Anaplastic Lymphoma Kinase with a novel carboline inhibitor

Experimental Data Snapshot

  • Resolution: 1.65 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.197 

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Ligand Structure Quality Assessment 

This is version 1.1 of the entry. See complete history


Discovery of Novel alpha-Carboline Inhibitors of the Anaplastic Lymphoma Kinase.

Mologni, L.Tardy, S.Zambon, A.Orsato, A.Bisson, W.H.Ceccon, M.Viltadi, M.D'Attoma, J.Pannilunghi, S.Vece, V.Bertho, J.Goekjian, P.Scapozza, L.Gambacorti-Passerini, C.

(2022) ACS Omega 7: 17083-17097

  • DOI: https://doi.org/10.1021/acsomega.2c00507
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    The anaplastic lymphoma kinase (ALK) is abnormally expressed and hyperactivated in a number of tumors and represents an ideal therapeutic target. Despite excellent clinical responses to ALK inhibition, drug resistance still represents an issue and novel compounds that overcome drug-resistant mutants are needed. We designed, synthesized, and evaluated a large series of azacarbazole inhibitors. Several lead compounds endowed with submicromolar potency were identified. Compound 149 showed selective inhibition of native and mutant drug-refractory ALK kinase in vitro as well as in a Ba/F3 model and in human ALK+ lymphoma cells. The three-dimensional (3D) structure of a 149 :ALK-KD cocrystal is reported, showing extensive interaction through the hinge region and the catalytic lysine 1150.

  • Organizational Affiliation

    Dept. of Medicine and Surgery, University of Milano-Bicocca, Monza 20900, Italy.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
ALK tyrosine kinase receptor321Homo 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
NRR (Subject of Investigation/LOI)
Query on NRR

Download Ideal Coordinates CCD File 
B [auth A]3-(dimethylamino)-1-[3-[4-(4-methylpiperazin-1-yl)phenyl]-9~{H}-pyrido[2,3-b]indol-6-yl]prop-2-en-1-one
C27 H29 N5 O
Experimental Data & Validation

Experimental Data

  • Resolution: 1.65 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.197 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.714α = 90
b = 56.593β = 90
c = 103.243γ = 90
Software Package:
Software NamePurpose
autoPROCdata reduction
autoPROCdata scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Other governmentItalyItalian Ministry of Research 3/13
Italian Association for Cancer ResearchItalyIG-24828
European CommissionEuropean UnionITN 675712 and 503467

Revision History  (Full details and data files)

  • Version 1.0: 2022-09-14
    Type: Initial release
  • Version 1.1: 2024-01-31
    Changes: Data collection, Refinement description