2jnw

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[[Image:2jnw.gif|left|200px]]
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{{STRUCTURE_2jnw| PDB=2jnw | SCENE= }}
{{STRUCTURE_2jnw| PDB=2jnw | SCENE= }}
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'''Solution structure of a ERCC1-XPA heterodimer'''
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===Solution structure of a ERCC1-XPA heterodimer===
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==Overview==
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The nucleotide excision repair (NER) pathway corrects DNA damage caused by sunlight, environmental mutagens and certain antitumor agents. This multistep DNA repair reaction operates by the sequential assembly of protein factors at sites of DNA damage. The efficient recognition of DNA damage and its repair are orchestrated by specific protein-protein and protein-DNA interactions within NER complexes. We have investigated an essential protein-protein interaction of the NER pathway, the binding of the XPA protein to the ERCC1 subunit of the repair endonuclease ERCC1-XPF. The structure of ERCC1 in complex with an XPA peptide shows that only a small region of XPA interacts with ERCC1 to form a stable complex exhibiting submicromolar binding affinity. However, this XPA peptide is a potent inhibitor of NER activity in a cell-free assay, blocking the excision of a cisplatin adduct from DNA. The structure of the peptide inhibitor bound to its target site reveals a binding interface that is amenable to the development of small molecule peptidomimetics that could be used to modulate NER repair activities in vivo.
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The line below this paragraph, {{ABSTRACT_PUBMED_17948053}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 17948053 is the PubMed ID number.
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{{ABSTRACT_PUBMED_17948053}}
==Disease==
==Disease==
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==About this Structure==
==About this Structure==
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2JNW is a [[Protein complex]] structure of sequences 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=2JNW OCA].
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2JNW is a [[Protein complex]] structure of sequences 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=2JNW OCA].
==Reference==
==Reference==
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[[Category: Recruitment]]
[[Category: Recruitment]]
[[Category: Xpa]]
[[Category: Xpa]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 09:05:18 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 29 09:34:11 2008''

Revision as of 06:34, 29 July 2008

Image:2jnw.png

Template:STRUCTURE 2jnw

Contents

Solution structure of a ERCC1-XPA heterodimer

Template:ABSTRACT PUBMED 17948053

Disease

Known disease associated with this structure: Cerebrooculofacioskeletal syndrome 4 OMIM:[126380]

About this Structure

2JNW is a Protein complex structure of sequences from Homo sapiens. Full experimental information is available from OCA.

Reference

Structural basis for the recruitment of ERCC1-XPF to nucleotide excision repair complexes by XPA., Tsodikov OV, Ivanov D, Orelli B, Staresincic L, Shoshani I, Oberman R, Scharer OD, Wagner G, Ellenberger T, EMBO J. 2007 Nov 14;26(22):4768-76. Epub 2007 Oct 18. PMID:17948053

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