1be3
From Proteopedia
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'''CYTOCHROME BC1 COMPLEX FROM BOVINE''' | '''CYTOCHROME BC1 COMPLEX FROM BOVINE''' | ||
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[[Category: Okada, K.]] | [[Category: Okada, K.]] | ||
[[Category: Ramaswamy, S.]] | [[Category: Ramaswamy, S.]] | ||
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- | [[Category: | + | [[Category: Electron transport]] |
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- | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 11:23:46 2008'' | |
- | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + |
Revision as of 08:23, 2 May 2008
CYTOCHROME BC1 COMPLEX FROM BOVINE
Overview
Mitochondrial cytochrome bc1 complex performs two functions: It is a respiratory multienzyme complex and it recognizes a mitochondrial targeting presequence. Refined crystal structures of the 11-subunit bc1 complex from bovine heart reveal full views of this bifunctional enzyme. The "Rieske" iron-sulfur protein subunit shows significant conformational changes in different crystal forms, suggesting a new electron transport mechanism of the enzyme. The mitochondrial targeting presequence of the "Rieske" protein (subunit 9) is lodged between the two "core" subunits at the matrix side of the complex. These "core" subunits are related to the matrix processing peptidase, and the structure unveils how mitochondrial targeting presequences are recognized.
About this Structure
1BE3 is a Protein complex structure of sequences from Bos taurus. Full crystallographic information is available from OCA.
Reference
Complete structure of the 11-subunit bovine mitochondrial cytochrome bc1 complex., Iwata S, Lee JW, Okada K, Lee JK, Iwata M, Rasmussen B, Link TA, Ramaswamy S, Jap BK, Science. 1998 Jul 3;281(5373):64-71. PMID:9651245 Page seeded by OCA on Fri May 2 11:23:46 2008