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Arg-Arg-AMC acetate is the acetate salt form of Arg-Arg-AMC (HY-P4340). Arg-Arg-AMC acetate is a fluorescent substrate for cathepsin B and used in the cathepsin B activity assay .
Z-Arg-Arg-βNA acetate is a sensitive dipeptide substrate of the protease Cathepsin B and resistant to proteases H and L. Z-Arg-Arg-βNA acetate can serve as an important tool for distinguishing non-Cathepsin B type proteins .
Cathepsin B, Human Liver is a cysteine protease in liver and is involved in multiple kinds of programmed cell death (including apoptosis, pyroptosis, ferroptosis, necroptosis, and autophagic cell death). Cathepsin B (CTSB) have been implicated in various ECM-related disorders, such as dilated cardiomyopathy, lung fibrosis, proteinuric renal disorders, cancer, and osteoporosis .
Cathepsin B, Bovine spleen is a cysteine protease and is involved in multiple kinds of programmed cell death (including apoptosis, pyroptosis, ferroptosis, necroptosis, and autophagic cell death) .
Arg-Arg-AMC is a highly selective substrate of Cathepsin B. Arg-Arg-AMC can be used to cathepsin B activity assay in cancer cells, while cathepsin B is assocaited with cell invasive and metastatic phenotype in numerous types of cancer .
CA-074 methyl ester is a specific inhibitor of Cathepsin B, which has potent bioactivities such as neuroprotective, anti-cancer, and anti-inflamatory effects.
3-Epiursolic Acid is a triterpenoid that can be isolated from Eriobotrya japonica, acts as a competitive inhibitor of cathepsin L (IC50, 6.5 μM; Ki, 19.5 μM), with no obvious effect on cathepsin B .
Cathepsin D/E Substrate, Fluorogenic, 11 amino acid peptide, is a selective substrate for cathepsins D and E. Cathepsin D/E Substrate, Fluorogenic does not act as a substrate for cathepsins B, H, or L .
VBY-825 is an orally available novel reversible cathepsin inhibitor that has high inhibitory potency against cathepsin B, L, S and V, and possesses anti-tumor, anti-inflammatory and analgesic effects .
(S,R,R)-VBY-825 is the isomer of VBY-825 (HY-15958), and can be used as an experimental control. VBY-825 is a novel reversible inhibitor of cathepsin with high inhibition of cathepsin B, L, S and V.
Ezurpimtrostat (compound 2-2) is a potent and orally active anti-fibrotic agent. Ezurpimtrostat can be used for the research of fibrosis, cancer, autophagy and cathepsins B (CTSB), L (CTSL) and D (CTSD) related diseases (extracted from patent WO2020048694 A1) .
hCAIX-IN-21 (compound 16c) is a potent hCAIX inhibitor with KI values of 5.2, 3.5, 12.6, 13600 nM for hCAIX, hCA II, hCA XII, hCA I, respectively. hCAIX-IN-21 inhibits cathepsin B enzyme activity .
NC 2300 (VEL-0230)is a selective and orally active cysteine cathepsin inhibitor with the IC50 values of 284, 34.5, and 186 nM for cathepsin B, K, and S, respectively.NC 2300 can be used for study of diseases involving bone mineral disorders .
Dibenzyl trisulfide (DTS) is an active ingredient that can be isolated from Petiveria alliacea L.. Dibenzyl trisulfide inhibits cell proliferation and migration. Dibenzyl trisulfide decreased the mRNA and protein expression of BAK-1 and LTA. Dibenzyl trisulfide induces lysosomal membrane permeabilization and cathepsin B release .
MG-101 (ALLN) is an inhibitor of cysteine proteases which inhibits calpain I, calpain II, cathepsin B and cathepsin L with Kis of 190, 220, 150 and 500 pM, respectively. MG-101 induces apoptosis and inhibits tumor growth, it can be used for the research of colon cancer .
Ezurpimtrostat hydrochloride (compound 2-3) is a potent and orally active anti-fibrotic agent. Ezurpimtrostat hydrochloride reduces significantly the liver fibrosis in DEN (diethyl nitrosamine) cirrhotic rat model. Ezurpimtrostat hydrochloride can be used for the research of fibrosis, cancer, autophagy and cathepsins B (CTSB), L (CTSL) and D (CTSD) related diseases .
