Immunogen sequence: QFRPNPTLLG NLRQNQVLCP LPYISIFKTR NSSSPNLVYG ESGWMSFEDH CAPRGAISRI CQDPRKILAL VLFQQSP. This gene encodes a basic, proline-rich, 15-kD protein. The protein acts as a positive mediator of programmed cell death that is induced by interfer