The target is usually found in the following locations: Membrane, Single-pass type II membrane protein. Immunogen sequence: VPRWRQQWSG PGTTKRFPET VLARCVKYTE IHPEMRHVDC QSVWDAFKGA FISKHPCNIT EEDYQPLMKL GTQTVPCNKI LLWSRIKDLA HQFTQVQRDM FTLEDTLLGY LADDLTWCG