Immunogen sequence: YFALQPDDVY YCGIKYIKDD VILNEPSADA PAALYQTIEE NIKIFEEEEV EFISVPVPEF ADSDPANIVH DFNKKLTAYL DLNLDKCYVI PLNTSIVMPP RNLLELLINI KAGTYLPQSY LIHEHMVITD RIENIDHLGF FIYRLCH. Amyloid precursor proteins are processed by beta-secretase and gamma-se