2o8b

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[[Image:2o8b.gif|left|200px]]
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{{Seed}}
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[[Image:2o8b.png|left|200px]]
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{{STRUCTURE_2o8b| PDB=2o8b | SCENE= }}
{{STRUCTURE_2o8b| PDB=2o8b | SCENE= }}
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'''human MutSalpha (MSH2/MSH6) bound to ADP and a G T mispair'''
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===human MutSalpha (MSH2/MSH6) bound to ADP and a G T mispair===
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==Overview==
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Mismatch repair (MMR) ensures the fidelity of DNA replication, initiates the cellular response to certain classes of DNA damage, and has been implicated in the generation of immune diversity. Each of these functions depends on MutSalpha (MSH2*MSH6 heterodimer). Inactivation of this protein complex is responsible for tumor development in about half of known hereditary nonpolyposis colorectal cancer kindreds and also occurs in sporadic tumors in a variety of tissues. Here, we describe a series of crystal structures of human MutSalpha bound to different DNA substrates, each known to elicit one of the diverse biological responses of the MMR pathway. All lesions are recognized in a similar manner, indicating that diversity of MutSalpha-dependent responses to DNA lesions is generated in events downstream of this lesion recognition step. This study also allows rigorous mapping of cancer-causing mutations and furthermore suggests structural pathways for allosteric communication between different regions within the heterodimer.
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The line below this paragraph, {{ABSTRACT_PUBMED_17531815}}, adds the Publication Abstract to the page
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(as it appears on PubMed at http://www.pubmed.gov), where 17531815 is the PubMed ID number.
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{{ABSTRACT_PUBMED_17531815}}
==Disease==
==Disease==
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[[Category: Protein-dna complex]]
[[Category: Protein-dna complex]]
[[Category: Somatic hypermutation]]
[[Category: Somatic hypermutation]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 10:26:42 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 03:54:10 2008''

Revision as of 00:54, 28 July 2008

Image:2o8b.png

Template:STRUCTURE 2o8b

Contents

human MutSalpha (MSH2/MSH6) bound to ADP and a G T mispair

Template:ABSTRACT PUBMED 17531815

Disease

Known disease associated with this structure: Colorectal cancer, hereditary nonpolyposis, type 1 OMIM:[609309], Mismatch repair cancer syndrome OMIM:[609309], Muir-Torre syndrome OMIM:[609309]

About this Structure

2O8B is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Structure of the human MutSalpha DNA lesion recognition complex., Warren JJ, Pohlhaus TJ, Changela A, Iyer RR, Modrich PL, Beese LS, Mol Cell. 2007 May 25;26(4):579-92. PMID:17531815

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