ISDA

Deposition Date 2010-11-09

Release Date 2011-04-27

Last Version Date 2024-11-20

Entry Detail

PDB ID:

2XX8

Keywords:

TRANSPORT PROTEIN

Title:

Crystal structure of N,N-dimethyl-4-(3-(trifluoromethyl)-4,5,6,7- tetrahydro-1H-indazol-1-yl)benzamide in complex with the ligand binding domain of the Rat GluA2 receptor and glutamate at 2.2A resolution.

Biological Source:

Source Organism:

RATTUS NORVEGICUS (Taxon ID: 10116)

Host Organism:

ESCHERICHIA COLI

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.55 Å

R-Value Free:

0.21

R-Value Work:

0.18

R-Value Observed:

0.19

Space Group:

P 21 21 2

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:GLUTAMATE RECEPTOR 2
Gene (Uniprot):Gria2
Mutations:YES
Chain IDs:A, B, C
Chain Length:263
Number of Molecules:3
Biological Source:RATTUS NORVEGICUS

UniProt ID:P19491 Pfam ID:PF10613, PF00060

Ligand Molecules

1NE

GLU

SO4

Primary Citation

Integration of Lead Optimization with Crystallography for a Membrane-Bound Ion Channel Target: Discovery of a New Class of Ampa Receptor Positive Allosteric Modulators.

Ward, S.E, Harries, M, Aldegheri, L, Austin, N.E, Ballantine, S, Ballini, E, Bradley, D.M, Bax, B.D, Clarke, B.P, Harris, A.J, Harrison, S.A, Melarange, R.A, Mookherjee, C, Mosley, J, Dal Negro, G, Oliosi, B, Smith, K.J, Thewlis, K.M, Woollard, P.M, Yusaf, S.P.Show

J.Med.Chem. 54 78 ? (2011)

PMID: 21128618 DOI: 10.1021/JM100679E

Abstact

A novel series of AMPAR positive modulators is described that were identified by high throughput screening. The molecules of the series have been optimized from a high quality starting point hit to afford excellent developability, tolerability, and efficacy profiles, leading to identification of a clinical candidate. Unusually for an ion channel target, this optimization was integrated with regular generation of ligand-bound crystal structures and uncovered a novel chemotype with a unique and highly conserved mode of interaction via a trifluoromethyl group.

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Primary Citation of related structures