1sp3

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(New page: 200px<br /><applet load="1sp3" size="450" color="white" frame="true" align="right" spinBox="true" caption="1sp3, resolution 2.20&Aring;" /> '''Crystal structure of...)
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Revision as of 22:48, 24 November 2007

Image:1sp3.jpg

1sp3, resolution 2.20Å

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Crystal structure of octaheme cytochrome c from Shewanella oneidensis

Overview

We have isolated a soluble cytochrome from Shewanella oneidensis that, contains eight covalently attached heme groups and determined its crystal, structure. One of these hemes exhibits novel ligation of the iron atom by, the epsilon-amino group of a lysine residue, despite its attachment via a, typical CXXCH motif. This heme is most likely the active site for, tetrathionate reduction, a reaction catalyzed efficiently by this enzyme.

About this Structure

1SP3 is a Single protein structure of sequence from Bacteria with SCN and HEM as ligands. Full crystallographic information is available from OCA.

Reference

Octaheme tetrathionate reductase is a respiratory enzyme with novel heme ligation., Mowat CG, Rothery E, Miles CS, McIver L, Doherty MK, Drewette K, Taylor P, Walkinshaw MD, Chapman SK, Reid GA, Nat Struct Mol Biol. 2004 Oct;11(10):1023-4. Epub 2004 Sep 7. PMID:15361860

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