4BIE

Crystal Structures of Ask1-inhibitor Complexes

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.36 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.212 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

Crystal Structures of Ask1-Inhibtor Complexes Provide a Platform for Structure Based Drug Design.

Singh, O., Shillings, A., Craggs, P., Wall, I., Rowland, P., Skarzynski, T., Hobbs, C.I., Hardwick, P., Tanner, R., Blunt, M., Witty, D.R., Smith, K.J.

(2013) Protein Sci 22: 1071

  • DOI: 10.1002/pro.2298
  • Primary Citation of Related Structures:  
    4BF2, 4BHN, 4BIC, 4BID, 4BIE, 4BIB

  • PubMed Abstract: 

    • ASK1, a member of the MAPK Kinase Kinase family of proteins has been shown to play a key role in cancer, neurodegeneration and cardiovascular diseases and is emerging as a possible drug target. Here we describe a 'replacement-soaking' method that has ena ...

    ASK1, a member of the MAPK Kinase Kinase family of proteins has been shown to play a key role in cancer, neurodegeneration and cardiovascular diseases and is emerging as a possible drug target. Here we describe a 'replacement-soaking' method that has enabled the high-throughput X-ray structure determination of ASK1/ligand complexes. Comparison of the X-ray structures of five ASK1/ligand complexes from 3 different chemotypes illustrates that the ASK1 ATP binding site is able to accommodate a range of chemical diversity and different binding modes. The replacement-soaking system is also able to tolerate some protein flexibility. This crystal system provides a robust platform for ASK1/ligand structure determination and future structure based drug design.

    Organizational Affiliation: 

    GlaxoSmithKline, Gunnels Wood Road, Stevenage, Hertfordshire, SG1 2NY, United Kingdom.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
MITOGEN-ACTIVATED PROTEIN KINASE KINASE KINASE 5 A, B318Homo sapiensMutation(s): 1 
Gene Names: MAP3K5, ASK1, MAPKKK5, MEKK5
EC: 2.7.11.25
Find proteins for Q99683 (Homo sapiens)
Explore Q99683 
Go to UniProtKB:  Q99683
NIH Common Fund Data Resources
PHAROS:  Q99683
GTEx:  ENSG00000197442
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
IE6
Query on IE6
Download Ideal Coordinates CCD File 
A, B
N-(2-aminoethyl)-5-{2-methyl-1H-pyrrolo[2,3-b]pyridin-4-yl}thiophene-2-sulfonamide
C14 H16 N4 O2 S2
AETIDEIXYCAWOW-UHFFFAOYSA-N		 Ligand Interaction
GOL
Query on GOL
Download Ideal Coordinates CCD File 
A, B
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N		 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
IE6IC50:  251   nM  BindingDB
IE6IC50:  790   nM  Binding MOAD
IE6IC50 :  250   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.36 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.212 
  • Space Group: P 65 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 77.95α = 90
b = 77.95β = 90
c = 418.43γ = 120
Software Package:
Software NamePurpose
BUSTERrefinement
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-07-03
    Type: Initial release
  • Version 1.1: 2013-08-07
    Changes: Database references