ISDA

Entry Detail

PDB ID:

6F29

Keywords:

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

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2017-11-23

Release Date:

2018-02-28

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

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Glutamate receptor ionotropic, kainate 3,Glutamate receptor ionotropic, kainate 3
Chain IDs:A
Chain Length:258
Number of Molecules:1
Biological Source:Rattus norvegicus

UniProt ID:P42264 Pfam ID:PF10613, PF00060

Ligand Molecules

CGW

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.

Brogi, S, Brindisi, M, Butini, S, Kshirsagar, G.U, Maramai, S, Chemi, G, Gemma, S, Campiani, G, Novellino, E, Fiorenzani, P, Pinassi, J, Aloisi, A.M, Gynther, M, Venskutonyte, R, Han, L, Frydenvang, K, Kastrup, J.S, Pickering, D.S.Show

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).

Legend

Protein

Chemical

Disease

Primary Citation of related structures