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Article

Two cysteines, two histidines, and one methionine are ligands of a binuclear purple copper center.

The Journal of biological chemistry - 5 Aug 1993

Kelly M, Lappalainen P, Talbo G, Haltia T, van der Oost J, Saraste M

Abstract excerpt

Cytochrome c oxidase contains a copper center, CuA, which is involved in electron transfer from cytochrome c to the oxygen-reducing active site. This center is distinct from types 1, 2, and 3 copper sites and related only to a purple copper center in nitrous oxide reductase. At present it is not clear whether this site is mononuclear or is comprised of two copper atoms in a mixed valence (Cu(I)-Cu(II))...

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PMID: 8393874

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

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