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-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-168917
    9-AMN
    		Inhibitor
    9-AMN is the inhibitor for SARS-CoV-2 papain-like protease (SARS-CoV-2 PLpro), inhibits its deubiquitination (DUB) activity and protease activity with IC50 of 4.55 µM and 4.15 µM. 9-AMN inhibits the SARS-CoV variants Delta and Omicron replication in Calu-3 cell with IC50 of 1.04 µM and 2.35 µM.
    9-AMN
  • 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-B0448AR
    Phenytoin sodium (Standard)
    		Inhibitor
    Phenytoin (sodium) (Standard) is the analytical standard of Phenytoin (sodium). This product is intended for research and analytical applications. Phenytoin sodium (5,5-Diphenylhydantoin sodium salt) is a potent Voltage-gated Na+ channels (VGSCs) blocker. Phenytoin has antiepileptic activity and reduces breast tumour growth and metastasis in mice.
    Phenytoin sodium (Standard)
  • 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
  • HY-B0448S1
    Phenytoin-15N2,13C
    Phenytoin-15N2,13C is the 13C and 15N labeled Phenytoin. Phenytoin (5,5-Diphenylhydantoin) is a potent Voltage-gated Na+ channels (VGSCs) blocker. Phenytoin has antiepileptic activity and reduces breast tumour growth and metastasis in mice.
    Phenytoin-<sup>15</sup>N<sub>2</sub>,<sup>13</sup>C
  • HY-P10858
    UCI-1
    		Inhibitor
    UCI-1 is a SARS-CoV-2 main protease (Mpro) cyclic peptide inhibitor with an IC50 of 160 μM. UCI-1 shows no obvious cytotoxicity at the concentration of inhibiting Mpro. UCI-1 can be used in the study of anti-COVID-19 drugs.
    UCI-1
  • HY-100701
    Dutacatib
    		Inhibitor
    Dutacatib is inhibitor for SARS-CoV-2 3CLpro and cathepsin K, which exhibits antiviral activity and ameliorates the cancer-induced bone diseases.
    Dutacatib
  • HY-156008
    SARS-CoV-2-IN-58
    		Inhibitor
    SARS-CoV-2-IN-58 (Compound 21H) is an antiviral agent against SARS-CoV-2 (EC50: 18 μM). SARS-CoV-2-IN-58 inhibits SARS-CoV-2 Mpro with an IC50 of 0.35 μM.
    SARS-CoV-2-IN-58
  • HY-151251
    CYP2C9/CYP2C19-IN-1
    		Inhibitor
    CYP2C9/CYP2C19-IN-1 (compound 22d) is a potent CYP2C9/CYP2C19 inhibitor, possessing no hepatotoxicity and ames toxicity. CYP2C9/CYP2C19-IN-1 can be used in study of anti-ZIKV.
    CYP2C9/CYP2C19-IN-1
  • HY-151447
    ZIKV-IN-4
    		Inhibitor
    ZIKV-IN-4 (compound 5b) is a low-cytotoxicity and acid-stable anti-ZIKV agent (EC50=3.49 μM). ZIKV-IN-4 effectively inhibits the activity of ZIKV NS5 MTase.
    ZIKV-IN-4
  • HY-N0470R
    L-Lysine hydrochloride (Standard)
    		Inhibitor
    L-Lysine hydrochloride (Standard) is the analytical standard of L-Lysine hydrochloride. This product is intended for research and analytical applications. 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 hydrochloride (Standard)
  • HY-169974
    SARS-CoV-2-IN-107
    		Inhibitor
    SARS-CoV-2-IN-107 (Compound A7) is the inhibitor for SARS-CoV-2 3CLpro with an IC50 of 261.3 nM. SARS-CoV-2-IN-107 inhibits the SARS-CoV-2 replication with an EC50 of 11.7 μM. SARS-CoV-2-IN-107 exhibits anti-inflammatory activity with a NO inhibition rate of 68.6% in LPS (HY-D1056)-stimulated RAW264.7 macrophages.
    SARS-CoV-2-IN-107
  • HY-168050
    nsP2 Protease-IN-1
    		Inhibitor
    nsP2 Protease-IN-1 is a potent irreversible covalent inhibitor of Chikungunya (CHIKV) nsP2 cysteine protease with an IC50 value of 60 nM. nsP2 Protease-IN-1 demonstrates potent antialphavirus activity, inhibiting CHIKV and VEEV replication with EC50 = 0.01 and 0.3 µM, respectively.
    nsP2 Protease-IN-1
  • HY-168047
    EBOV-IN-10
    		Inhibitor
    EBOV-IN-10 is an orally active Ebola virus (EBOV) inhibitor with an EC50 value of 0.19 μM.
    EBOV-IN-10
  • HY-162022
    BTA-188
    		Inhibitor
    BTA-188, a pyridazinyl oxime ether, is an orally active, potent inhibitor of rhinoviruses (HRV) and enterovirus (EV) 71 in vitro. BTA-188 inhibits HRV-2 replication with an IC50 of 0.8 nM and an IC90 of 11 nM. BTA-188 inhibits enterovirus with an IC50 of 82 and an IC90 of 109 nM. BTA-188 is a potential chemotherapeutic agent for infections caused by the viruses in the Picornaviridae.
    BTA-188
  • HY-176440
    BP-198
    		Degrader
    BP-198 is an Mpro PROTAC degrader. BP-198 promotes the ubiquitination and degradation of Mpro. BP-198 has antiviral effects against SARS-CoV-2 (IC50: 11.8 μM) and has stronger activity against drug-resistant viruses. (Pink: target protein ligand (HY-176442); blue: E3 ligase ligand (HY-176441); black: linker (HY-W457968); E3 ligase-linker conjugate (HY-176443)).
    BP-198
Cat. No. Product Name / Synonyms Application Reactivity