Immunogen sequence: MARTKQTARK STGGKAPRKQ LATKAARKSA PSTGGVKKPH RYRPGTVALR EIRRYQKSTE LLIRKLPFQR LVREIAQDFK TDLRFQSAAI GALQEASEAY LVGLFEDTNL CAIHAKRVTI MPKDIQLARR IRGERA; Positive Samples: U-87MG, HT-29, H460, HeLa, Mouse stomach, Mouse thymus, Rat stoma