4MF3

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.237 
  • R-Value Observed: 0.238 

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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

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.

(2013) Bioorg Med Chem Lett 23: 6463-6466

  • DOI: https://doi.org/10.1016/j.bmcl.2013.09.045
  • Primary Citation of Related Structures:  
    4MF3

  • PubMed Abstract: 

    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.


  • Organizational Affiliation

    Centro de Investigación Lilly, Avda. de la Industria, 30, 28108 Alcobendas, Madrid, Spain. Electronic address: Martinez-Perez_Jose_A@Lilly.com.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Glutamate receptor ionotropic, kainate 1
A, B
261Homo sapiensMutation(s): 0 
Gene Names: GRIK1GLUR5
UniProt & NIH Common Fund Data Resources
Find proteins for P39086 (Homo sapiens)
Explore P39086 
Go to UniProtKB:  P39086
PHAROS:  P39086
GTEx:  ENSG00000171189 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP39086
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
SXI
Query on SXI

Download Ideal Coordinates CCD File 
C [auth A],
D [auth B]
(3S,4aS,6S,8aR)-6-[3-chloro-2-(1H-tetrazol-5-yl)phenoxy]decahydroisoquinoline-3-carboxylic acid
C17 H20 Cl N5 O3
LAKQPSQCICNZII-NOHGZBONSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.237 
  • R-Value Observed: 0.238 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 108.018α = 90
b = 108.018β = 90
c = 109.766γ = 120
Software Package:
Software NamePurpose
BUSTER-TNTrefinement
PDB_EXTRACTdata extraction
MAR345data collection
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing
BUSTERrefinement

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2014-05-07
    Type: Initial release
  • Version 1.1: 2017-07-26
    Changes: Source and taxonomy
  • Version 1.2: 2017-11-15
    Changes: Refinement description
  • Version 1.3: 2024-11-06
    Changes: Data collection, Database references, Derived calculations, Structure summary