Positive Samples: PC-3, Mouse spleen, Mouse stomach, Rat stomach Immunogen sequence: AIRREIVALK TKLKECEASK DQNTPVVHPP PTPGSCGHGG VVNISKPSVV QLNWRGFSYL YGAWGRDYSP QHPNKGLYWV APLNTDGRLL EYYRLYNTLD DLLLYINARE LRITYGQGSG TAVYNNNMYV NMYNTGNIAR VNLTTNTIAV TQTL