Anti-CHP3 antibodies enable researchers to detect and measure the CHP3 antigen in biological samples. This target is a reported synonym of the TESC gene, which encodes tescalcin. This protein is known to function in cell differentiation and the regulation of cell proliferation, among other biological roles. The human version of CHP3 has a canonical amino acid length of 214 residues and a protein mass of 24.8 kilodaltons, although 3 isoforms have been identified. It is reported to be localized in the cell membrane, nucleus, and cytoplasm of cells and widely expressed in many tissue types. CHP3 is a member of the Calcineurin regulatory subunit protein family.