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-N12697A
    Polycarpine hydrochloride
    		Inhibitor
    Polycarpine hydrochloride (1a) is a broad-spectrum Mpro inhibitor (IC50 = 30 nM) that can be isolated from the Polycarpa aurata and also serves as an anti-coronaviral agent. Polycarpine hydrochloride possesses antiviral and antifungal activities, with IC50 values of 30.0 nM and 0.12 μM against SARS-CoV-2 Mpro and PEDV Mpro, respectively.
    Polycarpine hydrochloride
  • HY-N15365
    Antcin B
    		Inhibitor
    Antcin B is a SARS-CoV-2 3-chymotrypsin-like protease (3CL Pro) inhibitor. Antcin B binds to multiple key amino acid residues of 3CL Pro(such as Leu141, Asn142, Glu166, His163, etc.) through hydrogen bonds, salt bridges, and hydrophobic interactions, thereby inhibiting the activity of 3CL Pro, blocking the cleavage process of viral polyproteins, and suppressing the replication of the SARS-CoV-2 virus in host cells. Antcin B is promising for research of COVID-19.
    Antcin B
  • HY-146957
    ZIKV-IN-1
    		Inhibitor
    ZIKV-IN-1 is a potent zika virus inhibitor with an EC50 of 2.8 μM and EC90 of 6.8 μM. ZIKV-IN-1 shows anti-ZIKV activity with low cytotoxicity. ZIKV-IN-1 shows a strong affinity to ZIKV RdRp domain. ZIKV-IN-1 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    ZIKV-IN-1
  • HY-B1290S2
    2-Phenylethanol-d5
    2-Phenylethanol-d5 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>5</sub>
  • HY-151446
    ZIKV-IN-3
    		Inhibitor
    ZIKV-IN-3 (compound 5a), an andrographolide derivatives, is a potent ZIKV NS5 methyl transferase (MTase) inhibitor with an IC50 value of 18.34 μM. ZIKV-IN-3 inhibits ZIKV replication and infection. ZIKV-IN-3 can be used in research of Zika virus (ZIKV).
    ZIKV-IN-3
  • HY-172553
    AS-0017445
    		Inhibitor
    AS-0017445 is an inhibitor targeting the main protease of both the current coronavirus and the virus that caused the Middle East Respiratory Syndrome (MERS) outbreak. AS-0017445 inhibits the viral protein processing in host cells and thus prevents viral replication.
    AS-0017445
  • HY-13447
    PF-429242
    		Inhibitor
    PF429242 is a reversible and competitive SREBP site 1 protease (S1P) inhibitor with an IC50 of 175 nM.
    PF-429242
  • 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-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-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
    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
    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-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