Anti-Regucalcin antibodies are used for the immunodetection of the protein encoded by the RGN gene. In humans, the canonical protein has a reported length of 299 amino acid residues and a mass of 33.3 kDa. Its subcellular localization is in the cytoplasm. Alternative splicing is reported to yield 2 different isoforms for this protein. A member of the SMP-30/CGR1 protein family, it is known to be involved with pathways of aging and the regulation of intracellular calcium. Other names for this target antigen include HEL-S-41, RC, SMP30, epididymis secretory protein Li 41, gluconolactonase, senescence marker protein 30, and GNL. Gene orthologs have been identified in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of Regucalcin antibodies have been mentioned in research publications and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.