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Chymotrypsin (Chymotrypsin A) is a serine protease produced by the pancreas. Chymotrypsin cleaves protein chains at the carboxyl side of aromatic amino acids .
Chymotrypsin (Chymotrypsin A) (MS grade) is a serine protease produced by the pancreas. Chymotrypsin (MS grade) cleaves protein chains at the carboxyl side of aromatic amino acids .
Rivulariapeptolides 1155 is a potent serine protease inhibitor with IC50s of 41.84, 4.94, 56.54 nM for chymotrypsin, elastase, prpteinase K, respectively .
Suc-Ala-Ala-Phe-AMC is a fluorogenic chymotrypsin substrate, can be hydrolyzed by endopeptidase. Suc-Ala-Ala-Phe-AMC has been used in both in vivo assays of the acrosome reaction and in vitro enzyme assays .
Rivulariapeptolides 1121 is a high potent and selective serine protease inhibitor with IC50 values of 35.52 nM, 13.24 nM and 48.05 nM for chymotrypsin, elastase and proteinase K, respectively .
Rivulariapeptolides 1185 is a high potent and selective serine protease inhibitor with IC50 values of 13.17 nM, 23.59 nM and 55.26 nM for chymotrypsin, elastase and proteinase K, respectively .
Rivulariapeptolides 988 is a high potent and selective serine protease inhibitor with IC50 values of 95.46 nM, 15.29 nM and 85.50 nM for chymotrypsin, elastase and proteinase K, respectively .
N-Acetyl-DL-phenylalanine β-naphthyl ester is an aromatic amino acid ester, which functions as a chromogenic substrate for chymotrypsin and microbial serine proteases such as subtilisin .
ONO-3307 is a protease inhibitor that competitively inhibits a variety of proteases including trypsin, thrombin, plasma kallikrein, plasmin, pancreatic kallikrein, and chymotrypsin. ONO-3307 alleviates endotoxin-induced experimental disseminated intravascular coagulation (DIC) in rats. ONO-3307 can be used in the study of thrombosis and protease-mediated diseases .
Bentiromide is a peptide that is broken down in the pancreas by chymotrypsin. The bentiromide test is an excellent means of confirming the diagnosis of pancreatic exocrine insufficiency by outpatient test of chymotrypsin function .
SP-Chymostatin B (α-MAPI) is a strong inhibitor of many proteases, including chymotrypsin, papain, chymotrypsin-like serine proteinases, chymases, and lysosomal cysteine proteinases such as cathepsins A,B,C, H, and L. SP-Chymostatin B weakly inhibits human leucocyte elastase .
Elasnin is a selective granulocyte elastase inhibitor. Elasnin is almost ineffective for pancreatic elastase, trypsin, chymotrypsin, thermolysin and papain .
Aprotinin is a bovine pancreatic trypsin inhibitor (BPTI) inhibitor which inhibits trypsin and chymotrypsin with Kis of 0.06 pM and 9 nM, respectively.
Celastrol (Tripterine;Tripterin) is a proteasome inhibitor which potently and preferentially inhibits the chymotrypsin-like activity of a purified 20S proteasome with IC50 of 2.5 μM.
Ixazomib citrate (MLN9708) is a reversible inhibitor of the chymotrypsin-like proteolytic β5 site of the 20S proteasome with an IC50 of 3.4 nM and a Ki of 0.93 nM.
Cyclotheonellazole A is a natural macrocyclic peptide and a potent elastase inhibitor (IC50=0.034 nM). Cyclotheonellazole A inhibits chymotrypsin with an IC50 value of 0.62 nM .
Crocapeptin C is a cyclic depsipeptide that can be extrated from Melittangium boletus. Crocapeptin C exhibits potent inhibitory activity against chymotrypsin with an IC50 value of 0.5 µM .
Ixazomib (MLN2238) is a selective, potent, and reversible proteasome inhibitor, which inhibits the chymotrypsin-like proteolytic (β5) site of the 20S proteasome with an IC50 of 3.4 nM (Ki of 0.93 nM).
