Immunogen sequence: MEEDKLLSAV PEEGDATRDP GPEPEEEPGV RNGMASEGLN SSLCSPGHER RGTPADTEEP TKDPDVAFHG LSLGLSLTNG LALGPDLNIL EDSAESRPWR AGVLAEGDNA SRSLYPDAED PQLGLDGPGE PDVRDGFSAT FEKILESELL RGTQYSSLDS LDGLSLTDES DSCVSFEAPL TPLIQQRARD; Positive Samples: U-87MG