Ac-Leu-Val-Lys-Aldehyde is a potent cathepsin B inhibitor with IC50s of 4 nM. Ac-Leu-Val-Lys-Aldehyde significantly reduces quinolinic acid (HY-100807)-induced striatal cell death and causes accumulation of LC3-II .
Balicatib (AAE581) is a potent, orally active and selective cathepsin K inhibitor with IC50 values of 22, 61, 48, 2900 nM for cathepsin K, cathepsin B, cathepsin L, cathepsin S, respectively. Balicatib inhibits bone turnover, decreases bone formation rates. Balicatib has the potential for the research of osteoporosis .
hCAXII-IN-10 (Compound 18b) is a dual inhibitor of human carbonic anhydrase isoform XII (hCAXII) and cathepsin B, with a Ki value of 2.2 nM. hCAXII-IN-10 can inhibit the role of hCAXII in providing tumors with a pH microenvironment conducive to tumor growth, and is expected to be used in the study of tumor diseases .
Z-WEHD-FMK is a potent, cell-permeable and irreversible caspase-1/5 inhibitor. Z-WEHD-FMK also exhibits a robust inhibitory effect on cathepsin B activity (IC50=6 μM). Z-WEHD-FMK can be used to investigate cells for evidence of apoptosis .
SARS-CoV-2 Mpro-IN-6 is a covalent, irreversible and selective SARS-CoV-2 M pro inhibitor with an IC50 of 0.18 μM. SARS-CoV-2 Mpro-IN-6 does not inhibit human cathepsins B, F, K, and L, and caspase 3 .
AM4299B is an inhibitor for thiol protease. AM4299B inhibits bovine spleen cathepsin B, human kidney cathepsin L and papain with IC50s of 0.7, 0.5 and 20 μM, respectively. AM4299B can be used in research in osteoporosis, and has potential to be used as an antiparasitic agent .
SARS-CoV-2 Mpro-IN-31 (Compound 18) is an inhibitor of SARS-CoV-2 M Pro with an IC50 value of 11 nM. Additionally, SARS-CoV-2 Mpro-IN-31 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 .
Oxocarbazate is an inhibitor of human cathepsin L with the IC50 values of 6.9 nM (human Cathepsin L,0 h) 0.4 nM ((human Cathepsin L,4 h) and 5.07 μM (human cathepsin B), respectively. Oxocarbazate blockes both SARS-CoV (IC50 = 273 nM) and Ebola virus (IC50 = 193 nM) entry into 293T cells .
Ono 3307 Free base is a novel synthetic protease inhibitor that exhibits protective effects against acute pancreatitis by preventing hyperamylasemia and pancreatic edema. Ono 3307 Free base also inhibits the redistribution of lysosomal enzymes in acinar cells and mitigates lactic dehydrogenase discharge. Ono 3307 Free base effectively reduces cathepsin B leakage from lysosomes in a dose-dependent manner.
L-873724 is a potent, orally bioavailable, selective and reversible non-basic cathepsin K inhibitor, with IC50s of 0.2, 178, 264, and 5239 nM for cathepsin K, cathepsin S, cathepsin L, cathepsin B, respectively . L-873724 also exhibits an IC50 of 0.5 nM for rabbit cathepsin K. L-873724 inhibits bone resorption .
SmCB1-IN-1 (Compound 2h) is an inhibitor for S. mansonicathepsin B1 (SmCB1) with an Ki of 0.05 μM . SmCB1-IN-1 exhibits selectivity toward human off-target cathepsins (29% and 37% inhibition for CatB and CatL at 20 μM). SmCB1-IN-1 inhibits 68% Schistosoma mansoni at 1 μM .
(Rac)-Calpain Inhibitor XII is a reversible and selective inhibitor of calpain I (μ-calpain, Ki=19 nM). (Rac)-Calpain Inhibitor XII has lower affinities for calpain II (m-calpain, Ki=120 nM) and cathepsin B (Ki=750 nM). (Rac)-Calpain Inhibitor XII has the potential for studying the role of calpains in diverse processes, including neutrophil chemotaxis, neuronal signaling, and cardiac response to injury .
