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Relative activity of purified (615.1-fold) X-PDP on various peptides
| Peptide | Relative activitya |
|---|---|
| Gly-Pro | 0.0 |
| Tyr-Pro-Phe (β-casomorphin fragment 1–3) | 100.0 |
| Gly-Pro-Ala | 11.7 |
| Ile-Pro-Ile (diprotin A) | 2.0 |
| Ala-Ala-Ala | 1.1 |
| Gly-Pro-Gly-Gly | 5.0 |
| Gly-Pro-Arg-Pro | 4.1 |
| Ala-Ala-Ala-Ala | 2.2 |
| Arg-Pro-Pro-Gly-Phe (bradykinin fragment 1–5) | 0.0 |
Expressed as a percentage of the rate of hydrolysis of Tyr-Pro-Phe, which was given a value of 100%.
