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-N0470S8
    L-Lysine-13C6 hydrochloride
    L-Lysine-13C6 hydrochloride is the 13C labeled L-Lysine hydrochloride[1]. 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[2][3][4].
    L-Lysine-<sup>13</sup>C<sub>6</sub> hydrochloride
  • HY-B1290R
    2-Phenylethanol (Standard)
    		Inhibitor
    2-Phenylethanol (Standard) is the analytical standard of 2-Phenylethanol. This product is intended for research and analytical applications. 2-Phenylethanol (Phenethyl alcohol) is an aromatic alcohol with a rose-like odour. 2-Phenylethanol is a flavour and fragrance compound, and can be used as a preservative and anti-microbial agent. 2-Phenylethanol has antityrosinase and antimicrobial activities.
    2-Phenylethanol (Standard)
  • HY-153076
    Flaviviruses-IN-3
    		Inhibitor 98.93%
    Flaviviruses-IN-3 (compound 87) is a potent flaviviruse inhibitor. Flaviviruses-IN-3 reduces the WNV (West Nile virus) protease activity, with a inhibition of 54%.
    Flaviviruses-IN-3
  • HY-N0328R
    alpha-Mangostin (Standard)
    		Inhibitor
    alpha-Mangostin (Standard) is the analytical standard of alpha-Mangostin. This product is intended for research and analytical applications. alpha-Mangostin (α-Mangostin) is a dietary xanthone with broad biological activities, such as antioxidant, anti-allergic, antiviral, antibacterial, anti-inflammatory and anticancer effects. It is an inhibitor of mutant IDH1 (IDH1-R132H) with a Ki of 2.85 μM.
    alpha-Mangostin (Standard)
  • HY-150234
    LabMol-319
    		Inhibitor
    LabMol-319 is a potent zika virus (ZIKV) NS5 RdRp inhibitor with an IC50 of 1.6 μM. LabMol-319 is an antiviral agent.
    LabMol-319
  • HY-B0448S
    Phenytoin-d10
    		Inhibitor ≥98.0%
    Phenytoin-d10 is the deuterium 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[1][2].
    Phenytoin-d<sub>10</sub>
  • HY-N0110A
    Palmatine
    		Inhibitor
    Palmatine is an orally active and irreversible indoleamine 2,3-dioxygenase 1 (IDO-1) inhibitor with IC50s of 3 μM and 157μM against HEK 293-hIDO-1 and rhIDO-1, respectively. Palmatine can also inhibit West Nile virus (WNV) NS2B-NS3 protease in an uncompetitive manner with an IC50 of 96 μM. Palmatine shows anti-cancer, anti-oxidation, anti-inflammatory, neuroprotection, antibacterial, anti-viral activities.
    Palmatine
  • HY-135860
    SARS-CoV-2-IN-1
    		Inhibitor
    SARS-CoV-2-IN-1 is a potent Mpro inhibitor. SARS-CoV-2-IN-1 inhibits the purified recombinant SARS-CoV-2 Mpro, SARS-CoV Mpro and MERS-CoV Mpro with IC50s of 0.67, 0.90 and 0.58 μM, respectively.
    SARS-CoV-2-IN-1
  • HY-18234
    Leupeptin
    		Inhibitor
    Leupeptin is a broad-spectrum, membrane-permeable protease inhibitor. Leupeptin potently inhibits serine, cysteine and threonine proteases. Leupeptin inhibits Mpro (the main protease of SARS-CoV-2) and also has anti-inflammatory activity.
    Leupeptin
  • HY-14654A
    Aspirin lithium
    		Inhibitor
    Aspirin (Acetylsalicylic Acid) lithium 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 lithium induces apoptosis. Aspirin lithium inhibits the activation of NF-κB. Aspirin lithium also inhibits platelet prostaglandin synthetase, and can prevent coronary artery and cerebrovascular thrombosis.
