1zeq

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[[Image:1zeq.gif|left|200px]]
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{{STRUCTURE_1zeq| PDB=1zeq | SCENE= }}
{{STRUCTURE_1zeq| PDB=1zeq | SCENE= }}
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'''1.5 A Structure of apo-CusF residues 6-88 from Escherichia coli'''
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===1.5 A Structure of apo-CusF residues 6-88 from Escherichia coli===
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==Overview==
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We have determined the crystal structure of apo-CusF, a periplasmic protein involved in copper and silver resistance in Escherichia coli. The protein forms a five-stranded beta-barrel, classified as an OB-fold, which is a unique topology for a copper-binding protein. NMR chemical shift mapping experiments suggest that Cu(I) is bound by conserved residues H36, M47, and M49 located in beta-strands 2 and 3. These residues are clustered at one end of the beta-barrel, and their side chains are oriented toward the interior of the barrel. Cu(I) can be modeled into the apo-CusF structure with only minimal structural changes using H36, M47, and M49 as ligands. The unique structure and metal binding site of CusF are distinct from those of previously characterized copper-binding proteins.
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(as it appears on PubMed at http://www.pubmed.gov), where 16060662 is the PubMed ID number.
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{{ABSTRACT_PUBMED_16060662}}
==About this Structure==
==About this Structure==
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[[Category: Metallochaperone]]
[[Category: Metallochaperone]]
[[Category: Ob-fold]]
[[Category: Ob-fold]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 17:32:08 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 03:53:56 2008''

Revision as of 00:53, 29 July 2008

Image:1zeq.png

Template:STRUCTURE 1zeq

1.5 A Structure of apo-CusF residues 6-88 from Escherichia coli

Template:ABSTRACT PUBMED 16060662

About this Structure

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

Reference

A novel copper-binding fold for the periplasmic copper resistance protein CusF., Loftin IR, Franke S, Roberts SA, Weichsel A, Heroux A, Montfort WR, Rensing C, McEvoy MM, Biochemistry. 2005 Aug 9;44(31):10533-40. PMID:16060662

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