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-10411
    AZ960
    		Inhibitor
    AZ960 is a potent and specific inhibitor of the JAK2 kinase with a Ki of 0.45 nM.
    AZ960
  • HY-12928
    ML336
    		Inhibitor 99.65%
    ML336 is quinazolinone-based inhibitor against venezuelan equine encephalitis virus (VEEV), with IC50s of 32, 20, and 42 nM for VEEV TC-83 CPE , VEEV V3526 CPE, VEEV Wild Type CPE, respectively. ML336 potently inhibits a VEEV-induced cytopathic effect in three strains of the virus (TC-83, V3526, and wild type Trinidad donkey) in the low nanomolar range.
    ML336
  • HY-12396
    Aminothiazole
    		Inhibitor 99.82%
    Aminothiazole (2-Aminothiazole), a typical heterocyclic amine, is a precursor for the synthesis of biologically active molecules including sulfur agents, biocides, fungicides, antibiotics, dyes and chemical reaction accelerators.
    Aminothiazole
  • HY-156655A
    Olgotrelvir sodium
    		Inhibitor
    Olgotrelvir (STI-1558) sodium is an orally active dual inhibitor of coronavirus main protease (Mpro) and human cell cathepsin (Cathepsin L). Olgotrelvir sodium is readily converted to its active form, AC1115, in full blood and/or plasma. Olgotrelvir sodium can effectively inhibit both SARS-CoV-2 replication and entry into host cells.
    Olgotrelvir sodium
  • HY-144612
    NS2B/NS3-IN-2
    		Inhibitor 98.10%
    NS2B/NS3-IN-2 is a potent dengue virus (DENV) NS2B/NS3 covalent inhibitor with an IC50 of 6.0 nM and Ki of 0.66 µM. NS2B/NS3-IN-2 shows no cytotoxicity and markedly increases the cell survival rate.
    NS2B/NS3-IN-2
  • HY-N0469R
    L-Lysine (Standard)
    		Inhibitor
    L-Lysine (Standard) is the analytical standard of L-Lysine. This product is intended for research and analytical applications. L-lysine is an essential amino acid for humans with orally activity. L-lysine can inhibit the occurrence of HSV infections and is used in herpes research. L-lysine increases calcium absorption, reduces diabetes-related diseases, improves gut health, and alleviates pancreatic inflammation. L-lysine can be used in research on metabolism, infection, and inflammation. IC50 & Target:L-lysine (150 mg/kg) promotes, but not initiates, bladder cancer. The administration of L-lysine to rats submitted to colovesical cystoplasty accelerates the development of transitional metaplasia of the intestinal epithelium.
    L-lysine (10 mg/kg) treatment attenuates pancreatic tissue injury induced by L-arginine by inhibiting the release of the inflammatory cytokine IL-6 and enhance antioxidant activity. In Vivo:L-lysine (10?mg/kg, p.o., pre-treated or post-treated, administration duration 15 days) treatment attenuates pancreatic tissue injury induced by L-arginine by inhibiting the release of the inflammatory cytokine IL-6 and enhance antioxidant activity in acute pancreatitis mice model. L-lysine (5 or 10?mg/kg, p.o., 45 days) ameliorates sepsis-induced acute lung injury in a lipopolysaccharide (HY-D1056)-induced mouse model.
    L-Lysine (Standard)
  • HY-N0110B
    Palmatine hydroxide
    		Inhibitor 99.64%
    Palmatine hydroxide 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 hydroxide can also inhibit West Nile virus (WNV) NS2B-NS3 protease in an uncompetitive manner with an IC50 of 96 μM. Palmatine hydroxide shows anti-cancer, anti-oxidation, anti-inflammatory, neuroprotection, antibacterial, anti-viral activities.
    Palmatine hydroxide
  • HY-143216A
    Ensitrelvir fumarate
    		Inhibitor 99.94%
    Ensitrelvir (S-217622) fumarate is the first orally active non-covalent, non-peptidic, SARS-CoV-2 3CL protease inhibitor (IC50=13 nM).
    Ensitrelvir fumarate
  • HY-14654S
    Aspirin-d3
    		Inhibitor 99.84%
    Aspirin-d3 is the deuterium labeled Aspirin (HY-14654). Aspirin (Acetylsalicylic acid) 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 induces apoptosis. Aspirin inhibits the activation of NF-κB. Aspirin also inhibits platelet prostaglandin synthetase, and can prevent coronary artery and cerebrovascular thrombosis.
