Anti-SAR1B antibodies are used in the immunodetection of the protein secretion associated Ras related GTPase 1B. In humans, the canonical protein has a reported length of 198 amino acid residues and a mass of 22.4 kDa. Its subcellular localization is in the ER and Golgi. It is reported to be expressed in many tissues including small intestine, liver, muscle and brain. A member of the SAR1 protein family, SAR1B is known to be a GTP-binding protein involved in transport from the endoplasmic reticulum to the Golgi apparatus (By similarity). The SAR1B gene has been associated with the disease, Chylomicron retention disease. Synonyms for this target antigen include CMRD, GTBPB, SARA2, GTP-binding protein SAR1b, 2310075M17Rik, and ANDD. SAR1B gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. A number of SAR1B 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.