4GEB

Kynurenine Aminotransferase II Inhibitors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.165 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

PF-04859989 as a template for structure-based drug design: identification of new pyrazole series of irreversible KAT II inhibitors with improved lipophilic efficiency.

Dounay, A.B.Anderson, M.Bechle, B.M.Evrard, E.Gan, X.Kim, J.Y.McAllister, L.A.Pandit, J.Rong, S.Salafia, M.A.Tuttle, J.B.Zawadzke, L.E.Verhoest, P.R.

(2013) Bioorg.Med.Chem.Lett. 23: 1961-1966

  • DOI: 10.1016/j.bmcl.2013.02.039

  • PubMed Abstract: 
  • The structure-based design, synthesis, and biological evaluation of a new pyrazole series of irreversible KAT II inhibitors are described herein. The modification of the inhibitor scaffold of 1 and 2 from a dihydroquinolinone core to a tetrahydropyra ...

    The structure-based design, synthesis, and biological evaluation of a new pyrazole series of irreversible KAT II inhibitors are described herein. The modification of the inhibitor scaffold of 1 and 2 from a dihydroquinolinone core to a tetrahydropyrazolopyridinone core led to discovery of a new series of potent KAT II inhibitors with excellent physicochemical properties. Compound 20 is the most potent and lipophilically efficient of these new pyrazole analogs, with a k(inact)/K(i) value of 112,000 M(-1)s(-1) and lipophilic efficiency (LipE) of 8.53. The X-ray crystal structure of 20 with KAT II demonstrates key features that contribute to this remarkable potency and binding efficiency.


    Organizational Affiliation

    Pfizer Worldwide Research and Development, Neuroscience Medicinal Chemistry, Groton Laboratories, Eastern Point Road, Groton, CT 06340, USA. amy.dounay@coloradocollege.edu




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 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A, B
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
0LD
Query on 0LD

Download SDF File 
Download CCD File 
A, B
(5-hydroxy-4-{[(7-hydroxy-6-oxo-2-phenyl-6,7-dihydro-2H-pyrazolo[3,4-b]pyridin-5-yl)amino]methyl}-6-methylpyridin-3-yl)methyl dihydrogen phosphate
C20 H20 N5 O7 P
FBCNGBFCTRTRCW-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.192 
  • R-Value Work: 0.165 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 85.616α = 90.00
b = 114.682β = 90.00
c = 116.523γ = 90.00
Software Package:
Software NamePurpose
BUSTERrefinement
JDirectordata collection
PHASERphasing
BUSTER-TNTrefinement
SCALAdata scaling
XDSdata reduction
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2012-08-01 
  • Released Date: 2013-03-20 
  • Deposition Author(s): Pandit, J.

Revision History 

  • Version 1.0: 2013-03-20
    Type: Initial release
  • Version 1.1: 2013-05-22
    Type: Database references