Immunogen sequence: AQIIEREGWK TNMDFVGHRK AVTVVKFNPK IFKKKQKNGS SAKPSCPYCC CAVGSKDRSL SVWLTCLKRP LVVIHELFDK SIMDISWTLN GLGILVCSMD GSVAFLDFSQ DELGDPLSEE EKSRIHQSTY GKSLAIMTEA QLSTAVIENP EMLKYQRRQQ QQQLDQKSAA TREMGSATSV AGVVNGESLE DIRKNLLKKQ VETRTADGRR RIT