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

Virus Protease

Virus Protease

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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-G0021S1
    N-Desmethylclozapine-d8 hydrochloride
    		Inhibitor 99.74%
    N-Desmethylclozapine-d8 (hydrochloride) is the deuterium labeled N-Desmethylclozapine hydrochloride. N-Desmethylclozapine hydrochloride is a major active metabolite of the atypical antipsychotic agent Clozapine. N-Desmethylclozapine hydrochloride is a potent, allosteric and partial M1 receptors agonist (EC50=115 nM) and is able to potentiate hippocampal N-methyl-d-aspartate (NMDA) receptor currents through M1 receptor activation. N-Desmethylclozapine hydrochloride is also a δ-opioid agonist[1][2][3].
    N-Desmethylclozapine-d<sub>8</sub> hydrochloride
  • HY-172760
    CIM-834
    		Inhibitor
    CIM-834 is an orally active and selective inhibitor targeting the coronavirus membrane protein (M protein), which potently blocks viral assembly against SARS-CoV-2 and SARS-CoV. CIM-834 binds to the short form of the M protein (Mshort) in a non-covalent manner, stabilizing Mshort and preventing its conformational switch to the long form (Mlong) required for virion assembly, thereby inhibiting viral particle formation. CIM-834 is promising for research of COVID-19 and other coronavirus infections.
    CIM-834
  • HY-162790
    SARS-CoV-2-IN-95
    		Inhibitor
    SARS-CoV-2-IN-95 (Compound 10) is an inhibitor for SARS-CoV-2 PLpro with an IC50 of 0.39 μM. SARS-CoV-2-IN-95 exhibits antiviral activity in mouse SARS-CoV-2-infected model.
    SARS-CoV-2-IN-95
  • HY-B1290S1
    2-Phenylethanol-d9
    2-Phenylethanol-d9 is the deuterium labeled 2-Phenylethanol[1]. 2-Phenylethanol (Phenethyl alcohol), extracted from rose, carnation, hyacinth, Aleppo pine, orange blossom and other organisms, is a colourless liquid. It has a pleasant floral odor and also an autoantibiotic produced by the fungus Candida albicans[2]. It is used as an additive in cigarettes and also used as a preservative in soaps due to its stability in basic conditions.
    2-Phenylethanol-d<sub>9</sub>
  • HY-161789
    PROTAC SARS-CoV-2 Mpro degrader-3
    		Inhibitor
    PROTAC SARS-CoV-2 Mpro degrader-3 (Compound P2) exhibits antiviral activity through the degradation of the main protease (Mpro) of human coronaviruses (HCoVs) (DC50=27 μM). PROTAC SARS-CoV-2 Mpro degrader-3 inhibits the viral replication, with EC50 of 4.6 μM, 4.6 μM, and 0.71 μM, for human coronaviruses HCoV-229E, HCoV-OC43 and SARS-CoV-2, respectively. (Pink: ligand for target protein Mpro ligand 2 (HY-161791); Black: linker (HY-161792); Blue: ligand for E3 ligase (S,R,S)-AHPC (HY-125845)) .
    PROTAC SARS-CoV-2 Mpro degrader-3
  • HY-136575
    4-Hydroxy-2-methylbenzenesulfonic acid ammonium
    		Inhibitor
    4-Hydroxy-2-methylbenzenesulfonic acid ammonium is an impurity of Policresulen. Policresulen is a potent NS2B/NS3 protease inhibitor with an IC50 of 0.48 μg/mL. Policresulen effectively inhibits the replication of DENV2 virus in BHK-21 cells with an IC50 of 4.99 μg/mL. Policresulen acted as a competitive inhibitor of the protease, and slightly affected the protease stability.
    4-Hydroxy-2-methylbenzenesulfonic acid ammonium
  • HY-149263
    HAA-09
    		Inhibitor
    HAA-09 is an orally active and potent anti-influenza agent, targeting the influenza PB2_cap binding domain. HAA-09 displays potent anti-influenza A virus activity, with an EC50 of 0.03 μM. HAA-09 shows polymerase inhibition, with an IC50 of 0.06±0.004 μM. HAA-09 blocks virus replication without causing obvious cytotoxicity.
    HAA-09
  • HY-144740
    NS2B/NS3-IN-5
    		Inhibitor
    NS2B/NS3-IN-5 (Compound 25b) is an allosteric DENV2 and ZIKV NS2B/NS3 protease inhibitor with IC50 values of 0.67 µM and 4.38 µM against ZIKV and DENV2 NS2B/NS3 proteases, respectively.
    NS2B/NS3-IN-5
  • HY-170309
    NZ-804
    		Inhibitor
