1. Signaling Pathways
  2. Anti-infection
  3. Virus Protease

Virus Protease

Viral proteases are enzymes encoded by the genetic material (DNA or RNA) of viral pathogens. Viral proteases catalyze the cleavage of specific peptide bonds in viral polyprotein precursors or in cellular proteins. Viral proteases may use different catalytic mechanisms involving either serine, cysteine or aspartic acid residues to attack the scissile peptide bond. Selective recognition of these sequence patterns by a complementary substrate binding site of the enzyme ensures a high degree of specific recognition and cleavage.

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), is the cause of the respiratory illness coronavirus disease 2019 (COVID-19). Initial spike protein priming by transmembrane protease, serine 2 (TMPRSS2) is essential for entry of SARS-CoV-2. After a SARS-CoV-2 virion attaches to a target cell, the cell's protease TMPRSS2 cuts open the spike protein of the virus, exposing a fusion peptide.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-N0470S5
    L-Lysine-d9 hydrochloride
    Inhibitor ≥99.0%
    L-Lysine-d9 (hydrochloride) is the deuterium labeled L-Lysine. L-lysine hydrochloride is an essential amino acid for humans with various benefits including treating herpes, increasing calcium absorption, reducing diabetes-related illnesses and improving gut health.
    L-Lysine-d<sub>9</sub> hydrochloride
  • HY-144645
    SP-471P
    Inhibitor 99.46%
    SP-471P is a potent dengue virus (DENV) protease inhibitor with EC50s of 5.9 μM, 1.4 μM, 5.1 μM and 1.7 μM for DENV1, DENV2, DENV3 and DENV4, respectively and CC50 value over 100 μM. SP-471P can reduce DENV viral RNA synthesis.
    SP-471P
  • HY-N0469S1
    L-Lysine-13C6 dihydrochloride
    Inhibitor 98.70%
    L-Lysine-13C6 (dihydrochloride) is the 13C-labeled L-Lysine dihydrochloride. L-lysine dihydrochloride is an essential amino acid[1][2] with important roles in connective tissues and carnitine synthesis, energy production, growth in children, and maintenance of immune functions[2].
    L-Lysine-<sup>13</sup>C<sub>6</sub> dihydrochloride
  • HY-B1537
    Azaribine
    Inhibitor ≥99.0%
    Azaribine (2',3',5'-Tri-O-acetyl-6-azauridine) is a potent orotidine monophosphate decarboxylase (OMPD) inhibitor. Azaribine is an antiviral inhibitor of several RNA viruses and inhibits viral genome replication and gene transcription. Azaribine shows broad-spectrum antiviral activity (EC50=3.80 nM-1.73 μM against influenza A and B viruses; EC50=1.62 μM against ZIKV Paraiba). Azaribine, a triacetate salt of Azauridine, has the potential for psoriasis research.
    Azaribine
  • HY-161762
    RA-0002034
    Inhibitor 99.48%
    RA-0002034 is a Chikungunya virus (CHIKV) nsP2 protease inhibitor with an IC50 of 58 nM. RA-0002034 covalently modifies the catalytic cysteine in a site-specific manner.
    RA-0002034
  • HY-136149
    Mpro inhibitor N3
    Inhibitor 99.96%
    Mpro inhibitor N3 is a potent SARS-CoV-2 MPro inhibitor with an EC50 value of 16.77 µM. Mpro inhibitor N3 shows antiviral activities against HCoV-229E, FIPV, IBV and MHV-A59.
    Mpro inhibitor N3
  • HY-A0281S
    4-Phenylbutyric acid-d11
    Inhibitor 99.30%
    4-Phenylbutyric acid-d11 is the deuterium labeled 4-Phenylbutyric acid. 4-Phenylbutyric acid (4-PBA) is an inhibitor of HDAC and endoplasmic reticulum (ER) stress, used in cancer and infection research.
    4-Phenylbutyric acid-d<sub>11</sub>
  • HY-B0388R
    Probucol (Standard)
    Inhibitor 99.86%
    Probucol (Standard) is the analytical standard of Probucol. This product is intended for research and analytical applications. Probucol (DH-581) is an anti-hyperlipidemic agent by lowering the level of cholesterol in the bloodstream by increasing the rate of LDL catabolism.
    Probucol (Standard)
  • HY-144646
    SP-471
    Inhibitor 99.79%
    SP-471 is a potent dengue virus (DENV) protease inhibitor with IC50 value of 18 μM. SP-471 inhibits both intermolecular and intramolecular protease processes of DENV.
    SP-471
  • HY-N1778A
    (E)-3,4-Dimethoxycinnamic acid
    Inhibitor 99.91%
    (E)-3,4-Dimethoxycinnamic acid is the less active isomer of 3,4-Dimethoxycinnamic acid. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway. Anti-apoptotic effects.
