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1qn2

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[[Image:1qn2.jpg|left|200px]]
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{{STRUCTURE_1qn2| PDB=1qn2 | SCENE= }}
{{STRUCTURE_1qn2| PDB=1qn2 | SCENE= }}
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'''CYTOCHROME CH FROM METHYLOBACTERIUM EXTORQUENS'''
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===CYTOCHROME CH FROM METHYLOBACTERIUM EXTORQUENS===
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==Overview==
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Cytochrome cH is the electron donor to the oxidase in methylotrophic bacteria. Its amino acid sequence suggests that it is a typical Class 1 cytochrome c, but some features of the sequence indicated that its structure might be of special interest. The structure of oxidized cytochrome cH has been solved to 2.0 A resolution by X-ray diffraction. It has the classical tertiary structure of the Class 1 cytochromes c but bears a closer gross resemblance to mitochondrial cytochrome c than to the bacterial cytochrome c2. The left-hand side of the haem cleft is unique; in particular, it is highly hydrophobic, the usual water is absent, and the "conserved" Tyr67 is replaced by tryptophan. A number of features of the structure demonstrate that the usual hydrogen bonding network involving water in the haem channel is not essential and that other mechanisms may exist for modulation of redox potentials in this cytochrome.
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(as it appears on PubMed at http://www.pubmed.gov), where 10386873 is the PubMed ID number.
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{{ABSTRACT_PUBMED_10386873}}
==About this Structure==
==About this Structure==
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[[Category: Cytochrome c]]
[[Category: Cytochrome c]]
[[Category: Electron transport]]
[[Category: Electron transport]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 06:28:19 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 08:46:50 2008''

Revision as of 05:46, 28 July 2008

Image:1qn2.png

Template:STRUCTURE 1qn2

CYTOCHROME CH FROM METHYLOBACTERIUM EXTORQUENS

Template:ABSTRACT PUBMED 10386873

About this Structure

1QN2 is a Single protein structure of sequence from Methylobacterium extorquens. Full crystallographic information is available from OCA.

Reference

The molecular structure of an unusual cytochrome c2 determined at 2.0 A; the cytochrome cH from Methylobacterium extorquens., Read J, Gill R, Dales SL, Cooper JB, Wood SP, Anthony C, Protein Sci. 1999 Jun;8(6):1232-40. PMID:10386873

Page seeded by OCA on Mon Jul 28 08:46:50 2008

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