L-006235 (L-235) is a potent, selective, reversible and orally active inhibitor of cathepsin K, with an IC50 of 5 nM in bone resorption assay. L-006235 shows selectivity for cathepsin K (Ki=0.2 nM) over cathepsin B, cathepsin L, and cathepsin S (Ki=1, 6, and 47 μM, respectively). L-006235 can reduce collagen degradation and prevent bone loss .
(S,S)-Z-FA-FMK is a cell-permeable, irreversible cathepsin B inhibitor. (S,S)-Z-FA-FMK blocks LPS-induced production of IL-1α and IL-1β. (S,S)-Z-FA-FMK can be used as a negative control for caspase-1 and caspase-2 inhibitors because it lacks an aspartic acid residue at the P1 position .
HDAC3-IN-4 is a selective and orally active HDAC3 inhibitor with an IC50 of 89 nM. HDAC3-IN-4 induces the degradation of PD-L1 by regulating cathepsin B (CTSB) in the lysosomes, with a DC50 of 5.7 μM. HDAC3-IN-4 shows better selectivity for HDAC3 over HDAC1, HDAC6, HDAC7, and HDAC8 .
Tetromycin B is a cysteine protease inhibitor with Ki values of 0.62, 1.42, 32.5, and 1.59 μM for rhodesain, falcipain-2, cathepsin L, and cathepsin B, respectively. It inhibits the growth of T. brucei in vitro (IC50=30.87 μM). Tetromycin B is also cytotoxic to HEK293T kidney cells and J774.1 macrophages (IC50s=71.77 and 20.2 μM, respectively).
K777 is a potent, orally active and irreversible cysteine protease inhibitor. K777 is also a potent CYP3A4 inhibitor with an IC50 of 60 nM and a selective CCR4 antagonist featuring the potent chemotaxis inhibition. K777 irreversibly inhibits Cruzain, the major cysteine protease of Trypansoma cruzi, and cathepsins B and L. K777 is a broad-spectrum antiviral by targeting cathepsin-mediated cell entry. K777 inhibits SARS-CoV and EBOV pseudovirus entry with IC50 values of 0.68 nM and 0.87 nM, respectively .
Z-FA-FMK ((1S)-Z-FA-FMK) is a potent Cathepsin B and L inhibitor. Z-FA-FMK blocks the induction of DEVDase activity, DNA fragmentation, and externalization of phosphatidylserine by selective synthetic retinoid-related molecules (RRMs). Z-FA-FMK inhibits apoptosis. Z-FA-FMK inhibits caspase activity and selectively inhibits recombinant effector caspases 2, -3, -6, and -7. Z-FA-FMK is a viral inhibitor. Z-FA-FMK inhibits reovirus replication in a susceptible host .
K777 tosylate is a potent, orally active and irreversible cysteine protease inhibitor. K777 tosylate is also a potent CYP3A4 inhibitor with an IC50 of 60 nM and a selective CCR4 antagonist featuring the potent chemotaxis inhibition. K777 tosylate irreversibly inhibits Cruzain, the major cysteine protease of Trypansoma cruzi, and cathepsins B and L. K777 tosylate is a broad-spectrum antiviral by targeting cathepsin-mediated cell entry. K777 tosylate inhibits SARS-CoV and EBOV pseudovirus entry with IC50 values of 0.68 nM and 0.87 nM, respectively .
NDI-Lyso is a lysosome-targeted anticancer agent that induces the formation of rigid long fibers in cancer cell lysosomes through an enzyme-instructed self-assembly (EISA) mechanism catalyzed by cathepsin B. This process triggers lysosomal swelling, membrane permeabilization (LMP), and membrane disruption, ultimately leading to cancer cell apoptosis via a non-classical caspase-independent pathway. NDI-Lyso exhibits significant selective anticancer activity in various cancer cell lines and drug-resistant cancer cells (IC50 ~10 μM) while showing low toxicity to normal cells (IC50 > 60 μM) .
diABZI-V/C-DBCO (Compound 3) is a potent STING agonist. diABZI-V/C-DBCO can release diABZI-amine upon activation by cathepsin B to activate STING, leading to the production of interferons and other immune-stimulatory molecules, thereby enhancing the immune system's response to tumors. The EC50 values for diABZI-V/C-DBCO and diABZI-amine in activating STING in THP1-Dual cells are 1.47 and 0.144 nM, respectively, and in primary mouse splenocytes, the EC50 values are 7.7 and 0.17 μM, respectively. diABZI-V/C-DBCO can be used in cancer immunotherapy research .
