Immunogen sequence: ISYCHFSPNS KMLATACWSG LCKLWSVPDC NLLHTLRGHN TNVGAIVFHP KSTVSLDPKD VNLASCAADG SVKLWSLDSD EPVADIE Highest antigen sequence identity to the following orthologs: Mouse - 98%, Rat - 98%. The removal of introns from nuclear pre-mRNAs occurs