Anti-SORBS1 antibodies are used in the immunodetection of the protein sorbin and SH3 domain containing 1. In humans, the canonical protein has a reported length of 1292 amino acid residues and a mass of 142.5 kDa. Its subcellular localization is in the cell membrane, nucleus, and cytoplasm. Alternative splicing is reported to yield 12 different isoforms for this protein. It is notably expressed in skeletal muscle. SORBS1 is reported to play a role in in tyrosine phosphorylation of CBL by linking CBL to the insulin receptor. Post-translational modifications have been described, including O-glycosylation. Synonyms for this target antigen include FLAF2, R85FL, SH3D5, SH3P12, SORB1, and CAP.