NCIt definition : Tyrosine-protein kinase JAK1 (1154 aa, 133 kDa) is encoded by the human JAK1 gene.
This protein plays a role in both tyrosine phosphorylation and interferon-mediated
signaling.;
NCIt note : Janus kinases couple cytokine ligand binding to tyrosine phosphorylation of various
known signaling proteins and of a unique family of transcription factors termed the
signal transducers and activators of transcription, or STATs.;