1mzb: Difference between revisions

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[[Image:1mzb.jpg|left|200px]]
{{Seed}}
[[Image:1mzb.png|left|200px]]


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{{STRUCTURE_1mzb|  PDB=1mzb  |  SCENE=  }}  
{{STRUCTURE_1mzb|  PDB=1mzb  |  SCENE=  }}  


'''Ferric uptake regulator'''
===Ferric uptake regulator===




==Overview==
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Iron is an essential element for almost all organisms, although an overload of this element results in toxicity because of the formation of hydroxyl radicals. Consequently, most living entities have developed sophisticated mechanisms to control their intracellular iron concentration. In many bacteria, including the opportunistic pathogen Pseudomonas aeruginosa, this task is performed by the ferric uptake regulator (Fur). Fur controls a wide variety of basic physiological processes including iron uptake systems and the expression of exotoxin A. Here, we present the first crystal structure of Fur from P. aeruginosa in complex with Zn2+ determined at a resolution of 1.8 A. Furthermore, X-ray absorption spectroscopic measurements and microPIXE analysis were performed in order to characterize the distinct zinc and iron binding sites in solution. The combination of these complementary techniques enables us to present a model for the activation and DNA binding of the Fur protein.
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{{ABSTRACT_PUBMED_12581348}}


==About this Structure==
==About this Structure==
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[[Category: Ferric uptake regulator]]
[[Category: Ferric uptake regulator]]
[[Category: Iron]]
[[Category: Iron]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 03:19:04 2008''

Revision as of 00:19, 29 July 2008

File:1mzb.png

Template:STRUCTURE 1mzb

Ferric uptake regulator

Template:ABSTRACT PUBMED 12581348

About this Structure

1MZB is a Single protein structure of sequence from Pseudomonas aeruginosa. Full crystallographic information is available from OCA.

Reference

Architecture of a protein central to iron homeostasis: crystal structure and spectroscopic analysis of the ferric uptake regulator., Pohl E, Haller JC, Mijovilovich A, Meyer-Klaucke W, Garman E, Vasil ML, Mol Microbiol. 2003 Feb;47(4):903-15. PMID:12581348

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