Ascorbate ferrireductase (transmembrane)

Definition:

EC Tree > 7 Translocases > 7.2 Catalysing the translocation of inorganic cations > 7.2.1 Linked to oxidoreductase reactions > 7.2.1.3 ascorbate ferrireductase (transmembrane)
Ascorbate ferrireductase (transmembrane, CybrD/Dcytb) is a di-heme cytochrome that transfers electrons across a single membrane, e.g. the enterocyte outer membrane or the plant vacuolar tonoplast; it reduces hexacyanoferrate(III) and other ferric chelates. It is found in viruses and cellular organisms. Structurally it is a di-heme b-type ferrireductase.

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