Table 1. Comparative physical properties of two natural cationic peptides.
| Peptide | Arginines | Lysines | Total residues | Sequence | Total positive charges |
| TAT(48–60) | 6 | 2 | 9 | GRKKRRQRRRPPQ | +8 |
| ApoEdp | 6 | 4 | 18 | LRKLRKRLLLRKLRKRLL | +10 |
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