Immunogen sequence: PDLGILFELG ISYIRNSTGE RGELSCGWVF LKLFDASGVP IPAKTYELFL NGGTPYEKGI EVDPSISRRA HGSVFYQIMT MRRQPQLLVK LRSLNRRSRN VLSLLPETLI GNMCSIHLLI FYRQILGDVL LKDRMSLQST DLISHPMLAT FPMLLEQPDV MDALRSSWAG KESTLKRSEK RDKEFLKSTF LLVYHDCVLP LLHSTRLPPF RWA