There are a number of ELISA Kits available for the measurement of squamous cell carcinoma antigen recognized by T cells, another term for the human protein, spliceosome associated factor 1, recruiter of U4/U6.U5 tri-snRNP. Other synonyms may include: 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. It is encoded by the SART1 gene to yield a protein 800 amino acids in length and 90.3 kDa in size. The protein is categorized into the SNU66/SART1 family. Versions of squamous cell carcinoma antigen recognized by T cells are present in other organisms, including: Mouse, Rat.