Listed are ELISA Kits for the detection of U5-110K, an alias name of spliceosome associated factor 1, recruiter of U4/U6.U5 tri-snRNP. The human protein, encoded by the gene SART1, is 800 amino acid residues long and has a mass of 90,255 daltons. It is a member of the SNU66/SART1 family. This protein is reported to have a nuclear cellular localization. This target may also be known as: U4/U6.U5 tri-snRNP-associated protein 1, IgE autoantigen, SART-1, SART1(259) protein, SART1 U4/U6.U5 tri-snRNP-associated protein 1, SNU66 homolog, and U4/U6.U5 tri-snRNP-associated 110 kDa protein.