Immunogen sequence: VKPYQVNGVN PAYPESRYTS DYFISYGIEH AQCVPPSEFS EPSFITESYQ TLHPISSEEL LSLKYENDYP SVILRDPLQT DTLQNDYFAI KQEVVTPDNM CMGRTS. ETS1 (c-Ets-1; v-ets erythroblastosis virus E26 oncogene homlog 1 (avian); ETS-1; EWSR2; p54), a 441 A. A protein, i