title: The Jak-STAT pathway.
abstract: A variety of important cellular functions are regulated by cytokines. The Jak-STAT pathway is one of the important signaling pathways downstream of cytokine receptors. Following binding of a ligand to its cognate receptor, receptor-associated Jaks are activated. STAT proteins are then in turn activated by tyrosine phosphorylation by Jak kinases, allowing their dimerization and subsequent translocation into the nucleus, where they modulate expression of target genes. Indispensable functions of Jaks and STATs in cytokine signaling in vivo have been revealed through knockout mouse studies. Moreover, the recent discovery of the CIS/SOCS/JAB/SSI family of inhibitors has contributed to understanding how this pathway is negatively regulated.
authors.affiliation: Laboratory of Molecular Immunology, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892-1674, USA.
authors.forename: K
authors.initials: K
authors.lastname: Imada
authors.forename: W J
authors.initials: WJ
authors.lastname: Leonard
mesh_terms: D000818:Animals; D002471:Cell Transformation, Neoplastic; D004268:DNA-Binding Proteins / Q000502:physiology*; D006801:Humans; D007376:Interleukin-2 / Q000494:pharmacology; D053613:Janus Kinase 1; D053614:Janus Kinase 2; D053616:Janus Kinase 3; D007694:Killer Cells, Natural / Q000502:physiology; D051379:Mice; D008894:Milk Proteins; D011505:Protein-Tyrosine Kinases / Q000502:physiology*; D011518:Proto-Oncogene Proteins; D050794:STAT1 Transcription Factor; D050796:STAT3 Transcription Factor; D050797:STAT4 Transcription Factor; D050799:STAT5 Transcription Factor; D050800:STAT6 Transcription Factor; D015534:Trans-Activators / Q000502:physiology*
chemical_list: D004268:DNA-Binding Proteins; D007376:Interleukin-2; D008894:Milk Proteins; D011518:Proto-Oncogene Proteins; D050794:STAT1 Transcription Factor; C494079:STAT1 protein, human; D050796:STAT3 Transcription Factor; C494086:STAT3 protein, human; D050797:STAT4 Transcription Factor; C494090:STAT4 protein, human; D050799:STAT5 Transcription Factor; D050800:STAT6 Transcription Factor; C494101:STAT6 protein, human; C494080:Stat1 protein, mouse; C494087:Stat3 protein, mouse; C494091:Stat4 protein, mouse; C494100:Stat6 protein, mouse; D015534:Trans-Activators; D011505:Protein-Tyrosine Kinases; C507904:JAK1 protein, human; C507924:JAK2 protein, human; C507933:JAK3 protein, human; C507905:Jak1 protein, mouse; C507926:Jak2 protein, mouse; C507935:Jak3 protein, mouse; D053613:Janus Kinase 1; D053614:Janus Kinase 2; D053616:Janus Kinase 3