5(KER)-TASP AIDS-111797 AIDS111797 Lys[-(Arg-Glu-Lys-NH2)2]-Lys-Lys[-Arg-Glu-Lys-NH2]-Gly-Pro-Lys[-Arg-Glu-Lys-NH2]-Glu-Lys[-Arg-Glu-Lys-NH2]-Gly-Cys-OH Pseudopeptides