2eim Summary

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Zinc ion binding structure of bovine heart cytochrome C oxidase in the fully reduced state

The structure was published by Muramoto, K., Hirata, K., Shinzawa-Itoh, K., et al., Aoyama, H., Tsukihara, T., and Yoshikawa, S., in 2007 in a paper entitled "A histidine residue acting as a controlling site for dioxygen reduction and proton pumping by cytochrome c oxidase" (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.6 Å and deposited in 2007.

The experimental data on which the structure is based was not deposited.

This entry contains 108 copies of 13 unique biopolymers (complete list).

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The most likely quaternary structure is a 26meric assembly.


The are more than 5 unique protein polymers in this entry. More information is available on the Uniprot cross references page.

This entry contains 13 unique UniProt proteins:

UniProt accession Name Organism PDB
P00396 (1 - 514) Cytochrome c oxidase subunit 1 Bos taurus
P68530 (1 - 227) Cytochrome c oxidase subunit 2 Bos taurus
P00415 (1 - 261) Cytochrome c oxidase subunit 3 Bos taurus
P00423 (23 - 169) Cytochrome c oxidase subunit 4 isoform 1 Bos taurus
P00426 (44 - 152) Cytochrome c oxidase polypeptide Va Bos taurus
P00428 (32 - 129) Cytochrome c oxidase polypeptide Vb Bos taurus
P07471 (13 - 97) Cytochrome c oxidase polypeptide VIa-heart Bos taurus
P00429 (2 - 86) Cytochrome c oxidase subunit VIb isoform 1 Bos taurus
P04038 (2 - 74) Cytochrome c oxidase polypeptide VIc Bos taurus
P07470 (22 - 80) Cytochrome c oxidase polypeptide VIIa-heart Bos taurus
P13183 (25 - 80) Cytochrome c oxidase polypeptide VIIb Bos taurus
P00430 (17 - 63) Cytochrome c oxidase polypeptide VIIc Bos taurus
P10175 (25 - 70) Cytochrome c oxidase polypeptide VIII-heart Bos taurus

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