Anti-Sin antibodies are used in antigen-specific immunodetection in biological samples. The target Sin is a known alias name of the protein embryonal Fyn-associated substrate, encoded by the EFS gene in humans. This 561-amino acid residue protein is reported to be a docking protein, which plays a central coordinating role for tyrosine-kinase-based signaling related to cell adhesion. It is reported to be expressed in many tissues, such as the caudate, skin, and breast. Indicated applications for Sin antibodies listed below include ELISA, Western Blot, Immunofluorescence, and Immunohistochemistry.