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-161790
    Mpro ligand 1
    Mpro ligand 1 is the ligand for target protein for PROTAC SARS-CoV-2 Mpro degrader-3 (HY-161789). Mpro ligand 1 is the active form of Mpro ligand 2 (HY-161791).
    Mpro ligand 1
  • HY-144736
    NS2B/NS3-IN-4
    		Inhibitor
    NS2B/NS3-IN-4 (Compound 34e) is an allosteric DENV2 and ZIKV NS2B/NS3 protease inhibitor with IC50 values of 0.69 µM and 1.04 µM against DENV2 and ZIKV NS2B/NS3 proteases, respectively.
    NS2B/NS3-IN-4
  • HY-144742
    NS2B/NS3-IN-6
    		Inhibitor
    NS2B/NS3-IN-6 (Compound 1a) is an allosteric DENV and ZIKV NS2B/NS3 protease inhibitor with IC50 values of 2.23 µM and 25.2 µM against ZIKV and DENV proteases, respectively.
    NS2B/NS3-IN-6
  • HY-18234AR
    Leupeptin hemisulfate (Standard)
    		Inhibitor
    Leupeptin (hemisulfate) (Standard) is the analytical standard of Leupeptin (hemisulfate). This product is intended for research and analytical applications. 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[1][2][3].
    Leupeptin hemisulfate (Standard)
  • HY-172960
    SARS-CoV-2 Mpro-IN-44
    		Inhibitor
    SARS-CoV-2 Mpro-IN-44 (Compound 25) is a broad-spectrum coronavirus main protease (Mpro) inhibitor. SARS-CoV-2 Mpro-IN-44 has inhibitory activity against a variety of high-risk coronaviruses (including SARS-CoV-2 and PEDV, etc.) (IC50: < 0.6 μM). SARS-CoV-2 Mpro-IN-44 achieves broad-spectrum inhibition of coronaviruses by enhancing the interaction with the conserved sites of Mpro. SARS-CoV-2 Mpro-IN-44 can be used for anti-coronavirus drug development.
    SARS-CoV-2 Mpro-IN-44
  • HY-N0354S
    Anthraquinone-d8
    Anthraquinone-d8 is the deuterium labeled Anthraquinone[1]. Anthraquinone is used as a precursor for dye formation.
    Anthraquinone-d<sub>8</sub>
  • HY-P5312
    Abz-Gly-Leu-Lys-Arg-Gly-Gly-3-(NO2)Tyr
    		Inhibitor
    Abz-Nle-Lys-Arg-Arg-Ser-3-(NO2)Tyr is a WNV NS2B-NS3 protease substrate. Abz-Nle-Lys-Arg-Arg-Ser-3-(NO2)Tyr is used for WNV NS2B-NS3 protease substrate peptide selective inhibitor development.
    Abz-Gly-Leu-Lys-Arg-Gly-Gly-3-(NO2)Tyr
  • HY-161454
    Antiviral agent 54
    		Inhibitor
    Antiviral agent 54 (compound 33) is a broad-spectrum and orally active antiviral agent. Antiviral agent 54 shows antiviral activity for ZIKV, HCoV-OC43 and influenza A virus (IVA). Antiviral agent 54 decreases the ZIKV RNA and protein level.
    Antiviral agent 54
  • HY-P4209A
    Boc-GRR-AMC TFA
    Boc-GRR-AMC (TFA) is a tri-peptide Substrate. Boc-GRR-AMC can be used for a fluorogenic West Nile virus (WNV) substrate, profiling the substrate specificity for the NS2B-NS3 proteases or determining the pH optimum of LdMC activity.
    Boc-GRR-AMC TFA
  • HY-161791
    Mpro ligand 2
    Mpro ligand 2 (Compound 8) is the ligand for target protein, which can be used for synthesis of PROTAC SARS-CoV-2 Mpro degrader-3 (HY-161789).
