Anti-LSP1 antibodies are used in the immunodetection of the protein lymphocyte specific protein 1. In humans, the canonical protein has a reported length of 339 amino acid residues and a mass of 37.2 kDa. Its subcellular localization is in the cell membrane. Up to 3 different isoforms have been reported for this protein. It is notably expressed in many tissues, such as the appendix and lung. LSP1 is believed to play a role in mediating neutrophil activation and chemotaxis. Post-translational modifications have been described, including phosphorylation. Synonyms for this target antigen include pp52, 47 kDa actin binding protein, 52 kDa phosphoprotein, F-actin binding and cytoskeleton associated protein, and WP34. LSP1 gene orthologs have been reported in the mouse, rat, bovine, frog, chimpanzee and chicken species. A number of LSP1 antibodies have been mentioned in research publications and have associated citations. ELISA, Western Blot, Immunofluorescence, and Immunohistochemistry are common applications for these antibodies.