| CP | Carboxypeptidase |
| CPA | Carboxypeptidase A |
| CPA1 | Carboxypeptidase A1 |
| CPD | Carboxypeptidase D |
| CPE | Carboxypeptidase E |
| CPM | Carboxypeptidase M |
| CPN | Carboxypeptidase N |
| CPZ | Carboxypeptidase Z |
| ECM | Extracellular matrix |
| EGF | Epidermal Growth Factor |
| Fz | Frizzled-like |
| LC-MS | Liquid chromatography-mass spectrometry |
| MALDI-TOF MS | Matrix-assisted laser desorption ionization time-of-flight mass spectrometry |
| MCPs | Metallocarboxypeptidases |
| PDB | Protein data bank |
| sFRP | secreted Frizzled-like related protein |
| TMAB | 4-trimethyl-ammoniumbutyrate |
| TTL | Transthyretin-like domain |
| WG | Wingless |