Immunogen sequence: MGSLPSRRKS LPSPSLSSSV QGQGPVTMEA ERSKATAVAL GSFPAGGPAE LSLRLGEPLT IVSEDGDWWT VLSEVSGREY NIPSVHVAKV SHGWLYEGLS REKAEELLLL PGNPGGAFLI RESQTRRGSY SLSVRLSRPA SWDRIRHYRI HCLDNGWLYI; Positive Samples: K-562, A-431, HT-29; Cellular Location: