4RA5

Human Protein Kinase C THETA IN COMPLEX WITH LIGAND COMPOUND 11a (6-[(1,3-Dimethyl-azetidin-3-yl)-methyl-amino]-4(R)-methyl-7-phenyl-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-one)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.61 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.228 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Optimized Protein Kinase C theta (PKC theta ) Inhibitors Reveal Only Modest Anti-inflammatory Efficacy in a Rodent Model of Arthritis.

George, D.M.Breinlinger, E.C.Argiriadi, M.A.Zhang, Y.Wang, J.Bansal-Pakala, P.Duignan, D.B.Honore, P.Lang, Q.Mittelstadt, S.Rundell, L.Schwartz, A.Sun, J.Edmunds, J.J.

(2015) J.Med.Chem. 58: 333-346

  • DOI: 10.1021/jm5013006
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • We previously demonstrated that selective inhibition of protein kinase Cθ (PKCθ) with triazinone 1 resulted in dose-dependent reduction of paw swelling in a mouse model of arthritis.1,2 However, a high concentration was required for efficacy, thus pr ...

    We previously demonstrated that selective inhibition of protein kinase Cθ (PKCθ) with triazinone 1 resulted in dose-dependent reduction of paw swelling in a mouse model of arthritis.1,2 However, a high concentration was required for efficacy, thus providing only a minimal safety window. Herein we describe a strategy to deliver safer compounds based on the hypothesis that optimization of potency in concert with good oral pharmacokinetic (PK) properties would enable in vivo efficacy at reduced exposures, resulting in an improved safety window. Ultimately, transformation of 1 yielded analogues that demonstrated excellent potency and PK properties and fully inhibited IL-2 production in an acute model. In spite of good exposure, twice-a-day treatment with 17l in the glucose-6-phosphate isomerase chronic in vivo mouse model of arthritis yielded only moderate efficacy. On the basis of the exposure achieved, we conclude that PKCθ inhibition alone is insufficient for complete efficacy in this rodent arthritis model.


    Organizational Affiliation

    AbbVie Bioresearch Center , 381 Plantation Street, Worcester, Massachusetts 01605, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HUMAN PROTEIN KINASE C THETA
A, B
334Homo sapiensMutation(s): 2 
Gene Names: PRKCQ (PRKCT)
EC: 2.7.11.13
Find proteins for Q04759 (Homo sapiens)
Go to Gene View: PRKCQ
Go to UniProtKB:  Q04759
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
EDO
Query on EDO

Download SDF File 
Download CCD File 
A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
3L0
Query on 3L0

Download SDF File 
Download CCD File 
A, B
(1R)-9-[(1,3-dimethylazetidin-3-yl)(methyl)amino]-1-methyl-8-phenyl-3,5-dihydro[1,2,4]triazino[3,4-c][1,4]benzoxazin-2(1H)-one
(6-[(1,3-Dimethyl-azetidin-3-yl)-methyl-amino]-4(R)-methyl-7-phenyl-2,10-dihydro-9-oxa-1,2,4a-triaza-phenanthren-3-one)
C23 H27 N5 O2
RGCJJZQGWXZHJQ-OAHLLOKOSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
SEP
Query on SEP
A, B
L-PEPTIDE LINKINGC3 H8 N O6 PSER
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
3L0IC50: 4 nM (99) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.61 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.228 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 74.822α = 90.00
b = 77.026β = 90.00
c = 147.547γ = 90.00
Software Package:
Software NamePurpose
XSCALEdata scaling
REFMACrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-10-08
    Type: Initial release
  • Version 1.1: 2015-02-04
    Type: Database references