1tmy
From Proteopedia
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|ACTIVITY= | |ACTIVITY= | ||
|GENE= CHEY ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2336 Thermotoga maritima]) | |GENE= CHEY ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=2336 Thermotoga maritima]) | ||
| + | |DOMAIN= | ||
| + | |RELATEDENTRY= | ||
| + | |RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1tmy FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1tmy OCA], [http://www.ebi.ac.uk/pdbsum/1tmy PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1tmy RCSB]</span> | ||
}} | }} | ||
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[[Category: signal transduction]] | [[Category: signal transduction]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 30 23:58:19 2008'' |
Revision as of 20:58, 30 March 2008
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| , resolution 1.9Å | |||||||
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| Sites: | |||||||
| Gene: | CHEY (Thermotoga maritima) | ||||||
| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
CHEY FROM THERMOTOGA MARITIMA (APO-I)
Overview
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.
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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