2occ: Difference between revisions

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[[Image:2occ.gif|left|200px]]
{{Seed}}
[[Image:2occ.png|left|200px]]


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{{STRUCTURE_2occ|  PDB=2occ  |  SCENE=  }}  
{{STRUCTURE_2occ|  PDB=2occ  |  SCENE=  }}  


'''BOVINE HEART CYTOCHROME C OXIDASE AT THE FULLY OXIDIZED STATE'''
===BOVINE HEART CYTOCHROME C OXIDASE AT THE FULLY OXIDIZED STATE===




==Overview==
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Crystal structures of bovine heart cytochrome c oxidase in the fully oxidized, fully reduced, azide-bound, and carbon monoxide-bound states were determined at 2.30, 2.35, 2.9, and 2.8 angstrom resolution, respectively. An aspartate residue apart from the O2 reduction site exchanges its effective accessibility to the matrix aqueous phase for one to the cytosolic phase concomitantly with a significant decrease in the pK of its carboxyl group, on reduction of the metal sites. The movement indicates the aspartate as the proton pumping site. A tyrosine acidified by a covalently linked imidazole nitrogen is a possible proton donor for the O2 reduction by the enzyme.
The line below this paragraph, {{ABSTRACT_PUBMED_9624044}}, adds the Publication Abstract to the page
(as it appears on PubMed at http://www.pubmed.gov), where 9624044 is the PubMed ID number.
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{{ABSTRACT_PUBMED_9624044}}


==About this Structure==
==About this Structure==
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[[Category: Cytochrome c oxidase]]
[[Category: Cytochrome c oxidase]]
[[Category: Oxidoreductase]]
[[Category: Oxidoreductase]]
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