SV40 NUCLEAR TRANSPORT SIGNAL PEPTIDE ANALOG;C-G-Y-G-P-K-K-K-R-K-V-G-G;CYS-GLY-TYR-GLY-PRO-LYS-LYS-LYS-ARG-LYS-VAL-GLY-GLY;H-CYS-GLY-TYR-GLY-PRO-LYS-LYS-LYS-ARG-LYS-VAL-GLY-GLY-OH;cys-gly-tyr-gly-pro-lys-lys-lys-arg-*lys-val-gly-;CYS-GLY-TYR-GLY-PRO-LYS-LYS-LYS-ARG-LYS- VAL-GLY-GL