Immunogen sequence: QNLNDVLVGL EKQHGSNTFT VKAQPSDNAP AKGNKSPSPP DGSPAATPEI RVNHEPEPAG GATPGATLPK SPSQSSLPAV VVETFPATVN GTVEGGSGAG RLDLPPGFMF KVQAQHDYTA TDTDELQLKA GDVVLVIPFQ NPEEQDEGWL MGVKESDWNQ HKELEKCRGV FPENFTERVP; Positive Samples: SW620; Cellular L