cathepsin l in 2

Calpain Inhibitor XII (Z-L-Nva-CONH-CH2-2-Py) is a selective and potent inhibitor of calpain I, inhibits calpain II and cathepsin B. Calpain Inhibitor XII shows antiviral activity against coronavirus in cell culture.

CathepsinL-IN-5 (D6-3) is a potent inhibitor of Cathepsin L (CatL) with an IC50 value of 0.27 nM. It effectively blocks the function of CatL and significantly impedes the entry of SARS-CoV-2 pseudovirus into cells by inhibiting the cleavage of the spike protein. CathepsinL-IN-5 is applicable for research on infections.

SARS-CoV-2 Mpro-IN-31 (Compound 18) is an inhibitor of SARS-CoV-2 MPro with an IC50 of 11 nM. Additionally, this compound effectively inhibits the enzymatic activity of the cysteine proteases cathepsin B and cathepsin L, with IC50 values of 24 nM and 1.8 nM, respectively.

DualCathepsinL JAK-IN-1 (Compound A8) serves as a dual inhibitor of Cathepsin L (CTSL) and JAK, exhibiting IC50 values of 0.68 μM for CTSL and 337.1 nM, 5.251 nM, 27.29 nM, and 172.6 nM for JAK1 2 3 and TYK2, respectively. This compound effectively prevents the activation of MAPK, NF-κB, and JAK STAT signaling pathways, leading to significant anti-inflammatory therapeutic effects. DualCathepsinL JAK-IN-1 is applicable in research on acute lung injury (ALI).

(Rac)-Z-Phe-Phe-FMK (Cathepsin L-IN-2) is a cathepsin L inhibitor that inhibits the tendency of β-amyloid to induce apoptotic changes .

SARS-CoV-2 Mpro-IN-4 is a dual inhibitor targeting Main Protease (M Pro) and Cathepsin L (CatL), with inhibition concentrations (IC50) of 900 nM and 60 nM, respectively. It effectively blocks SARS-CoV-2 replication in hACE2-expressing A549 cells, demonstrating antiviral activity with an IC50 value of 8.2 nM.

SARS-CoV-2 Mpro-IN-5 is a dual inhibitor targeting Main Protease (M Pro) and Cathepsin L (CatL) with IC50 values of 1800 nM and 145 nM, respectively. This compound demonstrates antiviral activity by inhibiting SARS-CoV-2 replication in hACE2 expressing A549 cells, with an IC50 value of 14.7 nM.

Acetyl-Calpastatin(184-210)(human) TFA, a potent, selective, and reversible calpain inhibitor, has Ki values of 0.2 nM for µ-calpain and 6 μM for cathepsin L, indicating high specificity and efficacy in enzyme inhibition [1] [2].

Ac-VLPE-FMK, a tetrapeptidyl mono-fluoromethyl ketone (m-FMK), inhibits Cathepsin B (Cat-B) and Cathepsin L (Cat-L) and is used in cancer aggressiveness research [1] [2].