Anti-SMIM21 antibodies are used in the immunodetection of the protein small integral membrane protein 21. In humans, the canonical protein has a reported length of 101 amino acid residues and a mass of 11.7 kDa. Its subcellular localization is in the membrane. It is notably expressed in the testis. Some SMIM21 antibodies may have been used in research and have associated citations. Indicated applications for the antibodies listed below include ELISA, Western Blot, Immunoprecipitation, and Immunohistochemistry.