2pie: Difference between revisions

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


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{{STRUCTURE_2pie|  PDB=2pie  |  SCENE=  }}  
{{STRUCTURE_2pie|  PDB=2pie  |  SCENE=  }}  


'''Crystal structure of the FHA domain of RNF8 in complex with its optimal phosphopeptide'''
===Crystal structure of the FHA domain of RNF8 in complex with its optimal phosphopeptide===




==Overview==
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DNA-damage signaling utilizes a multitude of posttranslational modifiers as molecular switches to regulate cell-cycle checkpoints, DNA repair, cellular senescence, and apoptosis. Here we show that RNF8, a FHA/RING domain-containing protein, plays a critical role in the early DNA-damage response. We have solved the X-ray crystal structure of the FHA domain structure at 1.35 A. We have shown that RNF8 facilitates the accumulation of checkpoint mediator proteins BRCA1 and 53BP1 to the damaged chromatin, on one hand through the phospho-dependent FHA domain-mediated binding of RNF8 to MDC1, on the other hand via its role in ubiquitylating H2AX and possibly other substrates at damage sites. Moreover, RNF8-depleted cells displayed a defective G2/M checkpoint and increased IR sensitivity. Together, our study implicates RNF8 as a novel DNA-damage-responsive protein that integrates protein phosphorylation and ubiquitylation signaling and plays a critical role in the cellular response to genotoxic stress.
The line below this paragraph, {{ABSTRACT_PUBMED_18001825}}, adds the Publication Abstract to the page
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{{ABSTRACT_PUBMED_18001825}}


==About this Structure==
==About this Structure==
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[[Category: Phosphopeptide]]
[[Category: Phosphopeptide]]
[[Category: Signaling protein]]
[[Category: Signaling protein]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May  4 13:10:17 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 06:30:33 2008''

Revision as of 03:30, 29 July 2008

File:2pie.png

Template:STRUCTURE 2pie

Crystal structure of the FHA domain of RNF8 in complex with its optimal phosphopeptide

Template:ABSTRACT PUBMED 18001825

About this Structure

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

Reference

RNF8 transduces the DNA-damage signal via histone ubiquitylation and checkpoint protein assembly., Huen MS, Grant R, Manke I, Minn K, Yu X, Yaffe MB, Chen J, Cell. 2007 Nov 30;131(5):901-14. Epub 2007 Nov 20. PMID:18001825

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