Anti-Dysferlin antibodies are used in the immunodetection of the protein encoded by the DYSF gene. In humans, the canonical protein has a reported length of 2080 amino acid residues and a mass of 237.3 kDa. Its subcellular localization is in the cytoplasmic vesicles and cell membrane. Alternative splicing is reported to yield 15 different isoforms for this protein. It is reported to be expressed in skeletal muscle, myoblast, myotube and in the syncytiotrophoblast (STB) of the placenta. The dysferlin protein is a member of the Ferlin protein family. Other names for this target antigen include LGMD2B, LGMDR2, MMD1, dystrophy-associated fer-1-like 1, fer-1-like family member 1, and FER1L1.