ITK (IL-2-inducible T-cell kinase) is a member of the Tec family of nonreceptor tyrosine kinases that are critically important for the growth, differentiation and activation of myeloid-, mast- and B-cells. ITK has a critical role in T-cell growth, signaling and function.

Gene Data

ITK Inhibitors

Cat. No. Product Name / Activity
4726 CTA 056
ITK inhibitor
5401 GSK 2250665A
Itk inhibitor
4710 PF 06465469
Potent ITK inhibitor; also inhibits BTK

ITK (IL-2-inducible T-cell kinase) EC is a member of the Tec family of nonreceptor tyrosine kinases, which includes Bruton's tyrosine kinase. It is critical for the growth, differentiation and activation of T-cells. ITK is expressed in T-lymphocytes and acts downstream from T-cell receptor (TCR) stimulation. Activation of PI 3-kinase results in the accumulation of PIP3, which in turn leads to the recruitment of ITK to the membrane, its activation and subsequent autophosphorylation. Activated ITK interacts with and phosphorylates PLCγ, eventually leading to Ca2+ mobilization, transcription, cytokine release and actin reorganization.

ITK signaling is important in the protective response of the Th2 effector cells to infection, mediating the secretion of interleukins 4, 5, 10 and 13. The enzyme also has a role in the production of IL-17A by Th17 cells, which is essential for antimicrobial activity as well as being involved in autoimmune disorders. ITK is a target for research in multiple sclerosis, cancer (both hematological malignancies and solid tumors) and graft versus host disease.

External sources of pharmacological information for ITK :

ITK Gene Data

Gene Species Gene Symbol Gene Accession No. Protein Accession No.
ITK Human ITK NM_005546 Q08881
Mouse Itk NM_001281965 Q03526
Rat Itk NM_001108825 NP_001102295