4XLI image
Deposition Date 2015-01-13
Release Date 2015-04-01
Last Version Date 2023-09-27
Entry Detail
PDB ID:
4XLI
Title:
Crystal structure of Abl2/Arg kinase in complex with dasatinib
Biological Source:
Source Organism:
Mus musculus (Taxon ID: 10090)
Host Organism:
Method Details:
Experimental Method:
Resolution:
2.50 Å
R-Value Free:
0.20
R-Value Work:
0.15
R-Value Observed:
0.15
Space Group:
P 65
Macromolecular Entities
Polymer Type:polypeptide(L)
Molecule:Non-specific protein-tyrosine kinase
Chain IDs:A, B
Chain Length:268
Number of Molecules:2
Biological Source:Mus musculus
Primary Citation
Structure of the ABL2/ARG kinase in complex with dasatinib.
Acta Crystallogr.,Sect.F 71 443 448 (2015)
PMID: 25849507 DOI: 10.1107/S2053230X15004793

Abstact

ABL2/ARG (ABL-related gene) belongs to the ABL (Abelson tyrosine-protein kinase) family of tyrosine kinases. ARG plays important roles in cell morphogenesis, motility, growth and survival, and many of these biological roles overlap with the cellular functions of the ABL kinase. Chronic myeloid leukemia (CML) is associated with constitutive ABL kinase activation resulting from fusion between parts of the breakpoint cluster region (BCR) and ABL1 genes. Similarly, fusion of the ETV6 (Tel) and ARG genes drives some forms of T-cell acute lymphoblastic leukemia (T-ALL) and acute myeloid leukemia (AML). Dasatinib is a tyrosine kinase inhibitor used for the treatment of CML by inhibiting ABL, and while it also inhibits ARG, there is currently no structure of ARG in complex with dasatinib. Here, the co-crystal structure of the mouse ARG catalytic domain with dasatinib at 2.5 Å resolution is reported. Dasatinib-bound ARG is found in the DFG-in conformation although it is nonphosphorylated on the activation-loop tyrosine. In this structure the glycine-rich P-loop is found in a relatively open conformation compared with other known ABL family-inhibitor complex structures.

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Primary Citation of related structures