1tmy

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[[Image:1tmy.gif|left|200px]]
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{{STRUCTURE_1tmy| PDB=1tmy | SCENE= }}
{{STRUCTURE_1tmy| PDB=1tmy | SCENE= }}
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'''CHEY FROM THERMOTOGA MARITIMA (APO-I)'''
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===CHEY FROM THERMOTOGA MARITIMA (APO-I)===
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==Overview==
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The crystal structure of CheY protein from Thermotoga maritima has been determined in four crystal forms with and without Mg++ bound, at up to 1.9 A resolution. Structural comparisons with CheY from Escherichia coli shows substantial similarity in their folds, with some concerted changes propagating away from the active site that suggest how phosphorylated CheY, a signal transduction protein in bacterial chemotaxis, is recognized by its targets. A highly conserved segment of the protein (the "y-turn loop," residues 55-61), previously suggested to be a rigid recognition determinant, is for the first time seen in two alternative conformations in the different crystal structures. Although CheY from Thermotoga has much higher thermal stability than its mesophilic counterparts, comparison of structural features previously proposed to enhance thermostability such as hydrogen bonds, ion pairs, compactness, and hydrophobic surface burial would not suggest it to be so.
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(as it appears on PubMed at http://www.pubmed.gov), where 9521117 is the PubMed ID number.
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{{ABSTRACT_PUBMED_9521117}}
==About this Structure==
==About this Structure==
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[[Category: Phosphoryl transfer]]
[[Category: Phosphoryl transfer]]
[[Category: Signal transduction]]
[[Category: Signal transduction]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 10:08:34 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 20:53:24 2008''

Revision as of 17:53, 27 July 2008

Image:1tmy.png

Template:STRUCTURE 1tmy

CHEY FROM THERMOTOGA MARITIMA (APO-I)

Template:ABSTRACT PUBMED 9521117

About this Structure

1TMY is a Single protein structure of sequence from Thermotoga maritima. Full crystallographic information is available from OCA.

Reference

Crystal structures of CheY from Thermotoga maritima do not support conventional explanations for the structural basis of enhanced thermostability., Usher KC, de la Cruz AF, Dahlquist FW, Swanson RV, Simon MI, Remington SJ, Protein Sci. 1998 Feb;7(2):403-12. PMID:9521117

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