7R7K

Structure of Human Anaplastic Lymphoma Kinase Domain in complex with (4-[6-amino-5-[(1~{R})-1-[5-fluoro-2-(triazol-2-yl)phenyl]ethoxy]-3-pyridyl]isoindolin-1-one)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.83 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.195 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.2 of the entry. See complete history


Literature

Analysis of lorlatinib analogs reveals a roadmap for targeting diverse compound resistance mutations in ALK-positive lung cancer.

Shiba-Ishii, A.Johnson, T.W.Dagogo-Jack, I.Mino-Kenudson, M.Johnson, T.R.Wei, P.Weinrich, S.L.McTigue, M.A.Walcott, M.A.Nguyen-Phuong, L.Dionne, K.Acker, A.Kiedrowski, L.A.Do, A.Peterson, J.L.Barth, J.L.Yeap, B.Y.Gainor, J.F.Lin, J.J.Yoda, S.Hata, A.N.

(2022) Nat Cancer 3: 710-722

  • DOI: https://doi.org/10.1038/s43018-022-00399-6
  • Primary Citation of Related Structures:  
    7R7K, 7R7R

  • PubMed Abstract: 

    Lorlatinib is currently the most advanced, potent and selective anaplastic lymphoma kinase (ALK) tyrosine kinase inhibitor for the treatment of ALK-positive non-small cell lung cancer in the clinic; however, diverse compound ALK mutations driving therapy resistance emerge. Here, we determine the spectrum of lorlatinib-resistant compound ALK mutations in patients, following treatment with lorlatinib, the majority of which involve ALK G1202R or I1171N/S/T. We further identify structurally diverse lorlatinib analogs that harbor differential selective profiles against G1202R versus I1171N/S/T compound ALK mutations. Structural analysis revealed increased potency against compound mutations through improved inhibition of either G1202R or I1171N/S/T mutant kinases. Overall, we propose a classification of heterogenous ALK compound mutations enabling the development of distinct therapeutic strategies for precision targeting following sequential tyrosine kinase inhibitors.


  • Organizational Affiliation

    Massachusetts General Hospital Cancer Center, Charlestown, MA, USA.


Macromolecules
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
EC: 2.7.10.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UM73 (Homo sapiens)
Explore Q9UM73 
Go to UniProtKB:  Q9UM73
PHAROS:  Q9UM73
GTEx:  ENSG00000171094 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9UM73
Sequence Annotations
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
25J (Subject of Investigation/LOI)
Query on 25J

Download Ideal Coordinates CCD File 
B [auth A]4-(6-amino-5-{(1R)-1-[5-fluoro-2-(2H-1,2,3-triazol-2-yl)phenyl]ethoxy}pyridin-3-yl)-2,3-dihydro-1H-isoindol-1-one
C23 H19 F N6 O2
CKJMFMVVGMXESQ-CYBMUJFWSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.83 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.194 
  • R-Value Observed: 0.195 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.602α = 90
b = 57.389β = 90
c = 105.432γ = 90
Software Package:
Software NamePurpose
BUSTERrefinement
XDSdata reduction
SCALAdata scaling
CNSphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

  • Released Date: 2022-06-29 
  • Deposition Author(s): McTigue, M.

Revision History  (Full details and data files)

  • Version 1.0: 2022-06-29
    Type: Initial release
  • Version 1.1: 2022-08-10
    Changes: Database references
  • Version 1.2: 2023-10-18
    Changes: Data collection, Refinement description