1gq4
From Proteopedia
| Line 1: | Line 1: | ||
| - | [[Image:1gq4.gif|left|200px]] | + | [[Image:1gq4.gif|left|200px]] |
| - | + | ||
| - | '''STRUCTURAL DETERMINANTS OF THE NHERF INTERACTION WITH BETA2AR AND PDGFR''' | + | {{Structure |
| + | |PDB= 1gq4 |SIZE=350|CAPTION= <scene name='initialview01'>1gq4</scene>, resolution 1.90Å | ||
| + | |SITE= | ||
| + | |LIGAND= <scene name='pdbligand=CL:CHLORIDE ION'>CL</scene> | ||
| + | |ACTIVITY= | ||
| + | |GENE= | ||
| + | }} | ||
| + | |||
| + | '''STRUCTURAL DETERMINANTS OF THE NHERF INTERACTION WITH BETA2AR AND PDGFR''' | ||
| + | |||
==Overview== | ==Overview== | ||
| Line 10: | Line 19: | ||
==About this Structure== | ==About this Structure== | ||
| - | 1GQ4 is a [ | + | 1GQ4 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GQ4 OCA]. |
==Reference== | ==Reference== | ||
| - | Structural determinants of the Na+/H+ exchanger regulatory factor interaction with the beta 2 adrenergic and platelet-derived growth factor receptors., Karthikeyan S, Leung T, Ladias JA, J Biol Chem. 2002 May 24;277(21):18973-8. Epub 2002 Mar 6. PMID:[http:// | + | Structural determinants of the Na+/H+ exchanger regulatory factor interaction with the beta 2 adrenergic and platelet-derived growth factor receptors., Karthikeyan S, Leung T, Ladias JA, J Biol Chem. 2002 May 24;277(21):18973-8. Epub 2002 Mar 6. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/11882663 11882663] |
[[Category: Homo sapiens]] | [[Category: Homo sapiens]] | ||
[[Category: Single protein]] | [[Category: Single protein]] | ||
| Line 28: | Line 37: | ||
[[Category: signaling protein]] | [[Category: signaling protein]] | ||
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu | + | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 11:26:30 2008'' |
Revision as of 09:26, 20 March 2008
| |||||||
| , resolution 1.90Å | |||||||
|---|---|---|---|---|---|---|---|
| Ligands: | |||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
STRUCTURAL DETERMINANTS OF THE NHERF INTERACTION WITH BETA2AR AND PDGFR
Contents |
Overview
The Na(+)/H(+) exchanger regulatory factor (NHERF) binds through its PDZ1 domain to the carboxyl-terminal sequences NDSLL and EDSFL of the beta(2) adrenergic receptor (beta(2)AR) and platelet-derived growth factor receptor, respectively, and plays a critical role in the membrane localization and physiological regulation of these receptors. The crystal structures of the human NHERF PDZ1 domain bound to the sequences NDSLL and EDSFL have been determined at 1.9- and 2.2-A resolution, respectively. The beta(2)AR and platelet-derived growth factor receptor ligands insert into the PDZ1 binding pocket by a beta-sheet augmentation process and are stabilized by largely similar networks of hydrogen bonds and hydrophobic contacts. In the PDZ1-beta(2)AR complex, the side chain of asparagine at position -4 in the beta(2)AR peptide forms two additional hydrogen bonds with Gly(30) of PDZ1, which contribute to the higher affinity of this interaction. Remarkably, both complexes are further stabilized by hydrophobic interactions involving the side chains of the penultimate amino acids of the peptide ligands, whereas the PDZ1 residues Asn(22) and Glu(43) undergo conformational changes to accommodate these side chains. These results provide structural insights into the mechanisms by which different side chains at the position -1 of peptide ligands interact with PDZ domains and contribute to the affinity of the PDZ-ligand interaction.
Disease
Known diseases associated with this structure: Asthma, nocturnal, susceptibility to OMIM:[109690], Beta-2-adrenoreceptor agonist, reduced response to OMIM:[109690], Obesity, susceptibility to OMIM:[109690]
About this Structure
1GQ4 is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structural determinants of the Na+/H+ exchanger regulatory factor interaction with the beta 2 adrenergic and platelet-derived growth factor receptors., Karthikeyan S, Leung T, Ladias JA, J Biol Chem. 2002 May 24;277(21):18973-8. Epub 2002 Mar 6. PMID:11882663
Page seeded by OCA on Thu Mar 20 11:26:30 2008
