Interleukin-15 receptor subunit alpha (IL15RA)

High-affinity receptor for interleukin-15. Can signal both in cis and trans where IL15R from one subset of cells introduces IL15 to neighboring IL2RG-expressing cells.

Expression of distinct isoforms may alter or interfere with signal transduction. Isoform 5, isoform 6, isoform 7 and isoform 8 don't bind IL15.