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2bix

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[[Image:2bix.gif|left|200px]]
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{{Seed}}
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{{STRUCTURE_2bix| PDB=2bix | SCENE= }}
{{STRUCTURE_2bix| PDB=2bix | SCENE= }}
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'''CRYSTAL STRUCTURE OF APOCAROTENOID CLEAVAGE OXYGENASE FROM SYNECHOCYSTIS, FE-FREE APOENZYME'''
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===CRYSTAL STRUCTURE OF APOCAROTENOID CLEAVAGE OXYGENASE FROM SYNECHOCYSTIS, FE-FREE APOENZYME===
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==Overview==
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Enzymes that produce retinal and related apocarotenoids constitute a sequence- and thus structure-related family, a member of which was analyzed by x-ray diffraction. This member is an oxygenase and contains an Fe2+-4-His arrangement at the axis of a seven-bladed beta-propeller chain fold covered by a dome formed by six large loops. The Fe2+ is accessible through a long nonpolar tunnel that holds a carotenoid derivative in one of the crystals. On binding, three consecutive double bonds of this carotenoid changed from a straight all-trans to a cranked cis-trans-cis conformation. The remaining trans bond is located at the dioxygen-ligated Fe2+ and cleaved by oxygen.
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(as it appears on PubMed at http://www.pubmed.gov), where 15821095 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15821095}}
==About this Structure==
==About this Structure==
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[[Category: Oxygenase]]
[[Category: Oxygenase]]
[[Category: Retinal formation]]
[[Category: Retinal formation]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 20:21:15 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 06:14:30 2008''

Revision as of 03:14, 28 July 2008

Image:2bix.png

Template:STRUCTURE 2bix

CRYSTAL STRUCTURE OF APOCAROTENOID CLEAVAGE OXYGENASE FROM SYNECHOCYSTIS, FE-FREE APOENZYME

Template:ABSTRACT PUBMED 15821095

About this Structure

2BIX is a Single protein structure of sequence from Synechocystis sp.. Full crystallographic information is available from OCA.

Reference

The structure of a retinal-forming carotenoid oxygenase., Kloer DP, Ruch S, Al-Babili S, Beyer P, Schulz GE, Science. 2005 Apr 8;308(5719):267-9. PMID:15821095

Page seeded by OCA on Mon Jul 28 06:14:30 2008

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