JAK 1, JAK 1A, JAK 1B, JAK1, JAK1A, JAK1B, Janus kinase 1 a protein tyrosine kinase, Janus kinase 1, JTK3, Tyrosine protein kinase JAK 1, Tyrosine protein kinase JAK1, JAK1_HUMAN.
Janus kinase 1 (JAK1) is a member of a new class of non-receptor protein-tyrosine kinases (PTK) characterized by the presence of a second phosphotransferase-related domain immediately N-terminal to the PTK domain. The second phosphotransferase domain bea