1qle: Difference between revisions

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[[Image:1qle.jpg|left|200px]]
[[Image:1qle.png|left|200px]]


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==Overview==
{{ABSTRACT_10559205}}
Cytochrome c oxidase catalyzes the reduction of oxygen to water. This process is accompanied by the vectorial transport of protons across the mitochondrial or bacterial membrane ("proton pumping"). The mechanism of proton pumping is still a matter of debate. Many proposed mechanisms require structural changes during the reaction cycle of cytochrome c oxidase. Therefore, the structure of the cytochrome c oxidase was determined in the completely oxidized and in the completely reduced states at a temperature of 100 K. No ligand exchanges or other major structural changes upon reduction of the cytochrome c oxidase from Paracoccus denitrificans were observed. The three histidine Cu(B) ligands are well defined in the oxidized and in the reduced states. These results are hardly compatible with the "histidine cycle" mechanisms formulated previously.


==About this Structure==
==About this Structure==
1QLE is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [http://en.wikipedia.org/wiki/Paracoccus_denitrificans Paracoccus denitrificans]. The following page contains interesting information on the relation of 1QLE with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb5_1.html Cytochrome c Oxidase]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QLE OCA].  
1QLE is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus] and [http://en.wikipedia.org/wiki/Paracoccus_denitrificans Paracoccus denitrificans]. The following page contains interesting information on the relation of 1QLE with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb5_1.html Cytochrome c Oxidase]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1QLE OCA].  
==Reference==
The cytochrome c oxidase from Paracoccus denitrificans does not change the metal center ligation upon reduction., Harrenga A, Michel H, J Biol Chem. 1999 Nov 19;274(47):33296-9. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10559205 10559205]
[[Category: Cytochrome c Oxidase]]
[[Category: Cytochrome c Oxidase]]
[[Category: Cytochrome-c oxidase]]
[[Category: Cytochrome-c oxidase]]
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[[Category: Electron transport]]
[[Category: Electron transport]]
[[Category: Transmembrane]]
[[Category: Transmembrane]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 06:24:48 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Jun 26 17:52:17 2008''

Revision as of 14:52, 26 June 2008

File:1qle.png

Template:STRUCTURE 1qle

CRYO-STRUCTURE OF THE PARACOCCUS DENITRIFICANS FOUR-SUBUNIT CYTOCHROME C OXIDASE IN THE COMPLETELY OXIDIZED STATE COMPLEXED WITH AN ANTIBODY FV FRAGMENT


Template:ABSTRACT 10559205

About this Structure

1QLE is a Protein complex structure of sequences from Mus musculus and Paracoccus denitrificans. The following page contains interesting information on the relation of 1QLE with [Cytochrome c Oxidase]. Full crystallographic information is available from OCA.

Page seeded by OCA on Thu Jun 26 17:52:17 2008

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