Anti-Statherin antibodies are used in the immunodetection of the protein encoded by the STATH gene. In humans, the canonical protein has a reported length of 62 amino acid residues and a mass of 7.3 kDa. It is known to be a secreted protein. Alternative splicing is reported to yield 2 different isoforms for this protein. A member of the Histatin/statherin protein family, it is reported to be a salivary protein that stabilizes saliva supersaturated with calcium salts by inhibiting the precipitation of calcium phosphate salts. Post-translational modifications have been described, including sulfation. Other names for this target antigen include STR.