2nr2: Difference between revisions

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[[Image:2nr2.jpg|left|200px]]
{{Seed}}
[[Image:2nr2.png|left|200px]]


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{{STRUCTURE_2nr2|  PDB=2nr2  |  SCENE=  }}  
{{STRUCTURE_2nr2|  PDB=2nr2  |  SCENE=  }}  


'''The MUMO (minimal under-restraining minimal over-restraining) method for the determination of native states ensembles of proteins'''
===The MUMO (minimal under-restraining minimal over-restraining) method for the determination of native states ensembles of proteins===




==Overview==
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While reliable procedures for determining the conformations of proteins are available, methods for generating ensembles of structures that also reflect their flexibility are much less well established. Here we present a systematic assessment of the ability of ensemble-averaged molecular dynamics simulations with ensemble-averaged NMR restraints to simultaneously reproduce the average structure of proteins and their associated dynamics. We discuss the effects that under-restraining (overfitting) and over-restraining (underfitting) have on the structures generated in ensemble-averaged molecular simulations. We then introduce the MUMO (minimal under-restraining minimal over-restraining) method, a procedure in which different observables are averaged over a different number of molecules. As both over-restraining and under-restraining are significantly reduced in the MUMO method, it is possible to generate ensembles of conformations that accurately characterize both the structure and the dynamics of native states of proteins. The application of the MUMO method to the protein ubiquitin yields a high-resolution structural ensemble with an RDC Q-factor of 0.19.
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{{ABSTRACT_PUBMED_17225069}}


==About this Structure==
==About this Structure==
2NR2 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NR2 OCA].  
2NR2 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NR2 OCA].  


==Reference==
==Reference==
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[[Category: Signaling protein]]
[[Category: Signaling protein]]
[[Category: Ubiquitin]]
[[Category: Ubiquitin]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May  4 09:48:25 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 15:57:35 2008''

Revision as of 12:57, 27 July 2008

File:2nr2.png

Template:STRUCTURE 2nr2

The MUMO (minimal under-restraining minimal over-restraining) method for the determination of native states ensembles of proteins

Template:ABSTRACT PUBMED 17225069

About this Structure

2NR2 is a Single protein structure of sequence from Homo sapiens. Full experimental information is available from OCA.

Reference

The MUMO (minimal under-restraining minimal over-restraining) method for the determination of native state ensembles of proteins., Richter B, Gsponer J, Varnai P, Salvatella X, Vendruscolo M, J Biomol NMR. 2007 Feb;37(2):117-35. Epub 2007 Jan 16. PMID:17225069

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