Listed are ELISA Kits for the detection of U3-55K, an alias name of ribosomal RNA processing 9, U3 small nucleolar RNA binding protein. The human protein, encoded by the gene RRP9, is 475 amino acid residues long and has a mass of 51,841 daltons. It is a member of the WD repeat RRP9 family. This protein is reported to have a nuclear cellular localization. This target may also be known as: RNA U3 small nucleolar interacting protein 2, RRP9 homolog, RRP9 small subunit (SSU) processome component homolog, U3 snoRNP-associated 55-kDa protein, and ribosomal RNA processing 9 small subunit (SSU) processome component homolog.