    Mpro ligand 2
  • HY-171781
    FL-166
    		Inhibitor
    FL-166 is a SARS coronavirus main protease (Mpro) inhibitor (Ki: 40 nM). FL-166 exerts its inhibitory effect by targeting a cluster of serine residues near the active site of the protease. FL-166 can be used in the study of SARS-CoV.
    FL-166
  • HY-151900
    SARS-CoV-2 Mpro-IN-4
    		Inhibitor
    SARS-CoV-2 Mpro-IN-4 is a dual Inhibitor of Main Protease (MPro) and Cathepsin L (CatL), with IC50s of 900 nM and 60 nM respectively. SARS-CoV-2 Mpro-IN-4 has antiviral activity against SARS-CoV2. SARS-CoV-2 Mpro-IN-4 blocks SARS-CoV2 replication in hACE2 expressing A549 cells with IC50 value of 8.2 nM.
    SARS-CoV-2 Mpro-IN-4
  • HY-151581
    HCVcc-IN-1
    		Inhibitor
    HCVcc-IN-1 is a benzothiazole-2-thiophene S-glycoside derivative with low toxic and antiviral activity.
    HCVcc-IN-1
  • HY-145842
    Encephalitic alphavirus-IN-1
    		Inhibitor
    Encephalitic alphavirus-IN-1 has antiviral activity for VEEV and EEEV with EC50s of 0.24 μM and 0.16 μM, respectively. Encephalitic alphavirus-IN-1 has robust mouse plasma stability, and no obvious cytotoxicity.
    Encephalitic alphavirus-IN-1
  • HY-W012835S1
    4-Methylanisole-d3
    4-Methylanisole-d3 is the deuterium labeled 4-Methylanisole. 4-Methylanisole (4-Methoxytoluene) is food flavoring agent and can be naturally found in Ylang Ylang fragrance oil.
    4-Methylanisole-d<sub>3</sub>
  • HY-175344
    TMP1
    		Inhibitor
    TMP1 is an orally active bispecific inhibitor of M pro (IC50 = 312.5 nM)/TMPRSS2 (IC50 = 1.28 μM, KD = 10.10 μM). TMP1 exhibits broad protection against different SARS-CoV-2 variants in vitro. TMP1 cross-protects against highly pathogenic coronaviruses (SARS-CoV-1, SARS-CoV-2, and MERS-CoV) in vivo and effectively blocks the transmission of SARS-CoV-2. TMP1 can inhibit infection by SARS-CoV-2 escape mutants that are resistant to Nivolumab (HY-P9903). TMP1 can be used in coronavirus research.
    TMP1
  • HY-161244
    FGA145
    		Inhibitor
    FGA145 is a dual, selective inhibitor for Mpro and human Cathepsin L, with Kis of 3.71 μM, 9.82 μM and 53 nM, for Mal-Mpro, pET21-Mpro and Cathepsin L, respectively. FGA145 reveals a multitarget effects in the antiviral activity.
    FGA145
  • HY-149467
    JMX0254
    		Inhibitor
    JMX0254 is an orally active and potent inhibitor of the dengue virus NS4B protein. JMX0254’s EC50 for DENV-1, DENV-2, and DENV-3 are 0.78 µM, 0.16 µM, and 0.035 µM, respectively. JMX0254 can be used for research on viral infections.
    JMX0254
  • HY-N0470S1
    L-Lysine-13C6,15N2,d9 dihydrochloride
    		Inhibitor
    L-Lysine-13C6,15N2,d9 (dihydrochloride) is the deuterium, 13C-, and 15-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>13</sup>C<sub>6</sub>,<sup>15</sup>N<sub>2</sub>,d<sub>9</sub> dihydrochloride
  • HY-P10871
    cTEV6-2
    		Inhibitor
    cTEV6-2 binds to the cysteine residue (C151) of tobacco etch virus protease (TEV protease), and covalently inhibits TEV protease with an IC50 of 81.7 nM.
    cTEV6-2
Cat. No. Product Name / Synonyms Application Reactivity