| Wild-type | P1107ELR PDV ELG ADE LA1121 |
| Mutant-1 | P1107ALR PDV ELG ADE LA1121 |
| Mutant-2 | P1107ELR PAV ELG ADE LA1121 |
| Mutant-3 | P1107ELR PDV ALG ADE LA1121 |
| Mutant-4 | P1107ELR PDV ELG AAE LA1121 |
| Mutant-5 | P1107ELR PDV ELG ADA LA1121 |
| Mutant-6 | P1107ALR PAV ELG ADE LA1121 |
| Mutant-7 | P1107ALR PAV ALG ADE LA1121 |
| Mutant-8 | P1107ALR PAV ALG AAA LA1121 |