Arg-Arg-AMC acetate is the acetate salt form of Arg-Arg-AMC (HY-P4340). Arg-Arg-AMC acetate is a fluorescent substrate for cathepsin B and used in the cathepsin B activity assay .
Z-Arg-Arg-βNA acetate is a sensitive dipeptide substrate of the protease Cathepsin B and resistant to proteases H and L. Z-Arg-Arg-βNA acetate can serve as an important tool for distinguishing non-Cathepsin B type proteins .
Arg-Arg-AMC is a highly selective substrate of Cathepsin B. Arg-Arg-AMC can be used to cathepsin B activity assay in cancer cells, while cathepsin B is assocaited with cell invasive and metastatic phenotype in numerous types of cancer .
Cathepsin D/E Substrate, Fluorogenic, 11 amino acid peptide, is a selective substrate for cathepsins D and E. Cathepsin D/E Substrate, Fluorogenic does not act as a substrate for cathepsins B, H, or L .
Ac-Leu-Val-Lys-Aldehyde is a potent cathepsin B inhibitor with IC50s of 4 nM. Ac-Leu-Val-Lys-Aldehyde significantly reduces quinolinic acid (HY-100807)-induced striatal cell death and causes accumulation of LC3-II .
Z-WEHD-FMK is a potent, cell-permeable and irreversible caspase-1/5 inhibitor. Z-WEHD-FMK also exhibits a robust inhibitory effect on cathepsin B activity (IC50=6 μM). Z-WEHD-FMK can be used to investigate cells for evidence of apoptosis .
Abz-GIVRAK(Dnp) is the most efficient substrate for cathepsin B and is highly selective for this enzyme among lysosomal cysteine proteases. After Abz-GIVRAK(Dnp) is hydrolyzed, aminoacylbenziminosulfosuccinic acid (Abz-SAS) is released, and dinitrobenzoyl (Dnp) is also released. The product of this hydrolysis reaction, Abz-SAS, is fluorescent under ultraviolet light and can emit a fluorescent signal .
(S,S)-Z-FA-FMK is a cell-permeable, irreversible cathepsin B inhibitor. (S,S)-Z-FA-FMK blocks LPS-induced production of IL-1α and IL-1β. (S,S)-Z-FA-FMK can be used as a negative control for caspase-1 and caspase-2 inhibitors because it lacks an aspartic acid residue at the P1 position .
NDI-Lyso is a lysosome-targeted anticancer agent that induces the formation of rigid long fibers in cancer cell lysosomes through an enzyme-instructed self-assembly (EISA) mechanism catalyzed by cathepsin B. This process triggers lysosomal swelling, membrane permeabilization (LMP), and membrane disruption, ultimately leading to cancer cell apoptosis via a non-classical caspase-independent pathway. NDI-Lyso exhibits significant selective anticancer activity in various cancer cell lines and drug-resistant cancer cells (IC50 ~10 μM) while showing low toxicity to normal cells (IC50 > 60 μM) .
Abz-HPGGPQ-EDDnp (Cathepsin K substrate) is a biological active peptide. (Cathepsins are a class of globular lysosomal proteases, playing a vital role in mammalian cellular turnover. They degrade polypeptides and are distinguished by their substrate specificities. Cathepsin K is the lysosomal cysteine protease involved in bone remodeling and resorption. It has potential as a drug target in autoimmune diseases and osteoporosis.This FRET peptide can be used to monitor selectively cathepsin K activity in physiological fluids and cell lysates. Abz-HPGGPQ-EDDnp [where Abz represents o-aminobenzoic acid and EDDnp represents N -(2, 4-dinitrophenyl)-ethylenediamine], a substrate initially developed for trypanosomal enzymes, is efficiently cleaved at the Gly-Gly bond by cathepsin K. This peptide is resistant to hydrolysis by cathepsins B, F, H, L, S and V, Ex/Em=340 nm/420 nm.)
