1. Signaling Pathways
  2. Metabolic Enzyme/Protease
  3. Ser/Thr Protease

Ser/Thr Protease

Serine proteases; Serine endopeptidases; Threonine proteases

Serine (Ser) proteases catalyse the hydrolysis of specific peptide bonds in their substrates and this activity depends on a set of amino acids in the active site of the enzyme, one of which is always a serine. There are two families especially well studied, the trypsin family and the subtilisin family. Serine proteases play crucial roles in a wide variety of cellular as well as extracellular functions, including the process of blood clotting, protein digestion, cell signaling, inflammation, and protein processing. Threonine (Thr) proteases are a family of proteolytic enzymes harbouring a threonine residue within the active site. The prototype members of this class of enzymes are the catalytic subunits of the proteasome, however the acyltransferases convergently evolved the same active site geometry and mechanism.

Cat. No. Product Name Effect Purity
  • HY-18234A
    Leupeptin hemisulfate
    Inhibitor ≥98.0%
    Leupeptin hemisulfate is a broad-spectrum, membrane-permeable protease inhibitor. Leupeptin hemisulfate potently inhibits serine, cysteine and threonine proteases. Leupeptin hemisulfate inhibits Mpro (the main protease of SARS-CoV-2) and also has anti-inflammatory activity.
  • HY-P0017
    Aprotinin is a bovine pancreatic trypsin inhibitor (BPTI) inhibitor which inhibits trypsin and chymotrypsin with Kis of 0.06 pM and 9 nM, respectively.
  • HY-12821
    AEBSF hydrochloride
    Inhibitor 99.90%
    AEBSF hydrochloride is an irreversible inhibitor of serine proteases, such as chymotrypsin, kallikrein, plasmin, thrombin, and trypsin.
  • HY-13512
    Camostat mesylate
    Inhibitor 99.97%
    Camostat mesylate (Camostat mesilate) is an orally active, synthetic serine protease inhibitor for chronic pancreatitis. Camostat mesylate, an inhibitor of TMPRSS2, shows antiviral activity against SARS-CoV-2. Camostat mesylate also inhibits the activity of prostasin, trypsin, and matriptase.
  • HY-100626
    Inhibitor 99.07%
    WNK463 is an orally bioavailable pan-With-No-Lysine (K) (WNK)-kinase inhibitor with IC50s of 5 nM, 1 nM, 6 nM, and 9 nM for WNK1, WNK2, WNK3, and WNK4, respectively.
  • HY-134616
    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.
  • HY-134432B
    Boc-Gln-Ala-Arg-AMC acetate
    Boc-Gln-Ala-Arg-AMC acetate is a fluorogenic substrate for trypsin. Boc-Gln-Ala-Arg-AMC acetate can also be used for measuring the proteolytic activity of TMPRSS2.
  • HY-123133
    Inhibitor 98.08%
    PKSI-527 is a new, highly selective plasma kallikrein inhibitor. PKSI-527 can suppress collagen-induced arthritis (CIA) by modifying the kallikrein-kinin system.
  • HY-108717
    Proteinase K
    Proteinase K (Protease K) is a nonspecific serine protease that is useful for general digestion of proteins. Proteinase K is active in the presence of SDS or urea and over a wide range of pH (4-12), salt concentrations, and temperatures. Proteinase K can be use for promoting methods of viral nucleic acid extraction, and detection.
  • HY-P0206
    Inhibitor 99.86%
    Bradykinin is an active peptide that is generated by the kallikrein-kinin system. It is a inflammatory mediator and also recognized as a neuromediator and regulator of several vascular and renal functions.
  • HY-B0190A
    Nafamostat mesylate
    Inhibitor 98.06%
    Nafamostat mesylate, a synthetic serine protease inhibitor, is an anticoagulant. Nafamostat mesylate supresses T cell auto-reactivity by decreasing granzyme activity and CTL cytolysis. Nafamostat mesylate blocks activation of SARS-CoV-2..
  • HY-120088A
    PF-06446846 hydrochloride
    Inhibitor 99.85%
    PF-06446846 hydrochloride is an orally active and highly selective inhibitor of translation of Proprotein convertase subtilisin/kexin type 9 (PCSK9). PF-06446846 hydrochloride inhibits PCSK9 by inducing the ribosome to stall around codon 34.
  • HY-132591
    Inhibitor 98.10%
    Inclisiran (ALN-PCSsc) is a double-stranded small interfering RNA (siRNA) molecule that inhibits the transcription of PCSK-9. Inclisiran can be used for hyperlipidemia and cardiovascular disease (CVD) research.
  • HY-112094
    Inhibitor 99.44%
    WNK-IN-11 is an allosteric With-No-Lysine (WNK) kinase inhibitor, with an IC50 of 4 nM for WNK1.
  • HY-W018781
    Benzamidine hydrochloride
    Inhibitor ≥98.0%
    Benzamidine hydrochloride is a trypsin-like serine proteases with Kis of 20, 21, 97, 110, 320 and 750 μM against Tryptase, Trypsin, uPA, Factor Xa, Thrombin and tPA, respectively.
  • HY-129047
    Trypsin is a serine protease enzyme, and hydrolyzes proteins at the carboxyl side of the Lysine or Arginine. Trypsin activates PAR2 and PAR4. Trypsin induces cell-to-cell membrane fusion in PDCoV infection by the interaction of S glycoprotein of PDCoV and pAPN. Trypsin also promotes cell proliferation and differentiation. Trypsin can be used in the research of wound healing and neurogenic inflammation.
  • HY-P9930
    Evolocumab (AMG 145) is a human monoclonal antibody that inhibits PCSK9. Evolocumab binds to the circulating PCSK9 protein, inhibiting it from binding to the LDLR. Evolocumab can be used for the research of hypercholesterolemia and atherosclerotic cardiovascular diseases.
  • HY-12402
    Inhibitor 99.54%
    SBC-115076 is a potent proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitor. PCSK9 is a proprotein convertase, which plays a crucial role in LDL receptor metabolism.
  • HY-108910
    Chymotrypsin (Chymotrypsin A) is a serine protease produced by the pancreas. Chymotrypsin cleaves protein chains at the carboxyl side of aromatic amino acids.

    Unit Definition:
    One unit is defined as the amount of Chymotrypsin that will hydrolize 1.0 μmol of BTEE per minute at pH 7.8 and 25℃.
  • HY-P2276
    Inhibitor 99.74%
    Pep2-8 is a PCSK9 inhibitor with a binding KD of 0.7 μM and an IC50 of 1.4 μM.
Cat. No. Product Name / Synonyms Application Reactivity