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

Virus Protease

Virus Protease

Related Products

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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-132280R
    Tirilazad (Standard)
    		Inhibitor
    Tirilazad (U 74006F free base) Standard is the analytical standard of Tirilazad (HY-132280). This product is intended for research and analytical applications. Tirilazad (U 74006F free base) is a neuroprotective agent. Tirilazad can also bind tightly to the main protease of the COVID-19 virus and exert anti-SARS-CoV-2 activity. Tirilazad scavenges hydroxyl and lipid peroxyl free radicals and maintains the levels of endogenous antioxidants. Tirilazad reduces cerebral infarct volume and improves neurobehavioral scores in animal models of focal ischemia. Tirilazad can be used in research related to ischemic stroke and subarachnoid hemorrhage.
    Tirilazad (Standard)
  • HY-181352
    SB-140
    		Inhibitor
    SB-140 is a selective, covalent PLpro inhibitor with an IC50 of ≤2.5 nM against SARS-CoV-2 PLpro. SB-140 has antiviral activity against SARS-CoV-2, MERS-CoV and SARS-CoV-1.
    SB-140
  • HY-N1992R
    Theaflavin 3,3'-digallate (Standard)
    		Inhibitor
    Theaflavin 3,3'-digallate (Standard) is the analytical standard of Theaflavin 3,3'-digallate. This product is intended for research and analytical applications. Theaflavin 3,3'-digallate (TF-3) is a potent Zika virus (ZIKV) protease inhibitor with an IC50 of 2.3 μM. Theaflavin 3,3'-digallat directly binds to ZIKVpro (Kd=8.86 μM) and inhibits ZIKV replication. Theaflavin 3,3'-digallat inhibits the activity of gp41 and NS2B-3 protease and has antiviral activity against HSV and HIV-1. Theaflavin 3,3'-digallate, the typical pigment in black tea, is a potent antitumor agent.
    Theaflavin 3,3'-digallate (Standard)
  • HY-N9664
    Crepidiaside B
    		Inhibitor
    Crepidiaside B is a plant-derived active component that can be found in Cichorium intybus. Crepidiaside B acts as a SARS-CoV-2 spike glycoprotein inhibitor and is used in research related to coronavirus disease 2019 (COVID-19).
    Crepidiaside B
  • HY-156655
    Olgotrelvir
    		Inhibitor
    Olgotrelvir (STI-1558) is an orally active dual inhibitor of coronavirus main protease (Mpro) and human cell cathepsin (Cathepsin L). Olgotrelvir is readily converted to its active form, AC1115, in full blood and/or plasma. Olgotrelvir can effectively inhibit both SARS-CoV-2 replication and entry into host cells.
    Olgotrelvir
  • HY-B1290S
    2-Phenylethanol-d4
    2-Phenylethanol-d4 is the deuterium labeled 2-Phenylethanol. 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. 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>4</sub>
  • HY-152082
    DENV-IN-8
    		Inhibitor
    DENV-IN-8 (Compound 5e) is a DENV2 inhibitor with an EC50 of 0.068 μM.
    DENV-IN-8
  • HY-169055
    SARS-CoV-2 Mpro-IN-25
    		Inhibitor
    SARS-CoV-2 Mpro-IN-25 (Compound 3a) is a SARS-CoV-2 protease inhibitor with an IC50 value of 0.26 μM. SARS-CoV-2 Mpro-IN-25 exhibits antiviral activity and can be used in pneumonia-related research.
    SARS-CoV-2 Mpro-IN-25
  • HY-137985
    Mer-NF5003F
    		Inhibitor
    Mer-NF5003F (Stachybotrydial; F 1839M), a sesquiterpene isolated from Stachybotrys, inhibits avian medulloblastoma virus (AMV) protease (IC50=7.8 μM). Mer-NF5003F inhibits sialyltransferase 6N (ST6N), ST3O, and ST3N (IC50=0.61, 6.7, and 10 μg/mL, respectively), and fucosyltransferase (IC50=11.3 μg/mL). Mer-NF5003F has in vitro activity against herpes simplex virus HSV-1 (IC50=4.32 μg/mL) and multidrug-resistant Plasmodium falciparum K1 strain (IC50=0.85 μg/mL).
    Mer-NF5003F
  • HY-181904
    SARS-CoV-2 Mpro ligand 2
    		Ligand
    SARS-CoV-2 Mpro ligand 2 (Compound 24) is a ligand for the target protein for PROTAC (SARS-CoV-2 Mpro). SARS-CoV-2 Mpro ligand 2 can be used to synthesize PROTAC SARS-CoV-2 Mpro degrader-8 (HY-181870).
