1y76

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{{STRUCTURE_1y76| PDB=1y76 | SCENE= }}
{{STRUCTURE_1y76| PDB=1y76 | SCENE= }}
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'''Solution Structure of Patj/Pals1 L27 Domain Complex'''
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===Solution Structure of Patj/Pals1 L27 Domain Complex===
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==Overview==
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Initially identified in Caenorhabditis elegans Lin-2 and Lin-7, L27 domain is a protein-protein interaction domain capable of organizing scaffold proteins into supramolecular assemblies by formation of heteromeric L27 domain complexes. L27 domain-mediated protein assemblies have been shown to play essential roles in cellular processes including asymmetric cell division, establishment and maintenance of cell polarity, and clustering of receptors and ion channels. The structural basis of L27 domain heteromeric complex assembly is controversial. We determined the high-resolution solution structure of the prototype L27 domain complex formed by mLin-2 and mLin-7 as well as the solution structure of the L27 domain complex formed by Patj and Pals1. The structures suggest that a tetrameric structure composed of two units of heterodimer is a general assembly mode for cognate pairs of L27 domains. Structural analysis of the L27 domain complex structures further showed that the central four-helix bundles mediating tetramer assembly are highly distinct between different pairs of L27 domain complexes. Biochemical studies revealed that the C-terminal alpha-helix responsible for the formation of the central helix bundle is a critical specificity determinant for each L27 domain in choosing its binding partner. Our results provide a unified picture for L27 domain-mediated protein-protein interactions.
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(as it appears on PubMed at http://www.pubmed.gov), where 15863617 is the PubMed ID number.
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{{ABSTRACT_PUBMED_15863617}}
==About this Structure==
==About this Structure==
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1Y76 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Y76 OCA].
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1Y76 is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [http://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Y76 OCA].
==Reference==
==Reference==
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[[Category: Protein assembly]]
[[Category: Protein assembly]]
[[Category: Scaffold protein]]
[[Category: Scaffold protein]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 15:57:08 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 20:31:50 2008''

Revision as of 17:31, 28 July 2008

Image:1y76.png

Template:STRUCTURE 1y76

Solution Structure of Patj/Pals1 L27 Domain Complex

Template:ABSTRACT PUBMED 15863617

About this Structure

1Y76 is a Protein complex structure of sequences from Homo sapiens and Rattus norvegicus. Full experimental information is available from OCA.

Reference

A unified assembly mode revealed by the structures of tetrameric L27 domain complexes formed by mLin-2/mLin-7 and Patj/Pals1 scaffold proteins., Feng W, Long JF, Zhang M, Proc Natl Acad Sci U S A. 2005 May 10;102(19):6861-6. Epub 2005 Apr 29. PMID:15863617

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