| Tyr | 97 | 87 | 89 | 98 | 96 | 17 | NS |
| Phe | 57 | 54 | 52 | 59 | 55 | 8 | NS |
| Lys | 157 | 158 | 165 | 178 | 165 | 13 | NS |
| His | 89 | 82 | 83 | 86 | 89 | 8 | NS |
| 3-Mehis | 9 | 7 | 9 | 9 | 9 | 2 | NS |
| Arg | 141 | 121 | 154 | 144 | 133 | 30 | NS |
| Pro | 226 | 245 | 258 | 272 | 245 | 27 | NS |