Immunogen: A synthetic peptide corresponding to amino acids 259-274 (KAPLTPTGNRRGRPRK) of human TCF19/SC1 was used as immunogen, GenBank no Q9Y242. Percent identity by BLAST analysis: Human, Chimpanzee, Gorilla, Gibbon, Monkey (100%); Rabbit, Horse (88%); Marmoset, Bovine, Pig (81%).