Anti-HSPA2 antibodies are used in the immunodetection of the protein heat shock protein family A (Hsp70) member 2. In humans, the canonical protein has a reported length of 639 amino acid residues and a mass of 70 kDa. Its subcellular localization is in the cytoplasm. It is notably expressed in the kidney and testis. A member of the Heat shock protein 70 protein family, HSPA2 is known to be a molecular chaperone implicated in a wide variety of cellular processes, including protection of the proteome from stress, folding and transport of newly synthesized polypeptides, activation of proteolysis of misfolded proteins and the formation and dissociation of protein complexes. Synonyms for this target antigen include HSP70-3, heat shock-related 70 kDa protein 2, epididymis secretory sperm binding protein, heat shock 70kD protein 2, heat shock 70kDa protein 2, and HSP70-2. Over 380 citations in the literature describe the use of HSPA2 antibodies in research. Western Blot is a widely used application for these antibodies. Immunocytochemistry and Immunohistochemistry are also common applications.