Anti-LSM3 antibodies are used in the immunodetection of the protein LSM3 homolog, U6 small nuclear RNA and mRNA degradation associated. In humans, the canonical protein has a reported length of 102 amino acid residues and a mass of 11.8 kDa. Its subcellular localization is in the nucleus. It is notably expressed in many tissues, such as the duodenum, urinary bladder, and cerebellum. A member of the SnRNP Sm proteins protein family, LSM3 is known to play a role in pre-mRNA splicing as component of the U4/U6-U5 tri-snRNP complex that is involved in spliceosome assembly, and as component of the precatalytic spliceosome (spliceosome B complex). Synonyms for this target antigen include USS2, YLR438C, U6 snRNA-associated Sm-like protein LSm3, LSM3 U6 small nuclear RNA and mRNA degradation associated, LSM3 homolog, U6 small nuclear RNA associated, and SMX4. LSM3 gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some LSM3 antibodies may have been used in research and have associated citations. ELISA is a widely used application for these antibodies. Western Blot and Immunofluorescence are also common applications.