CD2 Antibody – Mouse Monoclonal

CD2 is a surface antigen of the human T-lymphocyte lineage that is expressed on all peripheral blood T cells (summarized by Sewell et al., 1986 [PubMed 3490670]). It is one of the earliest T-cell markers, being present on more than 95% of thymocytes; it is also found on some natural killer cells but not on B lymphocytes. Monoclonal antibodies directed against CD2 inhibit the formation of rosettes with sheep erythrocytes, indicating that CD2 is the erythrocyte receptor or is closely associated with it.[supplied by OMIM, Jul 2010]

CD2: CD2 interacts with lymphocyte function-associated antigen (LFA-3) and CD48/BCM1 to mediate adhesion between T-cells and other cell types. CD2 is implicated in the triggering of T- cells, the cytoplasmic domain is implicated in the signaling function.

Protein type: Cell surface; Apoptosis; Membrane protein, integral

Chromosomal Location of Human Ortholog: 1p13.1

Cellular Component: internal side of plasma membrane; cell surface; anchored to plasma membrane; integral to plasma membrane; plasma membrane; extracellular region; intercellular junction; external side of plasma membrane

Molecular Function: protein binding; protein homodimerization activity; receptor activity; receptor binding

Biological Process: heterotypic cell-cell adhesion; cell-cell adhesion; cell surface receptor linked signal transduction; T cell activation; apoptosis; natural killer cell activation; regulation of T cell differentiation; blood coagulation; lipid raft polarization; positive regulation of tumor necrosis factor production; leukocyte migration; positive regulation of myeloid dendritic cell activation