    NZ-804 is an orally active inhibitor for SARS-CoV-2 main protease Mpro with an IC50 of 8.9 nM. NZ-804 inhibits the SARS-CoV-2 replication in HeLa-hACE2 cell with an EC50 of 14 nM. NZ-804 exhibits board-spectrum antiviral activity aganst multiple CoVs. NZ-804 diminishes virus replication in mouse and hamster model.
    NZ-804
  • HY-168916
    Jun13296
    		Inhibitor
    Jun13296 is an orally active quinoline SARS-CoV-2 papain-like protease inhibitor (IC50 = 0.13  µM, Ki  = 8.8  nM). Jun13296 exhibits potent inhibition against SARS-CoV-2 variants and Nirmatrelvir (HY-138687)-resistant mutants. Jun13296 improves lung viral titers, and prevents lung tissue damage in a SARS-CoV-2 infection model.
    Jun13296
  • HY-169419
    SARS-CoV-2-IN-108
    SARS-CoV-2-IN-108 (Compound 29) is an inhibitor for SARSCoV-2 papain-like protease with an IC50 of 0.14 µM. SARS-CoV-2-IN-108 inhibits the virus replication with an EC50 of 0.21 µM.
    SARS-CoV-2-IN-108
  • HY-N1739R
    Tectoquinone (Standard)
    		Inhibitor
    Tectoquinone (Standard) is the analytical standard of Tectoquinone. This product is intended for research and analytical applications. Tectoquinone (2-Methylanthraquinone) is a SARSCoV-2 main protease inhibitor against COVID-19. Tectoquinone exhibits strong mosquito larvicidal activity with the LC50 values of 3.3 and 5.4 μg/ml against A. aegypti and A. albopictus in 24 h, respectively.
    Tectoquinone (Standard)
  • HY-N0193S
    Artesunate-d3
    		Inhibitor
    Artesunate-d3 is the deuterium labeled Artesunate. Artesunate is an inhibitor of both STAT-3 and exported protein 1 (EXP1).
    Artesunate-d<sub>3</sub>
  • HY-W760546
    SARS-CoV-2 3CLpro-IN-15
    		Inhibitor
    SARS-CoV-2 3CLpro-IN-15 (compound a) is a beta-nitrostyrene coronavirus SARS-CoV-2 inhibitor that targets the SARS-CoV-2 3CL protease (3CLpro). SARS-CoV-2 3CLpro-IN-15 inhibits viral replication and transcription and plays a key role in the discovery of anti-COVID-19 lead compounds.
    SARS-CoV-2 3CLpro-IN-15
  • HY-169003
    STT3A/B-IN-1
    		Inhibitor
    STT3A/B-IN-1 is an orally active STT3A/B inhibitor with antiviral activity. STT3A/B-IN-1 upregulates DERL3 gene expression levels. STT3A/B-IN-1 is promising for research of viral diseases, including cancer and neurodegenerative disorders.
    STT3A/B-IN-1
  • HY-P10802
    ER-DRI
    		Inhibitor
    ER-DRI is a potent peptide inhibitor that tagets EV-A71. ER-DRI directly bounds to 3A and specifically abrogates viral suppressor of RNAi activity, which unlocked the antiviral RNAi response that is suppressed by 3A. ER-DRI also potently inhibits another enterovirus, Coxsackievirus-A16, dependently of RNAi.
    ER-DRI
  • HY-N0693R
    Schisandrin A (Standard)
    		Inhibitor
    Schisandrin A (Standard) is the analytical standard of Schisandrin A. This product is intended for research and analytical applications. Schisandrin A inhibits CYP3A activity with an IC50 of 6.60 μM and Ki of 5.83 μM, respectively.
    Schisandrin A (Standard)
  • HY-169410
    SARS-CoV-2 3CLpro-IN-29
    		Inhibitor
    3CLPro-IN-3 (Compound A36) is an inhibitor for SARS-CoV-2 3CLpro with IC50 of 51.3 nM. 3CLPro-IN-3 exhibits antiviral activity against human coronavirus 229E, OC43 and mouse hepatitis virus MHV.
    SARS-CoV-2 3CLpro-IN-29
  • HY-14654C
    Aspirin calcium
    		Inhibitor
    Aspirin calcium is an orally active, potent and irreversible inhibitor of cyclooxygenase COX-1 and COX-2, with IC50 values of 5 and 210 μg/mL, respectively. Aspirin calcium induces apoptosis. Aspirin calcium inhibits the activation of NF-κB. Aspirin calcium also inhibits platelet prostaglandin synthetase, and can prevent coronary artery and cerebrovascular thrombosis.
    Aspirin calcium
  • HY-161352
    NPI52
    		Inhibitor
    NPI52 (Compound E1) is a foot-and-mouth disease virus 3C protease (FMDV 3Cpro) inhibitor, with IC50 values of 0.05 and 0.11 µM in FRET and cell-based assay, respectively.
    NPI52
Cat. No. Product Name / Synonyms Application Reactivity