Receptor for interleukin-2. Non-covalent dimer of an alpha and a beta subunit. IL2R exists in 3 different forms: a high affinity dimer, an intermediate affinity monomer (beta subunit), and a low affinity monomer (alpha subunit). The high and intermediate affinity forms also associate with a gamma subunit. Note: This description may include information from UniProtKB.
Cellular Component: external side of plasma membrane; integral component of membrane; intracellular; plasma membrane
Molecular Function: drug binding; interleukin-2 binding; interleukin-2 receptor activity; protein binding; Ras guanyl-nucleotide exchange factor activity
Biological Process: activated T cell apoptosis; apoptosis; cell proliferation; cell surface receptor signaling pathway; immune response; inflammatory response; inflammatory response to antigenic stimulus; interleukin-2-mediated signaling pathway; MAPK cascade; negative regulation of defense response to virus; negative regulation of immune response; negative regulation of inflammatory response; negative regulation of T cell proliferation; Notch signaling pathway; positive regulation of activated T cell proliferation; positive regulation of T cell differentiation; regulation of molecular function; regulation of regulatory T cell differentiation; regulation of T cell homeostatic proliferation; regulation of T cell tolerance induction