2j5m

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{{STRUCTURE_2j5m| PDB=2j5m | SCENE= }}
{{STRUCTURE_2j5m| PDB=2j5m | SCENE= }}
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'''STRUCTURE OF CHLOROPEROXIDASE COMPOUND 0'''
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===STRUCTURE OF CHLOROPEROXIDASE COMPOUND 0===
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==Overview==
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We have determined the crystal structure of the chloroperoxidase (CPO) hydroperoxo reaction intermediate (CPO compound 0) at 1.75-A resolution. The intermediate was generated through controlled photoreduction of the CPO oxygen complex during x-ray data collection, which was monitored by recording of the crystal absorption spectra. Initially, the peroxo-anion species was formed and then protonated to yield compound 0. Quantum chemical calculations indicate that the peroxo-anion species is not stable and collapses instantaneously to compound 0. Compound 0 is present in the ferric low-spin doublet ground state and is characterized by a long O O bond length of 1.5 A and a Fe O bond distance of 1.8 A, which is also observed in the crystal structure.
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{{ABSTRACT_PUBMED_17190816}}
==About this Structure==
==About this Structure==
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[[Category: Peroxidase]]
[[Category: Peroxidase]]
[[Category: Pyrrolidone carboxylic acid]]
[[Category: Pyrrolidone carboxylic acid]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 08:22:33 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 19:01:37 2008''

Revision as of 16:01, 27 July 2008

Image:2j5m.png

Template:STRUCTURE 2j5m

STRUCTURE OF CHLOROPEROXIDASE COMPOUND 0

Template:ABSTRACT PUBMED 17190816

About this Structure

2J5M is a Single protein structure of sequence from Leptoxyphium fumago. Full crystallographic information is available from OCA.

Reference

Structure and quantum chemical characterization of chloroperoxidase compound 0, a common reaction intermediate of diverse heme enzymes., Kuhnel K, Derat E, Terner J, Shaik S, Schlichting I, Proc Natl Acad Sci U S A. 2007 Jan 2;104(1):99-104. Epub 2006 Dec 26. PMID:17190816

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