Immunogen sequence: NLSQDDSQPW TSDETVVAGG TVVLKCQVKD HEDSSLQWSN PAQQTLYFGE KRALRDNRIQ LVTSTPHELS ISISNVALAD EGEYTCSIFT MPVRTAKSLV TVLGIPQKPI ITGYKSSLRE KDTATLNCQS SGSKPAARLT WRKGDQELHG EPTRIQEDPN GKTFTVSSSV TFQVTREDDG ASIVCSVNHE SLKGADRSTS QRIEVLYTPT AMI