Anaplastic lymphoma kinase (ALK) catalytic domain complexed with novel inhibitor 3-sulfonylpyrazol-4-amino pyrimidine

Experimental Data Snapshot

  • Resolution: 2.12 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.213 

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Design and synthesis of novel 3-sulfonylpyrazol-4-amino pyrimidines as potent anaplastic lymphoma kinase (ALK) inhibitors.

Zhang, P.Dong, J.Zhong, B.Zhang, D.Yuan, H.Jin, C.Xu, X.Li, H.Zhou, Y.Liang, Z.Ji, M.Xu, T.Song, G.Zhang, L.Chen, G.Meng, X.Sun, D.Shih, J.Zhang, R.Hou, G.Wang, C.Jin, Y.Yang, Q.

(2016) Bioorg Med Chem Lett 26: 1910-1918

  • DOI: https://doi.org/10.1016/j.bmcl.2016.03.017
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Anaplastic lymphoma kinase (ALK) is a highly attractive therapeutic target for the treatment of some non-small cell lung cancer patients. This Letter describes the further SAR exploration on the novel 3-sulfonylpyrazol-4-amino pyrimidine scaffold. This work identified a compound 53 with very good in vitro/in vivo efficacies, good DMPK properties together with better hERG tolerability and it is currently being profiled for the evaluation as a potential pre-clinical candidate.

  • Organizational Affiliation

    Department of Applied Chemistry, Beijing Institute of Technology, Zhongguancun South Street, Beijing 100081, China; Beijing Pearl Biotech Ltd, No. 203, Section 2, Wangjing Lize Zhongyuan, Chaoyang District, Beijing 100102, China.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ALK tyrosine kinase receptor327Homo sapiensMutation(s): 0 
Gene Names: ALK
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UM73 (Homo sapiens)
Explore Q9UM73 
Go to UniProtKB:  Q9UM73
GTEx:  ENSG00000171094 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9UM73
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on CZ4

Download Ideal Coordinates CCD File 
B [auth A]5-chloro-N~2~-{5-methyl-4-(1-methylpiperidin-4-yl)-2-[(propan-2-yl)oxy]phenyl}-N~4~-{1-methyl-3-[(propan-2-yl)sulfonyl]-1H-pyrazol-4-yl}pyrimidine-2,4-diamine
C27 H38 Cl N7 O3 S
Binding Affinity Annotations 
IDSourceBinding Affinity
CZ4 BindingDB:  5IMX IC50: min: 4, max: 8 (nM) from 2 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.12 Å
  • R-Value Free: 0.259 
  • R-Value Work: 0.210 
  • R-Value Observed: 0.213 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.698α = 90
b = 56.759β = 90
c = 104.556γ = 90
Software Package:
Software NamePurpose
SCALEPACKdata scaling
PDB_EXTRACTdata extraction

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-05-04
    Type: Initial release