ISDA

Deposition Date 2007-03-07

Release Date 2007-06-19

Last Version Date 2024-11-20

Entry Detail

PDB ID:

2P2A

Keywords:

MEMBRANE PROTEIN

Title:

X-ray structure of the GluR2 ligand binding core (S1S2J) in complex with 2-Bn-tet-AMPA at 2.26A resolution

Biological Source:

Source Organism:

Rattus norvegicus (Taxon ID: 10116)

Host Organism:

Escherichia coli BL21(DE3)

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.26 Å

R-Value Free:

0.27

R-Value Work:

0.21

Space Group:

P 21 21 2

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Glutamate receptor 2
Gene (Uniprot):Gria2
Chain IDs:A, B
Chain Length:263
Number of Molecules:2
Biological Source:Rattus norvegicus

UniProt ID:P19491 Pfam ID:PF10613, PF00060

Ligand Molecules

GLU

MP9

SO4

Primary Citation

A tetrazolyl-substituted subtype-selective AMPA receptor agonist.

Vogensen, S.B, Frydenvang, K, Greenwood, J.R, Postorino, G, Nielsen, B, Pickering, D.S, Ebert, B, Bolcho, U, Egebjerg, J, Gajhede, M, Kastrup, J.S, Johansen, T.N, Clausen, R.P, Krogsgaard-Larsen, P, Hogner, A, Kastrup, J.S, Jin, R, Liljefors, T, Mayer, M.L, Egebjerg, J, Larsen, I.K, Gouaux, E, Armstrong, N, Gouaux, E, Kasper, C, Lunn, M.L, Liljefors, T, Gouaux, E, Egebjerg, J, Kastrup, J.S.Show

J.Med.Chem. 50 2408 2414 (2007)

PMID: 17455929 DOI: 10.1021/jm061439q

Abstact

Replacement of the methyl group of the AMPA receptor agonist 2-amino-3-[3-hydroxy-5-(2-methyl-2H-5-tetrazolyl)-4-isoxazolyl]propionic acid (2-Me-Tet-AMPA) with a benzyl group provided the first AMPA receptor agonist, compound 7, capable of discriminating GluR2-4 from GluR1 by its more than 10-fold preference for the former receptor subtypes. An X-ray crystallographic analysis of this new analogue in complex with the GluR2-S1S2J construct shows that accommodation of the benzyl group creates a previously unobserved pocket in the receptor, which may explain the remarkable pharmacological profile of compound 7.

Legend

Protein

Chemical

Disease

Primary Citation of related structures