6CDT image
Deposition Date 2018-02-09
Release Date 2019-02-20
Last Version Date 2023-10-04
Entry Detail
PDB ID:
6CDT
Keywords:
Title:
Structure of Human Anaplastic Lymphoma Kinase Domain
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Method Details:
Experimental Method:
Resolution:
1.80 Å
R-Value Free:
0.22
R-Value Work:
0.19
R-Value Observed:
0.19
Space Group:
P 21 21 21
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:ALK tyrosine kinase receptor
Gene (Uniprot):ALK
Chain IDs:A
Chain Length:327
Number of Molecules:1
Biological Source:Homo sapiens
Primary Citation
Reviving B-Factors: Activating ALK Mutations Increase Protein Dynamics of the Unphosphorylated Kinase.
ACS Med Chem Lett 9 872 877 (2018)
PMID: 30258533 DOI: 10.1021/acsmedchemlett.8b00348

Abstact

Anaplastic lymphoma kinase (ALK) is a receptor tyrosine kinase that can become oncogenic by activating mutations or overexpression. Full kinetic characterization of both phosphorylated and nonphosphorylated wildtype and mutant ALK kinase domain was done. Our structure-based drug design programs directed at ALK allowed us to interrogate whether X-ray crystallography data could be used to support the hypothesis that activation of ALK by mutation occurs due to increased protein dynamics. Crystallographic B-factors were converted to normalized B-factors, which allowed analysis of wildtype ALK, ALK-C1156Y, and ALK-L1196M. This data suggests that mobility of the P-loop, αC-helix, and activation loop (A-loop) may be important in catalytic activity increases, with or without phosphorylation. Both molecular dynamics simulations and hydrogen-deuterium exchange experimental data corroborated the normalized B-factors data.

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Primary Citation of related structures