Anti-PITPNB antibodies are used in the immunodetection of the protein phosphatidylinositol transfer protein beta. In humans, the canonical protein has a reported length of 271 amino acid residues and a mass of 31.5 kDa. Its subcellular localization is in the ER and Golgi. Up to 3 different isoforms have been reported for this protein. It is found to be widely expressed in various tissues including brain. A member of the PtdIns transfer protein family, PITPNB is known to catalyze the transfer of phosphatidylinositol and phosphatidylcholine between membranes. Post-translational modifications have been described, including phosphorylation. Synonyms for this target antigen include PtdInsTP, VIB1B, phosphatidylinositol transfer protein beta isoform, PtdIns transfer protein beta, phosphotidylinositol transfer protein, beta, and PI-TP-beta. PITPNB gene orthologs have been reported in the mouse, rat, bovine, frog, zebrafish, chimpanzee and chicken species. Some PITPNB antibodies may have been used in research and have associated citations. Western Blot is a widely used application for these antibodies. ELISA and Immunohistochemistry are also common applications.