| CPs | Cysteine peptidases: also known as cysteine proteases, these are proteolytic enzymes that contain a cysteine residue in their catalytic triad. |
| CATL | Cathepsin L: the name cathepsin originates from the Greek word kathepsein, which means to digest. Cathepsins L and B belong to the Clan CA, C1 family of papain-like cysteine peptidases. |
| CATB | Cathepsin B: it has dual endo- and exopeptidase activity and plays an essential role in endocytic nutrient processing and parasite survival. |
| IAA | Iodoacetic acid: an irreversible alkylating inhibitor that binds covalently to the active-site cysteine residue of peptidases. |
| K11777 (SLV13) | N-methyl-piperazine-phenyl-alanyl-homo-phenylalanyl-vinyl sulfone-phenyl: a potent, broad-range irreversible cysteine protease inhibitor. |
| PMSF | Phenylmethyl sulfonyl fluoride: an irreversible inhibitor of serine proteases and some cysteine peptidases. |
| NTDs | Neglected Tropical Diseases: include a diverse group of conditions caused by various pathogens, including viruses, bacteria, parasites, fungi and toxins that are associated with devastating health, social and economic consequences. |
| HAT | Human African Trypanosomiasis: an NTD caused by Trypanosoma brucei gambiense and Trypanosoma brucei rhodesiense and transmitted through infected tsetse flies in sub-Saharan Africa. |