5(PKR)-TASP AIDS-111799 AIDS111799 Lys[-(Arg-Lys-Pro-NH2)2]-Lys-Lys[-Arg-Lys-Pro-NH2]-Gly-Pro-Lys[-Arg-Lys-Pro-NH2]-Glu-Lys[-Arg-Lys-Pro-NH2]-Gly-Cys-OH Pseudopeptides