JAK 1, JAK 1A, JAK 1B, JAK-1, JAK1, JAK1_HUMAN, JAK1A, JAK1B, Janus kinase 1 (a protein tyrosine kinase), Janus kinase 1, JTK3, Tyrosine protein kinase JAK 1, Tyrosine protein kinase JAK1, Tyrosine-protein kinase JAK1.
Tyrosine kinase of the non-receptor type, involved in the IFN-alpha/beta/gamma signal pathway. Kinase partner for the interleukin (IL)-2 receptor.