Anti-small glutamine rich tetratricopeptide repeat co-chaperone alpha antibodies are used for the immunodetection of the protein encoded by the SGTA gene. In humans, the canonical protein has a reported length of 313 amino acid residues and a mass of 34.1 kDa. Its subcellular localization is in the nucleus and cytoplasm. It is ubiquitously expressed across many tissue types. A member of the SGT protein family, it is a reported co-chaperone that binds misfolded and hydrophobic patches-containing client proteins in the cytosol. Other names for this target antigen include SGT1, alphaSGT, hSGT, small glutamine-rich tetratricopeptide repeat-containing protein alpha, and SGT. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species.