2npb: Difference between revisions

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[[Image:2npb.gif|left|200px]]
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[[Image:2npb.png|left|200px]]


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{{STRUCTURE_2npb|  PDB=2npb  |  SCENE=  }}  
{{STRUCTURE_2npb|  PDB=2npb  |  SCENE=  }}  


'''NMR solution structure of mouse SelW'''
===NMR solution structure of mouse SelW===




==Overview==
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Selenium is a trace element with significant biomedical potential. It is essential in mammals due to its occurrence in several proteins in the form of selenocysteine (Sec). One of the most abundant mammalian Sec-containing proteins is selenoprotein W (SelW). This protein of unknown function has a broad expression pattern and contains a candidate CXXU (where U represents Sec) redox motif. Here, we report the solution structure of the Sec13--&gt;Cys variant of mouse SelW determined through high resolution NMR spectroscopy. The protein has a thioredoxin-like fold with the CXXU motif located in an exposed loop similarly to the redox-active site in thioredoxin. Protein dynamics studies revealed the rigidity of the protein backbone and mobility of two external loops and suggested a role of these loops in interaction with SelW partners. Molecular modeling of structures of other members of the Rdx family based on the SelW structure identified new conserved features in these proteins, including an aromatic cluster and interacting loops. Our previous study suggested an interaction between SelW and 14-3-3 proteins. In the present work, with the aid of NMR spectroscopy, we demonstrated specificity of this interaction and identified mobile loops in SelW as interacting surfaces. This finding suggests that 14-3-3 are redox-regulated proteins.
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{{ABSTRACT_PUBMED_17928294}}


==About this Structure==
==About this Structure==
2NPB is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NPB OCA].  
2NPB is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NPB OCA].  


==Reference==
==Reference==
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[[Category: Structure]]
[[Category: Structure]]
[[Category: Thioredoxin-like fold]]
[[Category: Thioredoxin-like fold]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May  4 09:44:17 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 15:33:06 2008''

Revision as of 12:33, 27 July 2008

File:2npb.png

Template:STRUCTURE 2npb

NMR solution structure of mouse SelW

Template:ABSTRACT PUBMED 17928294

About this Structure

2NPB is a Single protein structure of sequence from Mus musculus. Full experimental information is available from OCA.

Reference

Solution structure of selenoprotein W and NMR analysis of its interaction with 14-3-3 proteins., Aachmann FL, Fomenko DE, Soragni A, Gladyshev VN, Dikiy A, J Biol Chem. 2007 Dec 21;282(51):37036-44. Epub 2007 Oct 10. PMID:17928294

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