Osytocin-vasopressin analogues Peptides table
| Peptides | Oxytocic activity | Pressor activity |
|---|---|---|
| Oxytocin | 5.65 | 3.7 |
| Phe2 | 4.5 | 2.6 |
| Phe3 | 4.3 | 3.48 |
| Tyr3 | 2 | 3 |
| Phe2Phe3 | 3.52 | 2.95 |
| Phe2Tyr3 | < 1.00 | < 1.00 |
| Ser2 | < 1.00 | < 1.00 |
| Ser2His3 | < 1.00 | |
| His2Phe3 | < 1.00 | < 1.00 |
| Try3 | 1.6 | |
| Leu3 | 4.65 | 2.48 |
| Val3 | 4.77 | 2.3 |
| Glu(NH2)5 | < 1.30 | |
| lIeu8 | 5.46 | 3.8 |
| Val8 | 5.3 | 3.95 |
| Phe3Lys8 (vasopressin) | 3.7 | 5.43 |
| Tyr3Lys8 | 1 | 3.2 |
| Phe3Phe3Lys8 | 2.48 | 4.74 |
| Phe3Tyr3Lys8 | < 1.00 | 2.15 |
| Lys8 (vasoctocine) | 4.89 | 5.11 |
| Ser2Lys8 | < 1.00 | 2 |
| Ser2His3Lys8 | < 1.00 | <1.30 |
| His2Ser3Lys8 | < 1.00 | |
| His2Phe3Lys8 | < 1.00 | < 1.00 |
| Ser3Lys8 | < 1.00 | < 1.00 |
| Try3Lys8 | < 1.00 | 1.85 |
| Phe2Lys8 | 3 | 4.51 |
| Phe2Arg8 | 4.3 | 5.6 |
| Arg8 | 4.88 | 5.1 |
| Phe3His8 | 3.18 | 3.18 |
| Ser4Ileu8 | 5.19 | 1.78 |