Cysteine Protease

Inhibitory Selectivity

Isoform-specific Inhibitors

Cysteine Protease Products

Catalog No. Information Product Use Citations Product Validations
S7379

E-64

E-64 is an irreversible and selective cysteine protease inhibitor, and also inhibits papain, calpain, and cathepsins B and H, but not serine proteases or aspartic proteases. The IC50 for papain is 9 nM. E-64 induces oxidative stress and apoptosis in Filarial Parasite.

S0722

Cruzain-IN-1

Cruzain-IN-1 is a selective inhibitor of trypanosomal cysteine proteases and a covalent and reversible Cruzain inhibitor with IC50 of 10 nM.

S7420

CA-074 methyl ester (CA-074 Me)

CA-074 methyl ester (CA-074 Me, Cathepsin B Inhibitor IV) is a membrane-permeable derivative of CA-074 and acts as an irreversible cathepsin B inhibitor.

S2847

Cathepsin Inhibitor 1

Cathepsin Inhibitor 1 is an inhibitor of Cathepsin (L, L2, S, K, B) with pIC50 of 7.9, 6.7, 6.0, 5.5 and 5.2, respectively.

S7394

MDL-28170

MDL-28170 (Calpain Inhibitor III) is a potent and selective calpain inhibitor of calpain that penetrates the blood-brain barrier and inhibits brain cysteine protease activity after systemic administration. MDL-28170 is also an inhibitor of γ-secretase.

S7386

MG-101 (ALLN)

MG-101 (ALLN, Calpain inhibitor-1, Ac-LLnL-CHO) is a cell-permeable and potent inhibitor of cysteine proteases including calpains and lysosomal cathepsins.

S7391

Z-FA-FMK

Z-FA-FMK ((1S)-Z-FA-FMK) is an irreversible cysteine protease inhibitor, and also inhibits effector caspases.

S7380

Leupeptin Hemisulfate

Leupeptin Hemisulfate is a reversible inhibitor of serine and cysteine proteases. It inhibits cathepsin B (Ki = 6 nM), calpain (Ki = 10 nM), trypsin (Ki = 35 nM), plasmin (Ki = 3.4 μM), and kallikrein (Ki = 19 μM), and has no effect against chymotrypsin, elastase, renin, or pepsin.

S0194

Balicatib

Balicatib (AAE-581) is a potent and selective inhibitor of the osteoclastic enzyme cathepsin K.

S7424

PD 151746

PD 151746 is a selective, cell-permeable calpain inhibitor with Ki of 0.26 μM for μ-Calpain, about 20-fold selectivity over m-calpain.

S7381

Pepstatin A

Pepstatin A (Pepstatin) is a potent aspartic protease inhibitor, and also inhibits HIV replication. Pepstatin A is also an inhibitor of cathepsins D and cathepsins E. Pepstatin A inhibits autophagy by suppressing lysosomal proteases.

S5611

2-cyano-Pyrimidine

2-cyano-Pyrimidine is a cathepsin K inhibitor with an IC50 of 170 nM.

Catalog No. Information Product Use Citations Product Validations
S7379

E-64

E-64 is an irreversible and selective cysteine protease inhibitor, and also inhibits papain, calpain, and cathepsins B and H, but not serine proteases or aspartic proteases. The IC50 for papain is 9 nM. E-64 induces oxidative stress and apoptosis in Filarial Parasite.

S0722

Cruzain-IN-1

Cruzain-IN-1 is a selective inhibitor of trypanosomal cysteine proteases and a covalent and reversible Cruzain inhibitor with IC50 of 10 nM.

S7420

CA-074 methyl ester (CA-074 Me)

CA-074 methyl ester (CA-074 Me, Cathepsin B Inhibitor IV) is a membrane-permeable derivative of CA-074 and acts as an irreversible cathepsin B inhibitor.

S2847

Cathepsin Inhibitor 1

Cathepsin Inhibitor 1 is an inhibitor of Cathepsin (L, L2, S, K, B) with pIC50 of 7.9, 6.7, 6.0, 5.5 and 5.2, respectively.

S7394

MDL-28170

MDL-28170 (Calpain Inhibitor III) is a potent and selective calpain inhibitor of calpain that penetrates the blood-brain barrier and inhibits brain cysteine protease activity after systemic administration. MDL-28170 is also an inhibitor of γ-secretase.

S7386

MG-101 (ALLN)

MG-101 (ALLN, Calpain inhibitor-1, Ac-LLnL-CHO) is a cell-permeable and potent inhibitor of cysteine proteases including calpains and lysosomal cathepsins.

S7391

Z-FA-FMK

Z-FA-FMK ((1S)-Z-FA-FMK) is an irreversible cysteine protease inhibitor, and also inhibits effector caspases.

S7380

Leupeptin Hemisulfate

Leupeptin Hemisulfate is a reversible inhibitor of serine and cysteine proteases. It inhibits cathepsin B (Ki = 6 nM), calpain (Ki = 10 nM), trypsin (Ki = 35 nM), plasmin (Ki = 3.4 μM), and kallikrein (Ki = 19 μM), and has no effect against chymotrypsin, elastase, renin, or pepsin.

S0194

Balicatib

Balicatib (AAE-581) is a potent and selective inhibitor of the osteoclastic enzyme cathepsin K.

S7424

PD 151746

PD 151746 is a selective, cell-permeable calpain inhibitor with Ki of 0.26 μM for μ-Calpain, about 20-fold selectivity over m-calpain.

S7381

Pepstatin A

Pepstatin A (Pepstatin) is a potent aspartic protease inhibitor, and also inhibits HIV replication. Pepstatin A is also an inhibitor of cathepsins D and cathepsins E. Pepstatin A inhibits autophagy by suppressing lysosomal proteases.

S5611

2-cyano-Pyrimidine

2-cyano-Pyrimidine is a cathepsin K inhibitor with an IC50 of 170 nM.