GSK3494245 (DDD01305143) is a potent, orally active, and selective inhibitor of the chymotrypsin-like activity of the parasite proteasome binding in a site sandwiched between the β4 and β5 subunits (IC50=0.16 μM for WT L. donovani proteasomes). GSK3494245 moderately inhibits chymotrypsin-like activity of human proteasome (IC50: purified 26S=13 µM; enriched THP-1 extracts IC50=40µM). GSK3494245 exhibits attractive biological and biosafety properties .
Elastatinal is a potent and competitive inhibitor of elastase, with a Ki of 0.21 μM. Elastatinal more potently inhibits pancreatic elastase versus leucocyte elastase. Elastatinal shows no activity on human leucocyte chymotrypsin-like protease .
Ulinastatin (Uristatin) is a trypsin and serine protease inhibitor. Ulinastatin is the main protein binding inhibitor of various trypsin, chymotrypsin, and various pancreatic proteases. Ulinastatin shows neuroprotective, anti-inflammatory, anti-apoptotic, anti-oxidant effects .
Z-LLF-CHO (Z-Leu-Leu-Phe-CHO) is a potent inhibitor of the chymotrypsin-like activity of the pituitary multicatalytic proteinase complex (Ki = 460 nM). Z-LLF-CHO is also a NF-κB nuclear translocation inhibitor .
VR23 is a small molecule that potently inhibits the activities of trypsin-like proteasomes (IC50=1 nM), chymotrypsin-like proteasomes (IC50=50-100 nM), and caspase-like proteasomes (IC50=3 μM).
Delanzomib (CEP-18770) is a potent and orally active chymotrypsin-like activity of the proteasome inhibitor with an IC50 of 3.8 nM. Delanzomib inhibits NF-κB activity, induces cancer cell apoptotic, and has strong antiangiogenic and anti-cancer activities .
Enzyme-IN-1 (compound 1) is a peptide-based inhibitor of N-terminal nucleophile (Ntn) hydrolases. Specifically, Enzyme-IN-1 inhibits the chymotrypsin-like activity (CT-L) of the 20S proteasome. Enzyme-IN-1 may has potential antiinflammatory properties .
MG-115 is a potent and reversible proteasome inhibitor, with Kis of 21 nM and 35 nM for 20S and 26S proteasome, respectively. MG-115 specifically inhibit the chymotrypsin-like activity of the proteasome, induces p53-dependent apoptosis .
MeO-Succ-Arg-Pro-Tyr-AMC is an analogue of 7-amido-4-methylcoumarin (HY-D0027). MeO-Succ-Arg-Pro-Tyr-AMC is a sensitive fluorescent substrate chymotrypsin-like protease. (λex=341 nm, λem=441 nm).
Proteasome-activating peptide 1 TFA is a peptide and a potent proteasome activator. Proteasome-activating peptide 1 TFA increases the chymotrypsin-like proteasomal catalytic activity and, consequently, proteolytic rates both in vitro and in culture. Proteasome-activating peptide 1 TFA prevents protein aggregation in a cellular model of amyotrophic lateral sclerosis .
3CPLro-IN-1 (compound A17) is a potent and orally active inhibitor of SARS-CoV-2 3CLpro with an IC50 of 5.65 μM. 3-Chymotrypsin-like cysteine protease (3CLpro) is an indispensable protein in viral replication and represents an attractive agent target for fighting COVID-19 .
Suc-Ala-Ala-Pro-Phe-SBzl can be used as the substrate of rat intestinal mast cell protease (RMCP I), rat skeletal muscle mast cell protease (RMCP II) and Chymotrypsin (HY-108910). Suc-Ala-Ala-Pro-Phe-SBzl can be hydrolyzed by glycine (R208G) .
Proteasome inhibitor IX (PS-IX; AM114) is a Chalcone derivative and a chymotrypsin-like activity of the 20S proteasome inhibitor with an IC50 value of ~1 μM. Proteasome inhibitor IX exhibits HCT116 p53 +/+ cells growth inhibitory activity with an IC50 value of 1.49 μM. Proteasome inhibitor IX has potent anticancer activity .
3CPLro-IN-2 (compound C1) is a potent and orally active inhibitor of SARS-CoV-2 3CLpro with an IC50 and Ki of 1.55 and 6.09 μM, respectively. 3-Chymotrypsin-like cysteine protease (3CLpro) is an indispensable protein in viral replication and represents an attractive agent target for fighting COVID-19 .
