2bgw
From Proteopedia
| Line 1: | Line 1: | ||
| - | [[Image:2bgw.gif|left|200px]]<br /> | + | [[Image:2bgw.gif|left|200px]]<br /><applet load="2bgw" size="450" color="white" frame="true" align="right" spinBox="true" |
| - | <applet load="2bgw" size="450" color="white" frame="true" align="right" spinBox="true" | + | |
caption="2bgw, resolution 2.80Å" /> | caption="2bgw, resolution 2.80Å" /> | ||
'''XPF FROM AEROPYRUM PERNIX, COMPLEX WITH DNA'''<br /> | '''XPF FROM AEROPYRUM PERNIX, COMPLEX WITH DNA'''<br /> | ||
| Line 8: | Line 7: | ||
==About this Structure== | ==About this Structure== | ||
| - | 2BGW is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Aeropyrum_pernix Aeropyrum pernix] with MG and SO4 as [http://en.wikipedia.org/wiki/ligands ligands]. | + | 2BGW is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Aeropyrum_pernix Aeropyrum pernix] with MG and SO4 as [http://en.wikipedia.org/wiki/ligands ligands]. Known structural/functional Site: <scene name='pdbsite=AC1:So4 Binding Site For Chain D'>AC1</scene>. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2BGW OCA]. |
==Reference== | ==Reference== | ||
| Line 28: | Line 27: | ||
[[Category: structure specific endonuclease]] | [[Category: structure specific endonuclease]] | ||
| - | ''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on | + | ''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Dec 18 18:46:25 2007'' |
Revision as of 16:36, 18 December 2007
|
XPF FROM AEROPYRUM PERNIX, COMPLEX WITH DNA
Overview
The XPF/Mus81 structure-specific endonucleases cleave double-stranded DNA, (dsDNA) within asymmetric branched DNA substrates and play an essential, role in nucleotide excision repair, recombination and genome integrity. We, report the structure of an archaeal XPF homodimer alone and bound to, dsDNA. Superposition of these structures reveals a large domain movement, upon binding DNA, indicating how the (HhH)(2) domain and the nuclease, domain are coupled to allow the recognition of, double-stranded/single-stranded DNA junctions. We identify two, nonequivalent DNA-binding sites and propose a model in which XPF distorts, the 3' flap substrate in order to engage both binding sites and promote, strand cleavage. The model rationalises published biochemical data and, implies a novel role for the ERCC1 subunit of eukaryotic XPF complexes.
About this Structure
2BGW is a Single protein structure of sequence from Aeropyrum pernix with MG and SO4 as ligands. Known structural/functional Site: . Full crystallographic information is available from OCA.
Reference
Structure of an XPF endonuclease with and without DNA suggests a model for substrate recognition., Newman M, Murray-Rust J, Lally J, Rudolf J, Fadden A, Knowles PP, White MF, McDonald NQ, EMBO J. 2005 Mar 9;24(5):895-905. Epub 2005 Feb 17. PMID:15719018
Page seeded by OCA on Tue Dec 18 18:46:25 2007
