Anti-NPL3 antibodies enable researchers to detect and measure the NPL3 antigen in biological samples. This target is a reported synonym of the TAF15 gene, which encodes TATA-box binding protein associated factor 15. This protein is known to function in the regulation of transcription and RNA splicing, among other biological roles. The human version of NPL3 has a canonical amino acid length of 592 residues and a protein mass of 61.8 kilodaltons, although 2 isoforms have been identified. It is reported to be localized in the nucleus and cytoplasm of cells and widely expressed in many tissue types. NPL3 is a member of the RRM TET protein family.