IL15 binds IL2RB:JAK1 and IL2RG:JAK3

Stable Identifier
Reaction [uncertain]
Homo sapiens
IL2RB and IL2RG dimerize after IL15 binding, IL2RB:JAK1 and IL2RG:JAK3 dimerize after IL15 binding
Locations in the PathwayBrowser
SVG |   | PPTX  | SBGN
Click the image above or here to open this reaction in the Pathway Browser
The layout of this reaction may differ from that in the pathway view due to the constraints in pathway layout

The Interleukin-15 (IL15) / Interleukin-15 receptor subunit alpha (IL15RA, IL15Rα) complex binds Interleukin-2 receptor subunit beta (IL2RB, IL2Rβ), which is associated with Tyrosine-protein kinase JAK1 (JAK1) and Cytokine receptor common subunit gamma (IL2RG, IL2Rγ), which is associated with Tyrosine-protein kinase JAK3 (JAK3) (Johnston et al. 1995). The heterodimer of IL2RB and IL2RG can bind IL15 with low affinity but high affinity binding requires a third component, IL15RA (Giri et al. 1994, 1995, Anderson et al. 1995). This is a Black Box Event because it is not clear whether the β and γ subunits pre-associate before binding IL15:IL15RA.

Literature References
PubMed ID Title Journal Year
7568001 Tyrosine phosphorylation and activation of STAT5, STAT3, and Janus kinases by interleukins 2 and 15

Johnston, JA, Bacon, CM, Finbloom, DS, Rees, RC, Kaplan, D, Shibuya, K, Ortaldo, JR, Gupta, S, Chen, YQ, Giri, JD

Proc Natl Acad Sci U S A 1995
Participant Of
Orthologous Events
Cite Us!