Anti-psmd-9 antibodies enable researchers to detect and measure the psmd-9 antigen in biological samples. This target is a reported synonym of the PSMD9 gene, which encodes proteasome 26S subunit, non-ATPase 9. This protein is known to function in the regulation of transcription, among other biological roles. The human version of psmd-9 has a canonical amino acid length of 223 residues and a protein mass of 24.7 kilodaltons, although 3 isoforms have been identified. It is reported to be widely expressed in many tissue types. psmd-9 is a member of the Proteasome subunit p27 protein family.