About: Cytochrome d

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Cytochrome d, previously known as cytochrome a2, is a name for all cytochromes (electron-transporting heme proteins) that contain heme D as a cofactor. Two unrelated classes of cytochrome d are known: Cytochrome bd, an enzyme that generates a charge across the membrane so that protons will move, and cytochrome cd1 (NirS; SCOP b.70.2), a nitrite reductase.

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  • Cytochrome d, previously known as cytochrome a2, is a name for all cytochromes (electron-transporting heme proteins) that contain heme D as a cofactor. Two unrelated classes of cytochrome d are known: Cytochrome bd, an enzyme that generates a charge across the membrane so that protons will move, and cytochrome cd1 (NirS; SCOP b.70.2), a nitrite reductase. Cytochrome bd is found in plenty of aerobic bacteria, especially when it has grown with a limited oxygen supply. Compared to other terminal oxidases, it is notable for its high oxygen affinity and resistance to cyanide poisoning. It has a group of very similar relatives that do not use heme D, known as cyanide insensitive oxidases (CIOs). (en)
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  • 7.1.1.7
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  • Predicted structure of E. coli Cytochrome bd-1 (en)
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  • 7.100000 (xsd:double)
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  • Ubiquinol oxidase (en)
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  • Cytochrome d, previously known as cytochrome a2, is a name for all cytochromes (electron-transporting heme proteins) that contain heme D as a cofactor. Two unrelated classes of cytochrome d are known: Cytochrome bd, an enzyme that generates a charge across the membrane so that protons will move, and cytochrome cd1 (NirS; SCOP b.70.2), a nitrite reductase. (en)
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  • Cytochrome d (en)
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  • Ubiquinol oxidase (electrogenic, proton-motive force generating; Cytochrome bd) (en)
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