Picornain 3C is a protease found in picornaviruses, which cleaves peptide bonds of non-terminal sequences. Picornain 3C is an intermediate between the serine peptidase chymotrypsin and the cysteine peptidase papain. Picornain 3C shows endopeptidase activity by selectively cleaving Gln-Gly bonds in the polyprotein of poliovirus and with substitution of Glu for Gln, and Ser or Thr for Gly in other picornaviruses .
Z-Gly-Pro-Phe-Leu-CHO (Z-GPFL-CHO) is a tetrapeptide aldehyde that acts as a highly selective and potent proteasomal inhibitor (Ki = 1.5 µM for branched chain amino acid preferring, 2.3 µM for small neutral amino acid preferring, and 40.5 µM for chymotrypsin-like activities; IC50 = 3.1 µM for peptidyl-glutamyl peptide hydrolyzing activity) .
K-252c, a staurosporine analog isolated from Nocardiopsis sp., is a cell-permeable PKC inhibitor, with an IC50 of 2.45 µM. K-252c induces apoptosis in human chronic myelogenous leukemia cancer cells. K-252c also inhibits β-lactamase, chymotrypsin, and malate dehydrogenase .
Epoxomicin (BU-4061T) is an epoxyketone-containing natural product and a potent, selective and irreversible proteasome inhibitor. Epoxomicin covalently binds to the LMP7, X, MECL1, and Z catalytic subunits of the proteasome and potently inhibits primarily the chymotrypsin-like activity. Epoxomicin can cross the blood-brain barrier. Epoxomicin has strongly antitumor and anti-inflammatory activity .
PI-1840 is a potent and selective chymotrypsin-like (CT-L) inhibitor for with an IC50 value of 27 nM. PI-1840 inhibits cell proliferation and arrest cell cycle at G2/M phase. PI-1840 induces apoptosis and induces autophagy. PI-1840 induces the accumulation of proteasome substrates p27, Bax, and IκB-α .
FK706 is a potent, slow-binding and competitive inhibitor of human neutrophil elastase with an IC50 of 83 nM and a Ki of 4.2 nM. FK706 also inhibits mouse neutrophil elastase and porcine pancreatic elastase with IC50s of 22 nM and 100 nM, respectively, and has no inhibitory activity against other serine proteinases such as human pancreatic trypsin, human pancreatic α-chymotrypsin and human leukocyte cathepsin G. FK706 has anti-inflammatory effect .
ONX-0914 (PR-957) is a selective inhibitor of low-molecular mass polypeptide-7 (LMP7), the chymotrypsin-like subunit of the immunoproteasome. ONX-0914 blocks cytokine production and attenuates progression of experimental arthritis. ONX-0914 is a noncompetitive irreversible inhibitor of the mycobacterial proteasome (Ki=5.2 μM). ONX-0914 reactivates latent HIV-1 through p-TEFb activation mediated by HSF-1 .
20S Proteasome activator 1 is a potent 20S proteasome activator with EC200 values of 0.3 μM, 0.7 μM and 1.8 μM for trypsin-like site, chymotrypsin-like site and caspase-like site. 20S Proteasome activator 1 translates well in a cellular system, preventing the accumulation of the pathogenic A53T mutant of α-synuclein. 20S Proteasome activator 1 can be used for researching neurodegenerative diseases .
ONX-0914 (PR-957) TFA is a selective inhibitor of low-molecular mass polypeptide-7 (LMP7), the chymotrypsin-like subunit of the immunoproteasome. ONX-0914 TFA blocks cytokine production and attenuates progression of experimental arthritis. ONX-0914 TFA is a noncompetitive irreversible inhibitor of the mycobacterial proteasome (Ki=5.2 μM). ONX-0914 TFA reactivates latent HIV-1 through p-TEFb activation mediated by HSF-1 .
N-Acetyl-DL-phenylalanine β-naphthyl ester is an aromatic amino acid ester, which functions as a chromogenic substrate for chymotrypsin and microbial serine proteases such as subtilisin .
