Anti-NPIPB3 antibodies are used in the immunodetection of the protein nuclear pore complex interacting protein family member B3. In humans, the canonical protein has a reported length of 1050 amino acid residues and a mass of 116.8 kDa. Its subcellular localization is in the membrane. Up to 6 different isoforms have been reported for this protein. It is notably widely expressed in many tissue types. It is a member of the NPIP protein family. Synonyms for this target antigen include NPIP, NPIPB5, NPIPL3, LOW QUALITY PROTEIN: nuclear pore complex-interacting protein family member B3, and KIAA0220L.