Immunogen sequence: FILLRVRRRR KSPGGAGGGA SGDGGFYDPK AQVLGNGDPV FWTPVVPGPM EPDGKDEEEE EEEEKAEKGL MLPPPPALED DMESQLDGSL ISRRAVYV; Positive Samples: MCF-7, SW620, A-549, SKOV3; Cellular Location: Cell membrane, Single-pass type I membrane protein. This gen