2bgf: Difference between revisions

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[[Image:2bgf.gif|left|200px]]
{{Seed}}
[[Image:2bgf.png|left|200px]]


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{{STRUCTURE_2bgf|  PDB=2bgf  |  SCENE=  }}  
{{STRUCTURE_2bgf|  PDB=2bgf  |  SCENE=  }}  


'''NMR STRUCTURE OF LYS48-LINKED DI-UBIQUITIN USING CHEMICAL SHIFT PERTURBATION DATA TOGETHER WITH RDCS AND 15N-RELAXATION DATA'''
===NMR STRUCTURE OF LYS48-LINKED DI-UBIQUITIN USING CHEMICAL SHIFT PERTURBATION DATA TOGETHER WITH RDCS AND 15N-RELAXATION DATA===




==Overview==
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When classical, Nuclear Overhauser Effect (NOE)-based approaches fail, it is possible, given high-resolution structures of the free molecules, to model the structure of a complex in solution based solely on chemical shift perturbation (CSP) data in combination with orientational restraints from residual dipolar couplings (RDCs) when available. RDCs can be incorporated into the docking following various strategies: as direct restraints and/or as intermolecular intervector projection angle restraints (Meiler et al., J Biomol NMR 2000;16:245-252). The advantage of the latter for docking is that they directly define the relative orientation of the molecules. A combined protocol in which RDCs are first introduced as intervector projection angle restraints and at a later stage as direct restraints is shown here to give the best performance. This approach, implemented in our information-driven docking approach HADDOCK (Dominguez et al., J Am Chem Soc 2003;125:1731-1737), is used to determine the solution structure of the Lys48-linked di-ubiquitin, for which chemical shift mapping, RDCs, and (15)N-relaxation data have been previously obtained (Varadan et al., J Mol Biol 2002;324:637-647). The resulting structures, derived from CSP and RDC data, are cross-validated using (15)N-relaxation data. The solution structure differs from the crystal structure by a 20 degrees rotation of the two ubiquitin units relative to each other.
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{{ABSTRACT_PUBMED_15937902}}


==About this Structure==
==About this Structure==
2BGF 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=2BGF OCA].  
2BGF 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=2BGF OCA].  


==Reference==
==Reference==
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[[Category: Proteasome]]
[[Category: Proteasome]]
[[Category: Ubiquitin]]
[[Category: Ubiquitin]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 20:15:05 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Jul 27 20:50:32 2008''

Revision as of 17:50, 27 July 2008

File:2bgf.png

Template:STRUCTURE 2bgf

NMR STRUCTURE OF LYS48-LINKED DI-UBIQUITIN USING CHEMICAL SHIFT PERTURBATION DATA TOGETHER WITH RDCS AND 15N-RELAXATION DATA

Template:ABSTRACT PUBMED 15937902

About this Structure

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

Reference

Various strategies of using residual dipolar couplings in NMR-driven protein docking: application to Lys48-linked di-ubiquitin and validation against 15N-relaxation data., van Dijk AD, Fushman D, Bonvin AM, Proteins. 2005 Aug 15;60(3):367-81. PMID:15937902

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