Anti-STAP1 antibodies are used in the immunodetection of the protein signal transducing adaptor family member 1. In humans, the canonical protein has a reported length of 295 amino acid residues and a mass of 34.3 kDa. Its subcellular localization is in the nucleus, mitochondria, and cytoplasm. It is notably expressed in many tissues, such as the appendix and colon. STAP1 is known to be involved with the cellular response to lipopolysaccharides and cytoskeleton organization. Post-translational modifications have been described, including phosphorylation. Synonyms for this target antigen include signal-transducing adaptor protein 1, BCR downstream-signaling protein 1, docking protein BRDG1, stem cell adaptor protein 1, and BRDG1. STAP1 gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. Western Blot is the most common application for the STAP1 antibodies listed below. ELISA and Immunohistochemistry are also common applications.