    (E)-3,4-Dimethoxycinnamic acid
  • HY-N0470S
    L-Lysine-15N2 hydrochloride
    Inhibitor ≥98.0%
    L-Lysine-15N2 (hydrochloride) is the 15N-labeled L-Lysine hydrochloride. L-lysine hydrochloride is an essential amino acid for humans with various benefits including treating herpes, increasing calcium absorption, reducing diabetes-related illnesses and improving gut health.
    L-Lysine-<sup>15</sup>N<sub>2</sub> hydrochloride
  • HY-163318
    NS2B/NS3-IN-8
    Inhibitor ≥98.0%
    NS2B/NS3-IN-8 (compound MH1) is a Zika virus NS2B-NS3 protease inhibitor.
    NS2B/NS3-IN-8
  • HY-14654S1
    Aspirin-d4
    Inhibitor 98.08%
    Aspirin-d4 is the deuterium labeled Aspirin. Aspirin is a non-selective and irreversible inhibitor of COX-1 and COX-2 with IC50s of 5 and 210 μg/mL[1][2].
    Aspirin-d<sub>4</sub>
  • HY-112254
    ZINC03129319
    Inhibitor 98.50%
    ZINC03129319 is a dengue virus (DENV) NS2B-NS3 protease inhibitor extracted from patent US20150141521A1, has inhibition constants (Ki1) of 92 μM and Ki3 of 20 μM.
    ZINC03129319
  • HY-162485
    DV-B-120
    Inhibitor 98.49%
    DV-B-120 is a competitive inhibitor for dengue virus (DENV) with IC50s of 5.35, 7.39, 10.49 and 8.58 μM, for DENV-1, DENV-2, DENV-3 and DENV-4, respectively, by inhibiting NS2B-NS3 protease. DV-B-120 exhibits antiviral activity through inhibition of DENV replication.
    DV-B-120
  • HY-136259
    ML188
    Inhibitor 99.87%
    ML188, a first in class probe, is a selective non-covalent SARS-CoV 3CLpro inhibitor with an IC50 of 1.5 μM. Antiviral activity.
    ML188
  • HY-P5312A
    Abz-Gly-Leu-Lys-Arg-Gly-Gly-3-(NO2)Tyr acetate
    99.94%
    Abz-Gly-Leu-Lys-Arg-Gly-Gly-3-(NO2)Tyr acetate is the acetate salt form of Abz-Gly-Leu-Lys-Arg-Gly-Gly-3-(NO2)Tyr. Abz-Gly-Leu-Lys-Arg-Gly-Gly-3-(NO2)Tyr acetate is the substrate for WNV NS2B NS3 protease, which is utilized for the development of WNV protease substrate peptide selective inhibitor.
    Abz-Gly-Leu-Lys-Arg-Gly-Gly-3-(NO2)Tyr acetate
  • HY-N0470S4
    L-Lysine-d8 hydrochloride
    Inhibitor 99.88%
    L-Lysine-d8 (hydrochloride) is the deuterium labeled L-Lysine hydrochloride. L-lysine hydrochloride is an essential amino acid for humans with various benefits including treating herpes, increasing calcium absorption, reducing diabetes-related illnesses and improving gut health.
    L-Lysine-d<sub>8</sub> hydrochloride
  • HY-N0002R
    (-)-Epicatechin gallate (Standard)
    Inhibitor
    (-)-Epicatechin gallate (Standard) is the analytical standard of (-)-Epicatechin gallate. This product is intended for research and analytical applications. (-)-Epicatechin gallate (Epicatechin gallate) inhibits cyclooxygenase-1 (COX-1) with an IC50 of 7.5 μM.
    (-)-Epicatechin gallate (Standard)
  • HY-N0469R
    L-Lysine (Standard)
    Inhibitor
    L-Lysine (Standard) is the analytical standard of L-Lysine. This product is intended for research and analytical applications. L-lysine is an essential amino acid for humans with orally activity. L-lysine can inhibit the occurrence of HSV infections and is used in herpes research. L-lysine increases calcium absorption, reduces diabetes-related diseases, improves gut health, and alleviates pancreatic inflammation. L-lysine can be used in research on metabolism, infection, and inflammation. IC50 & Target:L-lysine (150 mg/kg) promotes, but not initiates, bladder cancer. The administration of L-lysine to rats submitted to colovesical cystoplasty accelerates the development of transitional metaplasia of the intestinal epithelium.
    L-lysine (10 mg/kg) treatment attenuates pancreatic tissue injury induced by L-arginine by inhibiting the release of the inflammatory cytokine IL-6 and enhance antioxidant activity. In Vivo:L-lysine (10?mg/kg, p.o., pre-treated or post-treated, administration duration 15 days) treatment attenuates pancreatic tissue injury induced by L-arginine by inhibiting the release of the inflammatory cytokine IL-6 and enhance antioxidant activity in acute pancreatitis mice model. L-lysine (5 or 10?mg/kg, p.o., 45 days) ameliorates sepsis-induced acute lung injury in a lipopolysaccharide (HY-D1056)-induced mouse model.
    L-Lysine (Standard)
Cat. No. Product Name / Synonyms Application Reactivity