Anti-SH2D1A antibodies are used in the immunodetection of the protein SH2 domain containing 1A. In humans, the canonical protein has a reported length of 128 amino acid residues and a mass of 14.2 kDa. Its subcellular localization is in the cytoplasm. Alternative splicing is reported to yield 6 different isoforms for this protein. It is noted to be expressed at a high level in thymus and lung, with a lower level of expression in spleen and liver. Among its functions, SH2D1A is involved with adaptive immune responses and cell to cell signaling. Synonyms for this target antigen include EBVS, IMD5, LYP, MTCP1, SAP, SAP/SH2D1A, XLP, and DSHP.