Immunogen sequence: MGGCAGSRRR FSDSEGEETV PEPRLPLLDH QGAHWKNAVG FWLLGLCNNF SYVVMLSAAH DILSHKRTSG NQSHVDPGPT PIPHNSSSRF DCNSVSTAAV LLADILPTLV IKLLAPLGLH LLPYSPRVLV SGICAAGSFV LVAFSHSVGT SLCGVVFASI SSGLGEVTFL SLTAFYPRAV ISWWSSGTGG AGLLGALSYL GLTQAGLSPQ QTL