| No. | DFBP ID | AA sequence | Peptide/Function name | Organism/Source | Precursor protein | PubDate |
| 1 | DFBPPEPI0001 | IHPFAQTQ | PEP-inhibitory peptide | Bovine milk | β-Casein | 1992 |
| 2 | DFBPPEPI0044 | IHPFAQTQ | PEP-inhibitory peptide | Ovine milk | β-Casein | 1992 |
| 3 | DFBPPEPI0045 | IHPFAQTQ | PEP-inhibitory peptide | Buffalo milk | β-Casein | 1992 |