    Aspirin lithium
  • HY-148957
    5-Bromo-2′-deoxy-2′-fluorouridine
    		Inhibitor
    5-Bromo-2′-deoxy-2′-fluorouridine (Example 1), a 5-halo analog, is potential as an antiviral agent.
    5-Bromo-2′-deoxy-2′-fluorouridine
  • HY-N0560R
    Oroxylin A (Standard)
    		Inhibitor
    Oroxylin A (Standard) is the analytical standard of Oroxylin A. This product is intended for research and analytical applications. Oroxylin A is an active flavonoid compound with strong anti-cancer effects. Oroxylin A inhibits the IL-6/STAT3 pathway and NF-κB signaling, inhibits cell proliferation and induces apoptosis. Oroxylin A inhibits colitis-related carcinogenesis.
    Oroxylin A (Standard)
  • HY-150600
    NS2B/NS3-IN-7
    		Inhibitor
    NS2B/NS3-IN-7 (compound 26) is a highly potent Zika virus NS2B-NS3 protease inhibitor with a Ki value of 2.33 nM. NS2B/NS3-IN-7 can reduce amounts of ZIKV-infected cells.
    NS2B/NS3-IN-7
  • HY-A0281S3
    4-Phenylbutyric acid-d2
    4-Phenylbutyric acid-d2 is the deuterium labeled 4-Phenylbutyric acid[1]. 4-Phenylbutyric acid (4-PBA) is an inhibitor of HDAC and endoplasmic reticulum (ER) stress, used in cancer and infection research.
    4-Phenylbutyric acid-d<sub>2</sub>
  • HY-N0469S
    L-Lysine-d3 hydrochloride
    		Inhibitor
    L-Lysine-d3 (hydrochloride) is the deuterium labeled L-Lysine. L-lysine is an essential amino acid[1][2] with important roles in connective tissues and carnitine synthesis, energy production, growth in children, and maintenance of immune functions[2].
    L-Lysine-d<sub>3</sub> hydrochloride
  • HY-120757
    LP-130
    		Inhibitor
    LP-130 is a statin-based inhibitor that is a universal inhibitor with nanomolar inhibitory activity against all tested retroviral proteases. Crystal structure studies of its binding to different retroviral proteases have shown that it can adapt to different active site regions to achieve inhibition.
    LP-130
  • HY-172214
    AB-343
    		Inhibitor
    AB-343 is a selective covalent inhibitor of SARS-CoV-2 Mpro, with an IC50 of 8 nM and a Ki of 2.8 nM. AB-343 can effectively inhibit the main proteases of SARS-CoV-2 and many other coronaviruses, and is also active against some resistant variants. AB-343 can be used in the research of treating coronavirus infection-related diseases.
    AB-343
  • HY-155379
    β-Herpesvirus protease-IN-1
    		Inhibitor
    β-Herpesvirus protease-IN-1 (compound 19) is a β-herpesvirus protease inhibitor with IC50s of 2.5 μM and 0.33 μM for HCMVPro and HHV6Pro, respectively.
    β-Herpesvirus protease-IN-1
  • HY-B0923R
    Danthron (Standard)
    		Inhibitor
    Danthron (Standard) is the analytical standard of Danthron. This product is intended for research and analytical applications. Danthron is a natural product extracted from the traditional Chinese medicine Salvia miltiorrhiza Bunge. Danthron functions in regulating glucose and lipid metabolism by activating AMPK.
    Danthron (Standard)
  • HY-N0763R
    Angelicin (Standard)
    		Inhibitor
    Angelicin (Standard) is the analytical standard of Angelicin. This product is intended for research and analytical applications. Angelicin is a natural tricyclic aromatic hydrocarbon compound that is structurally related to psoralen and has anti-cancer, anti-inflammatory, anti-viral and other activities. Cytotoxic, IC50: 49.56 μM; inhibits MHV-68, IC50: 5.39 μg/ml (28.95 μM).
    Angelicin (Standard)
Cat. No. Product Name / Synonyms Application Reactivity