1jal

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{{STRUCTURE_1jal| PDB=1jal | SCENE= }}
{{STRUCTURE_1jal| PDB=1jal | SCENE= }}
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'''YCHF PROTEIN (HI0393)'''
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===YCHF PROTEIN (HI0393)===
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==Overview==
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The bacterial protein encoded by the gene ychF is 1 of 11 universally conserved GTPases and the only one whose function is unknown. The crystal structure determination of YchF was sought to help with the functional assignment of the protein. The YchF protein from Haemophilus influenzae was cloned and expressed, and the crystal structure was determined at 2.4 A resolution. The polypeptide chain is folded into three domains. The N-terminal domain has a mononucleotide binding fold typical for the P-loop NTPases. An 80-residue domain next to it has a pronounced alpha-helical coiled coil. The C-terminal domain features a six-stranded half-barrel that curves around an alpha-helix. The crablike three-domain structure of YchF suggests the binding site for a double-stranded nucleic acid in the cleft between the domains. The structure of the putative GTP-binding site is consistent with the postulated guanine specificity of the protein. Fluorescence measurements have demonstrated the ability of YchF to bind a double-stranded nucleic acid and GTP. Taken together with other experimental data and genomic analysis, these results suggest that YchF may be part of a nucleoprotein complex and may function as a GTP-dependent translation factor.
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{{ABSTRACT_PUBMED_12837776}}
==About this Structure==
==About this Structure==
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[[Category: Structural genomic]]
[[Category: Structural genomic]]
[[Category: Structure 2 function project]]
[[Category: Structure 2 function project]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 20:59:02 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 09:03:01 2008''

Revision as of 06:03, 28 July 2008

Image:1jal.png

Template:STRUCTURE 1jal

YCHF PROTEIN (HI0393)

Template:ABSTRACT PUBMED 12837776

About this Structure

1JAL is a Single protein structure of sequence from Haemophilus influenzae. Full crystallographic information is available from OCA.

Reference

Crystal structure of the YchF protein reveals binding sites for GTP and nucleic acid., Teplyakov A, Obmolova G, Chu SY, Toedt J, Eisenstein E, Howard AJ, Gilliland GL, J Bacteriol. 2003 Jul;185(14):4031-7. PMID:12837776

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