1g9o

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{{STRUCTURE_1g9o| PDB=1g9o | SCENE= }}
{{STRUCTURE_1g9o| PDB=1g9o | SCENE= }}
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'''FIRST PDZ DOMAIN OF THE HUMAN NA+/H+ EXCHANGER REGULATORY FACTOR'''
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===FIRST PDZ DOMAIN OF THE HUMAN NA+/H+ EXCHANGER REGULATORY FACTOR===
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==Overview==
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The Na(+)/H(+) exchanger regulatory factor (NHERF; also known as EBP50) contains two PDZ domains that mediate the assembly of transmembrane and cytosolic proteins into functional signal transduction complexes. The NHERF PDZ1 domain interacts specifically with the motifs DSLL, DSFL, and DTRL present at the carboxyl termini of the beta(2) adrenergic receptor (beta(2)AR), the platelet-derived growth factor receptor (PDGFR), and the cystic fibrosis transmembrane conductance regulator (CFTR), respectively, and plays a central role in the physiological regulation of these proteins. The crystal structure of the human NHERF PDZ1 has been determined at 1.5 A resolution using multiwavelength anomalous diffraction phasing. The overall structure is similar to known PDZ structures, with notable differences in the NHERF PDZ1 carboxylate-binding loop that contains the GYGF motif, and the variable loop between the beta2 and beta3 strands. In the crystalline state, the carboxyl-terminal sequence DEQL of PDZ1 occupies the peptide-binding pocket of a neighboring PDZ1 molecule related by 2-fold crystallographic symmetry. This structure reveals the molecular mechanism of carboxyl-terminal leucine recognition by class I PDZ domains, and provides insights into the specificity of NHERF interaction with the carboxyl termini of several membrane receptors and ion channels, including the beta(2)AR, PDGFR, and CFTR.
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(as it appears on PubMed at http://www.pubmed.gov), where 11352585 is the PubMed ID number.
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{{ABSTRACT_PUBMED_11352585}}
==About this Structure==
==About this Structure==
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[[Category: Nherf]]
[[Category: Nherf]]
[[Category: Pdz domain]]
[[Category: Pdz domain]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 17:19:18 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Jul 1 04:57:17 2008''

Revision as of 01:57, 1 July 2008

Image:1g9o.png

Template:STRUCTURE 1g9o

FIRST PDZ DOMAIN OF THE HUMAN NA+/H+ EXCHANGER REGULATORY FACTOR

Template:ABSTRACT PUBMED 11352585

About this Structure

1G9O is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.

Reference

Crystal structure of the PDZ1 domain of human Na(+)/H(+) exchanger regulatory factor provides insights into the mechanism of carboxyl-terminal leucine recognition by class I PDZ domains., Karthikeyan S, Leung T, Birrane G, Webster G, Ladias JA, J Mol Biol. 2001 May 18;308(5):963-73. PMID:11352585

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