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1p8g

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{{STRUCTURE_1p8g| PDB=1p8g | SCENE= }}
{{STRUCTURE_1p8g| PDB=1p8g | SCENE= }}
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'''The solution structure of apo CopZ from Bacillus subtilis'''
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===The solution structure of apo CopZ from Bacillus subtilis===
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==Overview==
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The solution structure of apo CopZ from Bacillus subtilis has been determined with the aim of investigating the changes in the hydrophobic interactions around the M-X-C-X-X-C copper(I) binding motif upon metal binding. The methionine of this motif (Met 11 in CopZ) points toward the solvent in apo CopZ, whereas its sulfur atom is close to the metal ion in the metal-loaded protein, though probably not at binding distance. This change is associated with the weakening of the interaction between Leu 37 and Cys 16, present in the apo form, and the formation of an interaction between Met 11 and Tyr 65. Loops 1, 3, and 5 are affected by metal binding. Comparison with the structure of other homologous proteins confirms that often metal binding affects a hydrophobic patch around the metal site, possibly for optimizing and tuning the hydrophobic interactions with the partners. It is also shown that copper(I) exchanges among apo CopZ molecules in slow exchange on the NMR time scale, whereas it is known that such exchange between partner molecules (i.e., metallochaperones and metal pumps) is fast.
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{{ABSTRACT_PUBMED_14621987}}
==About this Structure==
==About this Structure==
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1P8G is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_subtilis Bacillus subtilis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1P8G OCA].
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1P8G is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_subtilis Bacillus subtilis]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1P8G OCA].
==Reference==
==Reference==
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[[Category: Copper chaperone]]
[[Category: Copper chaperone]]
[[Category: M-x-c-x-x-c motif]]
[[Category: M-x-c-x-x-c motif]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 04:48:57 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 19:44:18 2008''

Revision as of 16:44, 27 July 2008

Image:1p8g.png

Template:STRUCTURE 1p8g

The solution structure of apo CopZ from Bacillus subtilis

Template:ABSTRACT PUBMED 14621987

About this Structure

1P8G is a Single protein structure of sequence from Bacillus subtilis. Full experimental information is available from OCA.

Reference

Solution structure of apo CopZ from Bacillus subtilis: further analysis of the changes associated with the presence of copper., Banci L, Bertini I, Del Conte R, Biochemistry. 2003 Nov 25;42(46):13422-8. PMID:14621987

Page seeded by OCA on Sun Jul 27 19:44:18 2008

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