6GY1

rat COMT in complex with inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.214 

wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Optimization of 8-Hydroxyquinolines as Inhibitors of Catechol O-Methyltransferase.

Buchler, I.Akuma, D.Au, V.Carr, G.de Leon, P.DePasquale, M.Ernst, G.Huang, Y.Kimos, M.Kolobova, A.Poslusney, M.Wei, H.Swinnen, D.Montel, F.Moureau, F.Jigorel, E.Schulze, M.E.D.Wood, M.Barrow, J.C.

(2018) J Med Chem 61: 9647-9665

  • DOI: https://doi.org/10.1021/acs.jmedchem.8b01126
  • Primary Citation of Related Structures:  
    6GY1

  • PubMed Abstract: 

    A series of 8-hydroxy quinolines were identified as potent inhibitors of catechol O-methyltransferase (COMT) with selectivity for the membrane-bound form of the enzyme. Small substituents at the 7-position of the quinoline were found to increase metabolic stability without sacrificing potency. Compounds with good pharmacokinetics and brain penetration were identified and demonstrated in vivo modulation of dopamine metabolites in the brain. An X-ray cocrystal structure of compound 21 in the S-COMT active site shows chelation of the active site magnesium similar to catechol-based inhibitors. These compounds should prove useful for treatment of many neurological and psychiatric conditions associated with compromised cortical dopamine signaling.


  • Organizational Affiliation

    Lieber Institute for Brain Development , 855 North Wolfe Street , Baltimore , Maryland 21205 , United States.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Catechol O-methyltransferase223Rattus norvegicusMutation(s): 0 
Gene Names: Comt
EC: 2.1.1.6
UniProt
Find proteins for P22734 (Rattus norvegicus)
Explore P22734 
Go to UniProtKB:  P22734
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP22734
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
FGQ Binding MOAD:  6GY1 IC50: 501 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.212 
  • R-Value Observed: 0.214 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.41α = 90
b = 50.41β = 90
c = 168.332γ = 120
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing
PHENIXrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2018-10-10
    Type: Initial release
  • Version 1.1: 2018-11-21
    Changes: Data collection, Database references, Structure summary
  • Version 1.2: 2024-01-17
    Changes: Data collection, Database references, Refinement description