Anti-SRP19 antibodies are used in the immunodetection of the protein signal recognition particle 19. In humans, the canonical protein has a reported length of 144 amino acid residues and a mass of 16.2 kDa. Its subcellular localization is in the nucleus and cytoplasm. Up to 3 different isoforms have been reported for this protein. It is notably widely expressed in many tissue types. A member of the SRP19 protein family, SRP19 is a known component of the signal recognition particle (SRP) complex, a ribonucleoprotein complex that mediates the cotranslational targeting of secretory and membrane proteins to the endoplasmic reticulum (ER) (By similarity). Synonyms for this target antigen include signal recognition particle 19kD, signal recognition particle 19kDa, and signal recognition particle 19 kDa protein. SRP19 gene orthologs have been reported in the mouse, bovine, frog, zebrafish, chimpanzee and chicken species. Some SRP19 antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA, Immunofluorescence, and Immunohistochemistry are also common applications.