MeO-Succ-Arg-Pro-Tyr-AMC is an analogue of 7-amido-4-methylcoumarin (HY-D0027). MeO-Succ-Arg-Pro-Tyr-AMC is a sensitive fluorescent substrate chymotrypsin-like protease. (λex=341 nm, λem=441 nm).
Chymotrypsin (Chymotrypsin A) is a serine protease produced by the pancreas. Chymotrypsin cleaves protein chains at the carboxyl side of aromatic amino acids .
Picornain 3C is a protease found in picornaviruses, which cleaves peptide bonds of non-terminal sequences. Picornain 3C is an intermediate between the serine peptidase chymotrypsin and the cysteine peptidase papain. Picornain 3C shows endopeptidase activity by selectively cleaving Gln-Gly bonds in the polyprotein of poliovirus and with substitution of Glu for Gln, and Ser or Thr for Gly in other picornaviruses .
Suc-Ala-Ala-Phe-AMC is a fluorogenic chymotrypsin substrate, can be hydrolyzed by endopeptidase. Suc-Ala-Ala-Phe-AMC has been used in both in vivo assays of the acrosome reaction and in vitro enzyme assays .
Aprotinin is a bovine pancreatic trypsin inhibitor (BPTI) inhibitor which inhibits trypsin and chymotrypsin with Kis of 0.06 pM and 9 nM, respectively.
Eglin c (41-49) is a peptide fragment related to eglin c. Eglin c (41-49) shows inhibitory effects to cathepsin G and α-chymotrypsin with Ki values of 42 and 20 μM, respectively .
Z-LLF-CHO (Z-Leu-Leu-Phe-CHO) is a potent inhibitor of the chymotrypsin-like activity of the pituitary multicatalytic proteinase complex (Ki = 460 nM). Z-LLF-CHO is also a NF-κB nuclear translocation inhibitor .
Proteasome-activating peptide 1 is a peptide, which increases the chymotrypsin-like proteasomal catalytic activity and, consequently, proteolytic rates both in vitro and in culture. Proteasome-activating peptide 1 prevents protein aggregation in a cellular model of amyotrophic lateral sclerosis .
Proteasome-activating peptide 1 TFA is a peptide and a potent proteasome activator. Proteasome-activating peptide 1 TFA increases the chymotrypsin-like proteasomal catalytic activity and, consequently, proteolytic rates both in vitro and in culture. Proteasome-activating peptide 1 TFA prevents protein aggregation in a cellular model of amyotrophic lateral sclerosis .
Suc-Ala-Ala-Pro-Phe-SBzl can be used as the substrate of rat intestinal mast cell protease (RMCP I), rat skeletal muscle mast cell protease (RMCP II) and Chymotrypsin (HY-108910). Suc-Ala-Ala-Pro-Phe-SBzl can be hydrolyzed by glycine (R208G) .
Z-Phe-Leu-Glu-pNA is a chromogenic substrate for glutamyl endopeptidases. Z-Phe-Leu-Glu-pNA has been used as a synthetic substrate in the study of proteolytic enzymes, including trypsin treatment, subtilisin and chymotrypsin. Z-Phe-Leu-Glu-pNA plays an important role in hormone disorders such as prostate cancer and breast cancer .
Z-Gly-Pro-Phe-Leu-CHO (Z-GPFL-CHO) is a tetrapeptide aldehyde that acts as a highly selective and potent proteasomal inhibitor (Ki = 1.5 µM for branched chain amino acid preferring, 2.3 µM for small neutral amino acid preferring, and 40.5 µM for chymotrypsin-like activities; IC50 = 3.1 µM for peptidyl-glutamyl peptide hydrolyzing activity) .
Rivulariapeptolides 1155 is a potent serine protease inhibitor with IC50s of 41.84, 4.94, 56.54 nM for chymotrypsin, elastase, prpteinase K, respectively .
Rivulariapeptolides 1121 is a high potent and selective serine protease inhibitor with IC50 values of 35.52 nM, 13.24 nM and 48.05 nM for chymotrypsin, elastase and proteinase K, respectively .
Rivulariapeptolides 1185 is a high potent and selective serine protease inhibitor with IC50 values of 13.17 nM, 23.59 nM and 55.26 nM for chymotrypsin, elastase and proteinase K, respectively .
