4U79

Crystal structure of human JNK3 in complex with a benzenesulfonamide inhibitor.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.23 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.218 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Unfolded Protein Response in Cancer: IRE1 alpha Inhibition by Selective Kinase Ligands Does Not Impair Tumor Cell Viability.

Harrington, P.E.Biswas, K.Malwitz, D.Tasker, A.S.Mohr, C.Andrews, K.L.Dellamaggiore, K.Kendall, R.Beckmann, H.Jaeckel, P.Materna-Reichelt, S.Allen, J.R.Lipford, J.R.

(2015) ACS Med Chem Lett 6: 68-72

  • DOI: 10.1021/ml500315b
  • Primary Citation of Related Structures:  
    4U6R, 4U79

  • PubMed Abstract: 
  • The kinase/endonuclease inositol requiring enzyme 1 (IRE1α), one of the sensors of unfolded protein accumulation in the endoplasmic reticulum that triggers the unfolded protein response (UPR), has been investigated as an anticancer target. We identified ...

    The kinase/endonuclease inositol requiring enzyme 1 (IRE1α), one of the sensors of unfolded protein accumulation in the endoplasmic reticulum that triggers the unfolded protein response (UPR), has been investigated as an anticancer target. We identified potent allosteric inhibitors of IRE1α endonuclease activity that bound to the kinase site on the enzyme. Structure-activity relationship (SAR) studies led to 16 and 18, which were selective in kinase screens and were potent against recombinant IRE1α endonuclease as well as cellular IRE1α. The first X-ray crystal structure of a kinase inhibitor (16) bound to hIRE1α was obtained. Screening of native tumor cell lines (>300) against selective IRE1α inhibitors failed to demonstrate any effect on cellular viability. These results suggest that IRE1α activity is not essential for viability in most tumor cell lines, in vitro, and that interfering with the survival functions of the UPR may not be an effective strategy to block tumorigenesis.


    Organizational Affiliation

    Departments of Medicinal Chemistry, Molecular Structure, and Oncology, Amgen, Inc. , One Amgen Center Drive, Thousand Oaks, California 93012, United States.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Mitogen-activated protein kinase 10 A364Homo sapiensMutation(s): 0 
Gene Names: MAPK10JNK3JNK3APRKM10SAPK1B
EC: 2.7.11.24
Find proteins for P53779 (Homo sapiens)
Explore P53779 
Go to UniProtKB:  P53779
NIH Common Fund Data Resources
PHAROS:  P53779
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
3EL
Query on 3EL

Download Ideal Coordinates CCD File 
A
N-{4-[(3-{2-[(trans-4-aminocyclohexyl)amino]pyrimidin-4-yl}pyridin-2-yl)oxy]naphthalen-1-yl}benzenesulfonamide
C31 H30 N6 O3 S
DXCOZKXVDMXKGR-HZCBDIJESA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.23 Å
  • R-Value Free: 0.249 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.218 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 54.933α = 90
b = 71.632β = 90
c = 106.595γ = 90
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2014-07-30 
  • Released Date: 2014-10-08 
  • Deposition Author(s): Mohr, C.

Revision History 

  • Version 1.0: 2014-10-08
    Type: Initial release
  • Version 1.1: 2015-01-28
    Changes: Database references