3-Epiursolic Acid is a triterpenoid that can be isolated from Eriobotrya japonica, acts as a competitive inhibitor of cathepsin L (IC50, 6.5 μM; Ki, 19.5 μM), with no obvious effect on cathepsin B .
Dibenzyl trisulfide (DTS) is an active ingredient that can be isolated from Petiveria alliacea L.. Dibenzyl trisulfide inhibits cell proliferation and migration. Dibenzyl trisulfide decreased the mRNA and protein expression of BAK-1 and LTA. Dibenzyl trisulfide induces lysosomal membrane permeabilization and cathepsin B release .
Cathepsin B Protein, Mouse (HEK293, His) is an approximately 32-50 kDa Cathepsin B protein with a His-flag. Cathepsin B is an enzymatic protein belonging to the peptidase C1 family.
Cathepsin B Protein, a thiol protease, is crucial for intracellular protein degradation, cleaving matrix extracellular phosphoglycoprotein MEPE. It's implicated in solubilizing cross-linked TG/thyroglobulin in the thyroid follicle lumen. Associated with tumor invasion and metastasis, Cathepsin B signifies potential relevance in cancer-related pathways. Cathepsin B Protein, Human (His) is the recombinant human-derived Cathepsin B protein, expressed by E. coli , with C-6*His labeled tag. The total length of Cathepsin B Protein, Human (His) is 322 a.a., with molecular weight of 34 & 38-50 kDa, respectively.
Cathepsin B is a lysosomal cysteine protease that plays a role in intracellular protein catabolism. Cathepsin B mediates JNK signaling pathway to regulate the migration of glioma initiation cells. Cathepsin B is involved in the pathology of chronic inflammatory diseases of the airway and joints, as well as cancer and pancreatitis. Cathepsin B Protein, Rat (HEK293, His) is the recombinant rat-derived Cathepsin B protein, expressed by HEK293 , with C-His labeled tag. The total length of Cathepsin B Protein, Rat (HEK293, His) is 322 a.a., with molecular weight of 35-43 kDa.
Cathepsin B Protein, Human (HEK293, His) functions in intracellular protein catabolism and in certain situations may also be involved in other physiological processes, such as processing of antigens in the immune response, hormone activation and bone turnover.
Cathepsin B Protein, a thiol protease, is crucial for intracellular protein degradation, cleaving matrix extracellular phosphoglycoprotein MEPE. It's implicated in solubilizing cross-linked TG/thyroglobulin in the thyroid follicle lumen. Associated with tumor invasion and metastasis, Cathepsin B signifies potential relevance in cancer-related pathways. Cathepsin B Protein, Human (L26V, HEK293, His) is the recombinant human-derived Cathepsin B protein, expressed by HEK293 , with C-His labeled tag and L26V, , , , mutation. The total length of Cathepsin B Protein, Human (L26V, HEK293, His) is 322 a.a., with molecular weight of 10-45 kDa.
Cathepsin H Protein, Mouse (HEK293, His) is an approximately 36-40 kDa cathepsin H protein with a His-flag. Cathepsin H is a lysosomal cysteine protease of the papain family.
Cathepsin B Antibody is a non-conjugated and Rabbit origined monoclonal antibody about 38 kDa, targeting to Cathepsin B. It can be used for WB,ICC/IF,IHC-P assays with tag free, in the background of Human.
hCAIX-IN-21 (compound 16c) is a potent hCAIX inhibitor with KI values of 5.2, 3.5, 12.6, 13600 nM for hCAIX, hCA II, hCA XII, hCA I, respectively. hCAIX-IN-21 inhibits cathepsin B enzyme activity .
hCAXII-IN-10 (Compound 18b) is a dual inhibitor of human carbonic anhydrase isoform XII (hCAXII) and cathepsin B, with a Ki value of 2.2 nM. hCAXII-IN-10 can inhibit the role of hCAXII in providing tumors with a pH microenvironment conducive to tumor growth, and is expected to be used in the study of tumor diseases .
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