Immunogen sequence: MPKAKGKTRR QKFGYSVNRK RLNRNARRKA APRIECSHIR HAWDHAKSVR QNLAEMGLAV DPNRAVPLRK RKVKAMEVDI EERPKELVRK PYVLNDLEAE ASLPEKKGNT LSRDLIDYVR YMVENHGEDY KAMARDEKNY YQDTPKQIRS KINVYKRFYP AEWQDFLDSL QKRKMEVE; Positive Samples: HT-29, A-549, A-431