Anti-NPI1 antibodies enable researchers to detect and measure the NPI1 antigen in biological samples. This target is a reported synonym of the KPNA1 gene, which encodes karyopherin subunit alpha 1. This protein is known to function in the regulation of apoptosis, among other biological roles. The human version of NPI1 has a canonical amino acid length of 538 residues and a protein mass of 60.2 kilodaltons. It is reported to be localized in the nucleus and cytoplasm of cells and widely expressed in many tissue types. Other names for this target antigen include IPOA5 and RCH2. Western Blot is the most common application for the NPI1 antibodies listed below. ELISA, Immunofluorescence, and Immunohistochemistry are also common applications.