3chy

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[[Image:3chy.gif|left|200px]]
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{{STRUCTURE_3chy| PDB=3chy | SCENE= }}
{{STRUCTURE_3chy| PDB=3chy | SCENE= }}
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'''CRYSTAL STRUCTURE OF ESCHERICHIA COLI CHEY REFINED AT 1.7-ANGSTROM RESOLUTION'''
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===CRYSTAL STRUCTURE OF ESCHERICHIA COLI CHEY REFINED AT 1.7-ANGSTROM RESOLUTION===
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==Overview==
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The three-dimensional structure of wild-type CheY from Escherichia coli has been refined by stereochemically restrained least squares minimization to a crystallographic R-factor of 15.1% at 1.7-A resolution. The structure contains 1165 atoms, including all atoms of the protein, 147 water molecules, and three sulfate ions. The final model has root mean square deviations of 0.018 and 0.049 A from idealized bond lengths and angle distances, respectively. Seven amino acid side chains have been modeled in dual conformations. CheY folds as a compact (beta/alpha)5 globular protein, with the phosphorylation region contained in a cavity on one face of the molecule. This active site area is bordered by the carboxyl termini of the three central beta-strands, by alpha 1, and by the loop connecting beta 5 to alpha 5. The Lys-109 side chain of this loop extends into the active site by virtue of its cis peptide bond conformation preceding Pro-110. The epsilon-amino group of Lys-109 is in close bonding contact with the carboxyl group of Asp-57, the residue that is phosphorylated in the activation process of CheY. The details of the hydrogen bonding network in the phosphorylation region indicate that structural rearrangements must accompany the phosphorylation of Asp-57.
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The line below this paragraph, {{ABSTRACT_PUBMED_1869568}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 1869568 is the PubMed ID number.
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{{ABSTRACT_PUBMED_1869568}}
==About this Structure==
==About this Structure==
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[[Category: Volz, K.]]
[[Category: Volz, K.]]
[[Category: Signal transduction protein]]
[[Category: Signal transduction protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 21:47:28 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 09:03:59 2008''

Revision as of 06:04, 28 July 2008

Image:3chy.png

Template:STRUCTURE 3chy

CRYSTAL STRUCTURE OF ESCHERICHIA COLI CHEY REFINED AT 1.7-ANGSTROM RESOLUTION

Template:ABSTRACT PUBMED 1869568

About this Structure

3CHY is a Single protein structure of sequence from Escherichia coli. Full crystallographic information is available from OCA.

Reference

Crystal structure of Escherichia coli CheY refined at 1.7-A resolution., Volz K, Matsumura P, J Biol Chem. 1991 Aug 15;266(23):15511-9. PMID:1869568

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