Interleukin-7 receptor
![IL-7 receptor and signaling, common γ chain (blue) and IL-7 receptor-α (green)](/Images/godic/202501/20/IL-7receptor_and_signaling5201.jpg")
![](/Images/godic/202501/20/Protein_IL2RG_PDB_2b5i5201.png")
The interleukin-7 receptor is a protein found on the surface of cells. It is made up of two different smaller protein chains - i.e. it is a heterodimer, and consists of two subunits, interleukin-7 receptor-α (CD127) and common-γ chain receptor (CD132). The common-γ chain receptors is shared with various cytokines, including interleukin-2, -4, -9, and -15. Interleukin-7 receptor is expressed on various cell types, including naive and memory T cells and many others.