1h1o

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{{STRUCTURE_1h1o| PDB=1h1o | SCENE= }}
{{STRUCTURE_1h1o| PDB=1h1o | SCENE= }}
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'''ACIDITHIOBACILLUS FERROOXIDANS CYTOCHROME C4 STRUCTURE SUPPORTS A COMPLEX-INDUCED TUNING OF ELECTRON TRANSFER'''
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===ACIDITHIOBACILLUS FERROOXIDANS CYTOCHROME C4 STRUCTURE SUPPORTS A COMPLEX-INDUCED TUNING OF ELECTRON TRANSFER===
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==Overview==
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The study of electron transfer between the copper protein rusticyanin (RCy) and the c(4)-cytochrome CYC(41) of the acidophilic bacterium Acidithiobacillus ferrooxidans has evidenced a remarkable decrease of RCy's redox potential upon complex formation. The structure of the CYC(41) obtained at 2.2 A resolution highlighted a specific glutamate residue (E121) involved in zinc binding as potentially playing a central role in this effect, required for the electron transfer to occur. EPR and stopped-flow experiments confirmed the strong inhibitory effect of divalent cations on CYC(41):RCy complex formation. A docking analysis of the CYC(41) and RCy structure allows us to propose a detailed model for the complex-induced tuning of electron transfer in agreement with our experimental data, which could be representative of other copper proteins involved in electron transfer.
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{{ABSTRACT_PUBMED_12737820}}
==About this Structure==
==About this Structure==
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[[Category: Electron transfer]]
[[Category: Electron transfer]]
[[Category: Heme]]
[[Category: Heme]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 06:28:18 2008''

Revision as of 03:28, 1 July 2008

Image:1h1o.png

Template:STRUCTURE 1h1o

ACIDITHIOBACILLUS FERROOXIDANS CYTOCHROME C4 STRUCTURE SUPPORTS A COMPLEX-INDUCED TUNING OF ELECTRON TRANSFER

Template:ABSTRACT PUBMED 12737820

About this Structure

1H1O is a Single protein structure of sequence from Acidithiobacillus ferrooxidans. Full crystallographic information is available from OCA.

Reference

The structure of Acidithiobacillus ferrooxidans c(4)-cytochrome: a model for complex-induced electron transfer tuning., Abergel C, Nitschke W, Malarte G, Bruschi M, Claverie JM, Giudici-Orticoni MT, Structure. 2003 May;11(5):547-55. PMID:12737820

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