Involved in the costimulatory signal, essential for T- cell proliferation and production of IL10 and IFNG, in an IL2- dependent and a PDCD1-independent manner. Interaction with PDCD1 inhibits T-cell proliferation and cytokine production. Belongs to the immunoglobulin superfamily. BTN/MOG family. 3 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Protein type: Membrane protein, integral
Cellular Component: integral to membrane; plasma membrane; endomembrane system; external side of plasma membrane
Molecular Function: protein binding
Biological Process: cell surface receptor linked signal transduction; negative regulation of T cell proliferation; T cell costimulation; positive regulation of T cell proliferation; immune response; signal transduction
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.