6F29 image
Deposition Date 2017-11-23
Release Date 2018-02-28
Last Version Date 2024-11-13
Entry Detail
PDB ID:
6F29
Keywords:
MEMBRANE PROTEIN
Title:
Crystal structure of the kainate receptor GluK3 ligand binding domain in complex with (S)-1-[2-Amino-2-carboxyethyl]-5,7-dihydrothieno[3,4-d]pyrimidin-2,4(1H,3H)-dione at resolution 2.6A
Biological Source:
Source Organism:
Rattus norvegicus (Taxon ID: 10116)
Host Organism:
Escherichia coli
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.60 Å
R-Value Free:
0.24
R-Value Work:
0.19
R-Value Observed:
0.19
Space Group:
P 41 2 2
6F29 validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Glutamate receptor ionotropic, kainate 3,Glutamate receptor ionotropic, kainate 3
Gene (Uniprot):Grik3
Chain IDs:A
Chain Length:258
Number of Molecules:1
Biological Source:Rattus norvegicus
UniProt ID:P42264 Pfam ID:PF10613, PF00060
Ligand Molecules
CGW
CL
K
Primary Citation
( S)-2-Amino-3-(5-methyl-3-hydroxyisoxazol-4-yl)propanoic Acid (AMPA) and Kainate Receptor Ligands: Further Exploration of Bioisosteric Replacements and Structural and Biological Investigation.
J. Med. Chem. 61 2124 2130 (2018)
PMID: 29451794 DOI: 10.1021/acs.jmedchem.8b00099

Abstact

Starting from 1-4 and 7 structural templates, analogues based on bioisosteric replacements (5a-c vs 1, 2 and 6 vs 7) were synthesized for completing the SAR analysis. Interesting binding properties at GluA2, GluK1, and GluK3 receptors were discovered. The requirements for GluK3 interaction were elucidated by determining the X-ray structures of the GluK3-LBD with 2 and 5c and by computational studies. Antinociceptive potential was demonstrated for GluK1 partial agonist 3 and antagonist 7 (2 mg/kg ip).

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Primary Citation of related structures
6F29