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2jwo

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{{STRUCTURE_2jwo| PDB=2jwo | SCENE= }}
{{STRUCTURE_2jwo| PDB=2jwo | SCENE= }}
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'''A PHD finger motif in the C-terminus of RAG2 modulates recombination activity'''
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===A PHD finger motif in the C-terminus of RAG2 modulates recombination activity===
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==Overview==
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The RAG1 and RAG2 proteins catalyze V(D)J recombination and are essential for generation of the diverse repertoire of antigen receptor genes and effective immune responses. RAG2 is composed of a "core" domain that is required for the recombination reaction and a C-terminal nonessential or "non-core" region. Recent evidence has emerged arguing that the non-core region plays a critical regulatory role in the recombination reaction, and mutations in this region have been identified in patients with immunodeficiencies. Here we present the first structural data for the RAG2 protein, using NMR spectroscopy to demonstrate that the C terminus of RAG2 contains a noncanonical PHD finger. All of the non-core mutations of RAG2 that are implicated in the development of immunodeficiencies are located within the PHD finger, at either zinc-coordinating residues or residues adjacent to an alpha-helix on the surface of the domain that participates in binding to the signaling molecules, phosphoinositides. Functional analysis of disease and phosphoinositide-binding mutations reveals novel intramolecular interactions within the non-core region and suggests that the PHD finger adopts two distinct states. We propose a model in which the equilibrium between these states modulates recombination activity. Together, these data identify the PHD finger as a novel and functionally important domain of RAG2.
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(as it appears on PubMed at http://www.pubmed.gov), where 15964836 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15964836}}
==About this Structure==
==About this Structure==
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2JWO is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=2a23 2a23]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JWO OCA].
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2JWO is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=2a23 2a23]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2JWO OCA].
==Reference==
==Reference==
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[[Category: Phosphoinositide signaling]]
[[Category: Phosphoinositide signaling]]
[[Category: Rag2]]
[[Category: Rag2]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 09:21:46 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 12:17:54 2008''

Revision as of 09:17, 28 July 2008

Image:2jwo.png

Template:STRUCTURE 2jwo

A PHD finger motif in the C-terminus of RAG2 modulates recombination activity

Template:ABSTRACT PUBMED 15964836

About this Structure

2JWO is a Single protein structure of sequence from Mus musculus. This structure supersedes the now removed PDB entry 2a23. Full experimental information is available from OCA.

Reference

A PHD finger motif in the C terminus of RAG2 modulates recombination activity., Elkin SK, Ivanov D, Ewalt M, Ferguson CG, Hyberts SG, Sun ZY, Prestwich GD, Yuan J, Wagner G, Oettinger MA, Gozani OP, J Biol Chem. 2005 Aug 5;280(31):28701-10. Epub 2005 Jun 17. PMID:15964836

Page seeded by OCA on Mon Jul 28 12:17:54 2008

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