Rivulariapeptolides 988 is a high potent and selective serine protease inhibitor with IC50 values of 95.46 nM, 15.29 nM and 85.50 nM for chymotrypsin, elastase and proteinase K, respectively .
Aprotinin is a bovine pancreatic trypsin inhibitor (BPTI) inhibitor which inhibits trypsin and chymotrypsin with Kis of 0.06 pM and 9 nM, respectively.
Celastrol (Tripterine;Tripterin) is a proteasome inhibitor which potently and preferentially inhibits the chymotrypsin-like activity of a purified 20S proteasome with IC50 of 2.5 μM.
Crocapeptin C is a cyclic depsipeptide that can be extrated from Melittangium boletus. Crocapeptin C exhibits potent inhibitory activity against chymotrypsin with an IC50 value of 0.5 µM .
K-252c, a staurosporine analog isolated from Nocardiopsis sp., is a cell-permeable PKC inhibitor, with an IC50 of 2.45 µM. K-252c induces apoptosis in human chronic myelogenous leukemia cancer cells. K-252c also inhibits β-lactamase, chymotrypsin, and malate dehydrogenase .
Epoxomicin (BU-4061T) is an epoxyketone-containing natural product and a potent, selective and irreversible proteasome inhibitor. Epoxomicin covalently binds to the LMP7, X, MECL1, and Z catalytic subunits of the proteasome and potently inhibits primarily the chymotrypsin-like activity. Epoxomicin can cross the blood-brain barrier. Epoxomicin has strongly antitumor and anti-inflammatory activity .
CTRC proteins critically regulate trypsinogen and procarboxypeptidase, precisely cleaving their zymogen precursors to influence activation and degradation. Its chymotrypsin-type protease activity helps control enzyme processing. CTRC Protein, Human (HEK293, His) is the recombinant human-derived CTRC protein, expressed by HEK293 , with C-6*His labeled tag. The total length of CTRC Protein, Human (HEK293, His) is 252 a.a., with molecular weight of 33-40 kDa.
CTRL-1 protein is an important member of the peptidase S1 family. As a serine protease, it catalyzes the hydrolysis of peptide bonds. CTRL-1 may share conserved features with related proteins that play important roles in cellular processes related to proteolysis and regulation of biological pathways. CTRL-1 Protein, Human (HEK293, His) is the recombinant human-derived CTRL-1 protein, expressed by HEK293 , with C-6*His labeled tag. The total length of CTRL-1 Protein, Human (HEK293, His) is 246 a.a., with molecular weight of 28-38 kDa.
The function of the CELA2A protein as elastase goes beyond its traditional role as it not only enhances insulin signaling but also appears to play a potential physiological role in cellular glucose metabolism. This multifaceted protein circulates in the plasma and exerts regulatory effects by reducing platelet overactivation. CELA2A Protein, Human (His) is the recombinant human-derived CELA2A protein, expressed by E. coli , with N-6*His labeled tag. The total length of CELA2A Protein, Human (His) is 241 a.a., with molecular weight of ~29.9 kDa.
rHuchymotrypsin-like elastase family member 3A/CELA3A, His; chymotrypsin-Like Elastase Family Member 3A; Elastase IIIA; Elastase-3A; Protease E; CELA3A; ELA3; ELA3A
CELA3A Protein, an efficient alanine-specific protease, exhibits minimal elastolytic activity. CELA3A Protein, Human (HEK293, His) is the recombinant human-derived CELA3A protein, expressed by HEK293 , with C-6*His labeled tag. The total length of CELA3A Protein, Human (HEK293, His) is 255 a.a., with molecular weight of ~31.0 kDa.
The elastase IIIB/CELA3B protein exhibits remarkable efficiency as a protease, showing a clear preference for alanine specificity while exhibiting limited elastolytic activity. This unique zymogram makes this protein a promising candidate for precise substrate cleavage, especially when processing alanine-rich substrates. Elastase IIIB/CELA3B Protein, Mouse (Myc, His) is the recombinant mouse-derived Elastase IIIB/CELA3B protein, expressed by E. coli , with N-His, C-Myc labeled tag. The total length of Elastase IIIB/CELA3B Protein, Mouse (Myc, His) is 242 a.a., with molecular weight of ~31.1 kDa.
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