    SARS-CoV-2 Mpro ligand 2
  • HY-127083
    Artecanin
    		Inhibitor
    Artecanin is a SARS-CoV-2 main protease (Mpro) inhibitor with predicted high gastrointestinal absorption and oral bioavailability, and no predicted hepatotoxicity, carcinogenicity, mutagenicity or cytotoxicity. Artecanin interacts with His41 and Cys145, the key amino acid residues in the active site of Mpro, blocks the cleavage and maturation of viral precursor proteins, and forms a stable complex with Mpro. Artecanin blocks the invasion of SARS-CoV-2. Artecanin is applicable to the research of COVID-19.
    Artecanin
  • HY-B0388S
    Probucol-13C3
    		Inhibitor
    Probucol-13C3 is the 13C-labeled Probucol. 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-<sup>13</sup>C<sub>3</sub>
  • HY-172965
    SARS-CoV-2 Mpro-IN-43
    SARS-CoV-2 Mpro-IN-43 (Compound 1) is a coronavirus main protease (Mpro) inhibitor (IC50: 72 μM). SARS-CoV-2 Mpro-IN-43 interacts with key residues in the active site of Mpro via non-covalent binding, exerting its anti-coronavirus effect. SARS-CoV-2 Mpro-IN-43 exhibits moderate to low cytotoxicity, with CC50 values of 13.24, 41.02, and 42.26 µM in HaCaT, HEK293T, and HepG2 cells, respectively. SARS-CoV-2 Mpro-IN-43 can be used in anti-SARS-CoV-2 research.
    SARS-CoV-2 Mpro-IN-43
  • HY-134309
    NSC 288387
    		Inhibitor 98.08%
    NSC 288387 is a pan-flavivirus MTase inhibitor. NSC 288387 binds to the SAM-binding pocket. NSC 288387 inhibits ZIKV with an IC50 of 0.2 μM. NSC 288387 also inhibits viral replication in cell culture.
    NSC 288387
  • HY-P10828
    MAPI
    		Inhibitor
    MAPI is a polypeptide irreversible 3C cysteine protease (SV3CP) inhibitor. MAPI inhibits SV3CP by covalently binding its C-terminal Michael-acceptor extension to the active site thiol of SV3CP Cys 139. MAPI is promising for research of noroviruses infection.
    MAPI
  • HY-P11302
    DABCYL-RAGGYIFS-(E-EDANS)-NH2
    		98.55%
    DABCYL-RAGGYIFS-(E-EDANS)-NH2, an octapeptide, is a FRET-based substrate peptide of CHIKV nsP2protease with highly sensitivity. DABCYL-RAGGYIFS-(E-EDANS)-NH2 can be cleaved by the active CHIKV nsP2protease, separating fluorophore and quencher and resulting in an increase of fluorescence signal. DABCYL-RAGGYIFS-(E-EDANS)-NH2 can used for the determination of CHIKV nsP2protease activity.
    DABCYL-RAGGYIFS-(E-EDANS)-NH2
  • HY-G0021R
    N-Desmethylclozapine (Standard)
    		Inhibitor
    N-Desmethylclozapine (Standard) is the analytical standard of N-Desmethylclozapine. This product is intended for research and analytical applications. N-Desmethylclozapine is a major active metabolite of the atypical antipsychotic agent Clozapine. N-Desmethylclozapine 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 is also a δ-opioid agonist.
    N-Desmethylclozapine (Standard)
  • HY-183266
    SR-A-174
    		Inhibitor
    SR-A-174 is a SARS-CoV-2 MPro inhibitor with an IC50 of 0.060 μM. SR-A-174 has limited cell permeability and exhibits low activity in cells expressing MPro-eGFP, with a cellular IC50 > 10 μM. SR-A-174 can be used in COVID-19-related research.
    SR-A-174
  • HY-184226
    ASAP-0031651
    		Inhibitor
    ASAP-0031651 is an orally active inhibitor of Zika virus NS2B-NS3 protease. ASAP-0031651 binds the active site of virus NS2B-NS3 protease to inhibit its function. ASAP-0031651 exerts antiviral activity against Zika virus. ASAP-0031651 can be used for the research of virus infection.
    ASAP-0031651
  • HY-151445
    ZIKV-IN-2
    		Inhibitor
    ZIKV-IN-2 (compound 3a) is a potent ZIKV NS5 methyl transferase (MTase) inhibitor with an IC50 value of 38.86 μM. ZIKV-IN-2 inhibits ZIKV replication and infection. ZIKV-IN-2 can be used in research of Zika virus (ZIKV).
    ZIKV-IN-2
Cat. No. Product Name / Synonyms Application Reactivity