1ovx

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{{STRUCTURE_1ovx| PDB=1ovx | SCENE= }}
{{STRUCTURE_1ovx| PDB=1ovx | SCENE= }}
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'''NMR structure of the E. coli ClpX chaperone zinc binding domain dimer'''
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===NMR structure of the E. coli ClpX chaperone zinc binding domain dimer===
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==Overview==
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ClpX (423 amino acids), a member of the Clp/Hsp100 family of molecular chaperones and the protease, ClpP, comprise a multimeric complex supporting targeted protein degradation in Escherichia coli. The ClpX sequence consists of an NH2-terminal zinc binding domain (ZBD) and a COOH-terminal ATPase domain. Earlier, we have demonstrated that the zinc binding domain forms a constitutive dimer that is essential for the degradation of some ClpX substrates such as gammaO and MuA but is not required for the degradation of other substrates such as green fluorescent protein-SsrA. In this report, we present the NMR solution structure of the zinc binding domain dimer. The monomer fold reveals that ZBD is a member of the treble clef zinc finger family, a motif known to facilitate protein-ligand, protein-DNA, and protein-protein interactions. However, the dimeric ZBD structure is not related to any protein structure in the Protein Data Bank. A trimer-of-dimers model of ZBD is presented, which might reflect the closed state of the ClpX hexamer.
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{{ABSTRACT_PUBMED_14525985}}
==About this Structure==
==About this Structure==
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1OVX is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OVX OCA].
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1OVX is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OVX OCA].
==Reference==
==Reference==
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[[Category: Homodimer]]
[[Category: Homodimer]]
[[Category: Treble clef zinc finger]]
[[Category: Treble clef zinc finger]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 19:32:29 2008''

Revision as of 16:32, 27 July 2008

Image:1ovx.png

Template:STRUCTURE 1ovx

NMR structure of the E. coli ClpX chaperone zinc binding domain dimer

Template:ABSTRACT PUBMED 14525985

About this Structure

1OVX is a Single protein structure of sequence from Escherichia coli. Full experimental information is available from OCA.

Reference

Solution structure of the dimeric zinc binding domain of the chaperone ClpX., Donaldson LW, Wojtyra U, Houry WA, J Biol Chem. 2003 Dec 5;278(49):48991-6. Epub 2003 Oct 1. PMID:14525985

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