4GE7

Kynurenine Aminotransferase II Inhibitors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.178 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure-Based Design of Irreversible Human KAT II Inhibitors: Discovery of New Potency-Enhancing Interactions.

Tuttle, J.B.Anderson, M.Bechle, B.M.Campbell, B.M.Chang, C.Dounay, A.B.Evrard, E.Fonseca, K.R.Gan, X.Ghosh, S.Horner, W.James, L.C.Kim, J.Y.McAllister, L.A.Pandit, J.Parikh, V.D.Rago, B.J.Salafia, M.A.Strick, C.A.Zawadzke, L.E.Verhoest, P.R.

(2013) ACS Med Chem Lett 4: 37-40

  • DOI: 10.1021/ml300237v
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • A series of aryl hydroxamates recently have been disclosed as irreversible inhibitors of kynurenine amino transferase II (KAT II), an enzyme that may play a role in schizophrenia and other psychiatric and neurological disorders. The utilization of st ...

    A series of aryl hydroxamates recently have been disclosed as irreversible inhibitors of kynurenine amino transferase II (KAT II), an enzyme that may play a role in schizophrenia and other psychiatric and neurological disorders. The utilization of structure-activity relationships (SAR) in conjunction with X-ray crystallography led to the discovery of hydroxamate 4, a disubstituted analogue that has a significant potency enhancement due to a novel interaction with KAT II. The use of k inact/K i to assess potency was critical for understanding the SAR in this series and for identifying compounds with improved pharmacodynamic profiles.


    Organizational Affiliation

    Pfizer Worldwide Research and Development , Neuroscience Medicinal Chemistry, Eastern Point Road, Groton, Connecticut 06340, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Kynurenine/alpha-aminoadipate aminotransferase, mitochondrial
A, B
439Homo sapiensMutation(s): 2 
Gene Names: AADAT (KAT2)
Find proteins for Q8N5Z0 (Homo sapiens)
Go to Gene View: AADAT
Go to UniProtKB:  Q8N5Z0
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
0K5
Query on 0K5

Download SDF File 
Download CCD File 
A, B
(5-hydroxy-4-{[(1-hydroxy-2-oxo-6-phenoxy-1,2-dihydroquinolin-3-yl)amino]methyl}-6-methylpyridin-3-yl)methyl dihydrogen phosphate
C23 H22 N3 O8 P
BVDVCYBTLXSYJB-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CSO
Query on CSO
A, B
L-PEPTIDE LINKINGC3 H7 N O3 SCYS
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
0K5Ki: 7.1 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.202 
  • R-Value Work: 0.178 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 85.740α = 90.00
b = 114.968β = 90.00
c = 116.548γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
JDirectordata collection
BUSTER-TNTrefinement
HKL-2000data reduction
PDB_EXTRACTdata extraction
PHASERphasing
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2012-08-01 
  • Released Date: 2012-11-07 
  • Deposition Author(s): Pandit, J.

Revision History 

  • Version 1.0: 2012-11-07
    Type: Initial release
  • Version 1.1: 2014-07-16
    Type: Database references