Vitamin-K-epoxide reductase (warfarin-insensitive)

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vitamin-K-epoxide reductase (warfarin-insensitive)
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ExPASy
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KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
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In

enzymology, a vitamin-K-epoxide reductase (warfarin-insensitive) (EC 1.17.4.5) is an enzyme that catalyzes the chemical reaction

3-hydroxy-2-methyl-3-phytyl-2,3-dihydronaphthoquinone + oxidized dithiothreitol 2,3-epoxy-2,3-dihydro-2-methyl-3-phytyl-1,4-naphthoquinone + 1,4-dithiothreitol

Thus, the two

1,4-dithiothreitol
.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH or CH2 groups of donor with a disulfide as acceptor. The systematic name of this enzyme class is 3-hydroxy-2-methyl-3-phytyl-2,3-dihydronaphthoquinone:oxidized-dithi othreitol oxidoreductase.

References

  • Mukharji I, Silverman RB (1985). "Purification of a vitamin K epoxide reductase that catalyzes conversion of vitamin K 2,3-epoxide to 3-hydroxy-2-methyl-3-phytyl-2,3-dihydronaphthoquinone". Proc. Natl. Acad. Sci. U.S.A. 82 (9): 2713–7.
    PMID 3857611
    .