1YCJ image
Entry Detail
PDB ID:
1YCJ
Keywords:
MEMBRANE PROTEIN
Title:
Crystal structure of the kainate receptor GluR5 ligand-binding core in complex with (S)-glutamate
Biological Source:
Source Organism:
Rattus norvegicus
Host Organism:
Escherichia coli
PDB Version:
Deposition Date:
2004-12-22
Release Date:
2005-02-01
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.95 Å
R-Value Free:
0.26
R-Value Work:
0.19
R-Value Observed:
0.20
Space Group:
P 1 21 1
1YCJ validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Description:Ionotropic glutamate receptor 5
Chain IDs:A, B
Chain Length:257
Number of Molecules:2
Biological Source:Rattus norvegicus
UniProt ID:P22756 Pfam ID:PF10613, PF00060
Ligand Molecules
GLU
SO4
Primary Citation
Crystal structure of the kainate receptor GluR5 ligand-binding core in complex with (S)-glutamate
Febs Lett. 579 1154 1160 (2005)
PMID: 15710405 DOI: 10.1016/j.febslet.2005.01.012

Abstact

The X-ray structure of the ligand-binding core of the kainate receptor GluR5 (GluR5-S1S2) in complex with (S)-glutamate was determined to 1.95 A resolution. The overall GluR5-S1S2 structure comprises two domains and is similar to the related AMPA receptor GluR2-S1S2J. (S)-glutamate binds as in GluR2-S1S2J. Distinct features are observed for Ser741, which stabilizes a highly coordinated network of water molecules and forms an interdomain bridge. The GluR5 complex exhibits a high degree of domain closure (26 degrees) relative to apo GluR2-S1S2J. In addition, GluR5-S1S2 forms a novel dimer interface with a different arrangement of the two protomers compared to GluR2-S1S2J.

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Primary Citation of related structures
1FTJ