    Aspirin-d<sub>3</sub>
  • HY-132280
    Tirilazad
    		Inhibitor 98.11%
    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
  • HY-G0021
    N-Desmethylclozapine
    		Inhibitor 99.10%
    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
  • HY-172437
    Secutrelvir
    		Inhibitor 99.64%
    Secutrelvir is an oral SARS-CoV-2 3C-like protease (3CLpro) inhibitor and antiviral agent, with IC50 values of 0.655 nM and 0.697 nM against SARS-CoV-2 3CLpro, respectively. Secutrelvir forms a reversible covalent bond with the catalytic cysteine C145 of SARS-CoV-2 3CLpro, thereby inhibiting viral replication. Secutrelvir exhibits activity against multiple SARS-CoV-2 variants and can be used in research related to coronavirus disease 2019 (COVID-19).
    Secutrelvir
  • HY-161762
    RA-0002034
    		Inhibitor 99.48%
    RA-0002034 is a Chikungunya virus (CHIKV) nsP2 protease inhibitor with an IC50 of 58 nM. RA-0002034 covalently modifies the catalytic cysteine in a site-specific manner.
    RA-0002034
  • HY-114698
    Retro-2 cycl
    		Inhibitor 99.17%
    Retro-2 cycl (RN 1-001) is a retrograde transport inhibitor with antiviral activity. Retro-2 cycl (RN 1-001) inhibits JCPyV and HPV16 pseudoviruses, with an IC50 of 54 μM and 160 μM respectively.
    Retro-2 cycl
  • HY-100733
    4E2RCat
    		Inhibitor 98.0%
    4E2RCat is an inhibitor of eIF4E-eIF4G interaction with an IC50 of 13.5 μM.
    4E2RCat
  • HY-136466
    A2ti-2
    		Inhibitor 99.80%
    A2ti-2 is a selective and low-affinity annexin A2/S100A10 heterotetramer (A2t) inhibitor with an IC50 of 230 μM. A2ti-2 specifically disrupts the protein-protein interaction (PPI) between A2 and S100A10. A2ti-2 prevents human papillomavirus type 16 (HPV16) infection.
    A2ti-2
  • HY-157403
    Jun12682
    		Inhibitor 99.60%
    Jun12682 is an orally active SARS-CoV-2 papain-like protease (PLpro) inhibitor, with a Ki value of 37.7 nM and an EC50 value of 1.1 μM in the FlipGFP PLpro assay. Jun12682 has efficacy in hindering PLpro both deubiquitination and deISGylation, with Ki values of 63.5 and 38.5 nM, respectively. Jun12682 exhibits resistance in multiple PLpro mutant strains, and its enzymatic activity is comparable to that of the wild-type. Jun12682 can be used for the study of the SARS-CoV-2.
    Jun12682
  • HY-173521
    JNJ-9676
    		Inhibitor 99.74%
    JNJ-9676 is an orally active Coronavirus M protein inhibitor and selective Sarbecovirus inhibitor. JNJ-9676 binds to the M protein dimer and forces the protein into an alternative conformational state with a compound-induced binding pocket. JNJ-9676 demonstrates in vitro nanomolar antiviral activity against SARS-CoV-2, SARS-CoV and Sarbecovirus strains from bat and pangolin zoonotic origin.
    JNJ-9676
  • HY-N0184AR
    Dipotassium glycyrrhizinate (Standard)
    		Inhibitor
    Dipotassium glycyrrhizinate (Standard) is the analytical standard of Dipotassium glycyrrhizinate. This product is intended for research and analytical applications. Dipotassium glycyrrhizinate is a HMGB1 inhibitor, inhibits atopic dermatitis-related gene expression with anti-anti-inflammatory activity.
    Dipotassium glycyrrhizinate (Standard)
  • HY-N0886
    Aloin B
    		Inhibitor 99.87%
    Aloin B (Isobarbaloin) is an orally active SARS-CoV-2 papain-like protease (PLpro) inhibitor with an IC50 of 16.08 μM (hydrolytic activity) and 17.51 μM (deubiquitinase activity). Aloin B is metabolized by rat intestinal flora into aloe-emodin-9-anthrone to exert laxative effects. Aloin B inhibits TPA (HY-18739)-induced ear edema, putrescine elevation, and tumor promotion in mouse skin. Aloin B can be used in research related to anti-inflammation, tumor promotion inhibition, coronavirus disease 2019 (COVID-19) and constipation.
    Aloin B
Cat. No. Product Name / Synonyms Application Reactivity