Immunogen sequence: QNRPDSRLGK TELSFSSSCE IPHVDGLHSS EELRNLGWDF SQEKPSTTYQ QPDSSYGACG GHKYQQNAEQ YGGTRDYWQG NGYWDPRSGR PPGTGVVYDR TQGQVPDSLT DDREEEENWD QQDGSHFSDQ SDKFLLSLQK DKGSVQAPEI SSNSIKDTLA VNEKKDFSKN LEKNDIKDRG PLKKRRQEIE SDSESDGELQ DRKKVRVE Posit