Positive Samples: HeLa, Jurkat, A-431, U-87MG Immunogen sequence: SKQREKNEAE NLEENEEPFV APLGLSVPSD VELPPTAKMH AIIERTASFV CRQGAQFEIM LKAKQARNSQ FDFLRFDHYL NPYYKFIQKA MKEGRYTVLA ENKSDEKKKS G. Signal-induced proliferation associated-like protein 2 (SIPA1L2)