Anti-MRPS21 antibodies are used in the immunodetection of the protein mitochondrial ribosomal protein S21. In humans, the canonical protein has a reported length of 87 amino acid residues and a mass of 10.7 kDa. Its subcellular localization is in the mitochondria. A member of the Bacterial ribosomal protein bS21 protein family, MRPS21 is known to be involved with mitochondrial translation and protein translation. Synonyms for this target antigen include RPMS21, 28S ribosomal protein S21, mitochondrial, S21mt, mitochondrial 28S ribosomal protein S21, mitochondrial small ribosomal subunit protein bS21m, and MDS016. MRPS21 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. ELISA, Western Blot, Immunocytochemistry, Immunofluorescence, and Immunohistochemistry are common applications for Mrps21 antibodies.