| BK | bradykinin |
| B1R | kinin receptor B1 |
| B2R | kinin receptor B2 |
| CPM | carboxypeptidase M |
| HK | high-molecular-mass kininogen |
| HK-Bt | biotinylated high-molecular-mass kininogen |
| HPG | plasminogen |
| HPG-Bt | biotinylated plasminogen |
| HPLC | high performance liquid chromatography |
| HRgpA | gingipain R |
| Kgp | gingipain K |
| LC-MS/MS | liquid chromatography coupled-tandem mass spectrometry |
| PPAD | peptidylarginine deiminase |
| SA-HRP/TMB | streptavidin conjugated to horseradish peroxidase/ 3,3′,5,5′-tetramethylbenzidine |
| SAPs | secreted aspartyl proteases |