ISDA

Entry Detail

PDB ID:

4MF3

Keywords:

SIGNALING PROTEIN

Title:

Crystal Structure of Human GRIK1 complexed with a 6-(tetrazolyl)aryl decahydroisoquinoline antagonist

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2013-08-27

Release Date:

2014-05-07

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

3.00 Å

R-Value Free:

0.25

R-Value Work:

0.23

R-Value Observed:

0.23

Space Group:

P 32 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:Glutamate receptor ionotropic, kainate 1
Chain IDs:A, B
Chain Length:261
Number of Molecules:2
Biological Source:Homo sapiens

UniProt ID:P39086 Pfam ID:PF10613, PF00060

Ligand Molecules

SXI

Primary Citation

GluK1 antagonists from 6-(tetrazolyl)phenyl decahydroisoquinoline derivatives: in vitro profile and in vivo analgesic efficacy.

Martinez-Perez, J.A, Iyengar, S, Shannon, H.E, Bleakman, D, Alt, A, Clawson, D.K, Arnold, B.M, Bell, M.G, Bleisch, T.J, Castano, A.M, Del Prado, M, Dominguez, E, Escribano, A.M, Filla, S.A, Ho, K.H, Hudziak, K.J, Jones, C.K, Mateo, A, Mathes, B.M, Mattiuz, E.L, Ogden, A.M, Simmons, R.M, Stack, D.R, Stratford, R.E, Winter, M.A, Wu, Z, Ornstein, P.L.Show

Bioorg.Med.Chem.Lett. 23 6463 6466 (2013)

PMID: 24140446 DOI: 10.1016/j.bmcl.2013.09.045

Abstact

We have explored the decahydroisoquinoline scaffold, bearing a phenyl tetrazole, as GluK1 antagonists with potential as oral analgesics. We have established the optimal linker atom between decahydroisoquinoline and phenyl rings and demonstrated an improvement of both the affinity for the GluK1 receptor and the selectivity against the related GluA2 receptor with proper phenyl substitution. In this Letter, we also disclose in vivo data that led to the discovery of LY545694·HCl, a compound with oral efficacy in two persistent pain models.

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