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2yvc

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==Overview==
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{{ABSTRACT_17459884}}
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Radixin is a member of the ezrin/radixin/moesin (ERM) family of proteins, which play a role in the formation of the membrane-associated cytoskeleton by linking actin filaments and adhesion proteins. This cross-linking activity is regulated by phosphoinositides such as phosphatidylinositol 4,5-bisphosphate (PIP2) in the downstream of the small G protein Rho. The X-ray crystal structures of the radixin FERM domain, which is responsible for membrane binding, and its complex with inositol-(1,4, 5)-trisphosphate (IP3) have been determined. The domain consists of three subdomains featuring a ubiquitin-like fold, a four-helix bundle and a phosphotyrosine-binding-like domain, respectively. These subdomains are organized by intimate interdomain interactions to form characteristic grooves and clefts. One such groove is negatively charged and so is thought to interact with basic juxta-membrane regions of adhesion proteins. IP3 binds a basic cleft that is distinct from those of pleckstrin homology domains and is located on a positively charged flat molecular surface, suggesting an electrostatic mechanism of plasma membrane targeting. Based on the structural changes associated with IP3 binding, a possible unmasking mechanism of ERM proteins by PIP2 is proposed.
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==About this Structure==
==About this Structure==
2YVC is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2YVC OCA].
2YVC is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Mus_musculus Mus musculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2YVC OCA].
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==Reference==
 
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Structural basis of the membrane-targeting and unmasking mechanisms of the radixin FERM domain., Hamada K, Shimizu T, Matsui T, Tsukita S, Hakoshima T, EMBO J. 2000 Sep 1;19(17):4449-62. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10970839 10970839]
 
[[Category: Mus musculus]]
[[Category: Mus musculus]]
[[Category: Protein complex]]
[[Category: Protein complex]]
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[[Category: Kitano, K.]]
[[Category: Kitano, K.]]
[[Category: Terawaki, S.]]
[[Category: Terawaki, S.]]
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[[Category: Cell adhesion]]
[[Category: Protein-peptide complex]]
[[Category: Protein-peptide complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jun 25 15:09:43 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jun 25 18:41:52 2008''

Revision as of 15:41, 25 June 2008

Image:2yvc.png

Template:STRUCTURE 2yvc

Crystal structure of the Radixin FERM domain complexed with the NEP cytoplasmic tail


Template:ABSTRACT 17459884

About this Structure

2YVC is a Protein complex structure of sequences from Mus musculus. Full crystallographic information is available from OCA.

Page seeded by OCA on Wed Jun 25 18:41:52 2008

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