Janus kinase
FAMILY OF INTRACELLULAR TYROSINE KINASES
Janus family kinases; Just another kinase; Janus Kinase; Janus kinases; Janus protein kinase; JAK kinase
Janus kinase (JAK) is a family of intracellular, non-receptor tyrosine kinases that transduce cytokine-mediated signals via the JAK-STAT pathway. They were initially named "just another kinase" 1 and 2 (since they were just two of many discoveries in a PCR-based screen of kinases), but were ultimately published as "Janus kinase".