like domain) with protein sorting signal that targets to thylakoids
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