6YTY

CLK3 A319V mutant bound with benzothiazole Tg003 (Cpd 2)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.76 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.188 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

DFG-1 Residue Controls Inhibitor Binding Mode and Affinity, Providing a Basis for Rational Design of Kinase Inhibitor Selectivity.

Schroder, M.Bullock, A.N.Fedorov, O.Bracher, F.Chaikuad, A.Knapp, S.

(2020) J Med Chem 63: 10224-10234

  • DOI: 10.1021/acs.jmedchem.0c00898
  • Primary Citation of Related Structures:  
    6Z2V, 6YTI, 6YU1, 6YTA, 6YTD, 6YTE, 6YTG, 6YTY, 6YTW, 6ZLN

  • PubMed Abstract: 
  • Selectivity remains a challenge for ATP-mimetic kinase inhibitors, an issue that may be overcome by targeting unique residues or binding pockets. However, to date only few strategies have been developed. Here we identify that bulky residues located N-terminal to the DFG motif (DFG-1) represent an opportunity for designing highly selective inhibitors with unexpected binding modes ...

    Selectivity remains a challenge for ATP-mimetic kinase inhibitors, an issue that may be overcome by targeting unique residues or binding pockets. However, to date only few strategies have been developed. Here we identify that bulky residues located N-terminal to the DFG motif (DFG-1) represent an opportunity for designing highly selective inhibitors with unexpected binding modes. We demonstrate that several diverse inhibitors exerted selective, noncanonical binding modes that exclusively target large hydrophobic DFG-1 residues present in many kinases including PIM, CK1, DAPK, and CLK. By use of the CLK family as a model, structural and biochemical data revealed that the DFG-1 valine controlled a noncanonical binding mode in CLK1, providing a rationale for selectivity over the closely related CLK3 which harbors a smaller DFG-1 alanine. Our data suggest that targeting the restricted back pocket in the small fraction of kinases that harbor bulky DFG-1 residues offers a versatile selectivity filter for inhibitor design.


    Organizational Affiliation

    German Translational Cancer Network (DKTK), Frankfurt/Mainz Site, 60438 Frankfurt, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Dual specificity protein kinase CLK3A360Homo sapiensMutation(s): 1 
Gene Names: CLK3
EC: 2.7.12.1
UniProt & NIH Common Fund Data Resources
Find proteins for P49761 (Homo sapiens)
Explore P49761 
Go to UniProtKB:  P49761
PHAROS:  P49761
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
EAE
Query on EAE

Download Ideal Coordinates CCD File 
C [auth A](1~{Z})-1-(3-ethyl-5-methoxy-1,3-benzothiazol-2-ylidene)propan-2-one
C13 H15 N O2 S
BGVLELSCIHASRV-QPEQYQDCSA-N
 Ligand Interaction
EDO
Query on EDO

Download Ideal Coordinates CCD File 
B [auth A]1,2-ETHANEDIOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.76 Å
  • R-Value Free: 0.224 
  • R-Value Work: 0.186 
  • R-Value Observed: 0.188 
  • Space Group: I 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 83.468α = 90
b = 44.949β = 110.54
c = 106.359γ = 90
Software Package:
Software NamePurpose
Aimlessdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-07-15
    Type: Initial release
  • Version 1.1: 2020-10-14
    Changes: Database references