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-173305
    Mpro/PLPro-IN-2
    		Inhibitor
    Mpro/PLPro-IN-2 (Compound 22l) is a non-covalent competitive dual inhibitor of the papain-like protease and main protease of SARS-CoV-2, with a Ki of 0.2 μM for the papain-like protease and a Ki of 1.1 μM for the main protease. Mpro/PLPro-IN-2 can be used in the research field of anti-SARS-CoV-2.
    Mpro/PLPro-IN-2
  • HY-175712
    SARS-CoV-2 Mpro-IN-47
    		Inhibitor
    SARS-CoV-2 Mpro-IN-47 is an orally active SARS-CoV-2 Mpro reversible covalent Inhibitor. SARS-CoV-2 Mpro-IN-47 shows potent antiviral activity against several clinical variants of SARS-CoV-2. SARS-CoV-2 Mpro-IN-47 can be used for the research of infection, such as SARS-CoV-2.
    SARS-CoV-2 Mpro-IN-47
  • HY-N1778AR
    (E)-3,4-Dimethoxycinnamic acid (Standard)
    		Inhibitor
    (E)-3,4-Dimethoxycinnamic acid is the less active isomer of 3,4-Dimethoxycinnamic acid. 3,4-Dimethoxycinnamic acid exerts anti-apoptotic effects on L-02 cells via the ROS-mediated signaling pathway. Anti-apoptotic effects.
    (E)-3,4-Dimethoxycinnamic acid (Standard)
  • HY-173199
    PRRSV-IN-1
    		Inhibitor
    PRRSV-IN-1 (Compound 4s) is a nsp4 protease inhibitor targeting PRRSV, exhibiting an EC50 of 0.45 μM against PRRSV. It binds to the nsp4 protease with a Kd value of 29.24 pM and inhibits nsp4 protease activity with an IC50 of 80.36 pM. PRRSV-IN-1 can be used for research in the field of antiviral infections.
    PRRSV-IN-1
  • HY-W614623
    (S)-ML188
    		Inhibitor
    (S)-ML188 is a SARS-CoV 3-chymotrypsin-like protease (3CLpro) inhibitor (IC50: 1.5 μM). (S)-ML188 has antiviral activity with an EC50 value of 12.9 μM against SARS-CoV. (S)-ML188 inhibits the activity of 3CLpro via non-covalent binding and can be used in the study of SARS-CoV.
    (S)-ML188
  • HY-13428R
    Tubacin (Standard)
    		Inhibitor
    Tubacin (Standard) is the analytical standard of Tubacin. This product is intended for research and analytical applications. Tubacin is a potent and selective inhibitor of HDAC6, with an IC50 value of 4 nM and approximately 350-fold selectivity over HDAC1. Tubacin also inhibits metallo-β-lactamase domain-containing protein 2 (MBLAC2).
    Tubacin (Standard)
  • HY-158763
    MPI8
    		Inhibitor
    MPI8 (TG0205221) is an inhibitor of the major protease of SARS-CoV-2 (MPro) with high antiviral activity. MPI8 exerts its antiviral effect by dual and selective inhibition of SARS-CoV-2 MPro and host cell cysteine protease L (cathepsin L). This dual inhibition enhanced the overall antiviral potency and effect of MPI8. MPI8 can be used in clinical studies of COVID-19.
    MPI8
  • HY-174233
    PROTAC SARS-CoV-2 Degrader-1
    		Degrader
    PROTAC SARS-CoV-2 Degrader-1 (Compound LLP019) is a SARS-CoV-2 MPro PROTAC degrader with a DC50 value of 4.7 μM. PROTAC SARS-CoV-2 Degrader-1 induces MPro ubiquitination and proteasomal degradation to inhibit SARS-CoV-2 replication. PROTAC SARS-CoV-2 Degrader-1 is promising for research of COVID-19 and related coronavirus infections. (Pink: DH03 (HY-32717); Black: linker (HY-42149); Blue: Thalidomide-4-O-CH2-COO(t-Bu) (HY-42771).
    PROTAC SARS-CoV-2 Degrader-1
  • HY-N0469A
    L-Lysine (sulfite)
    		Inhibitor
    L-lysine sulfite is an essential amino acid for humans, offers numerous benefits and can be used in herpes research. Additionally, L-lysine sulfite enhances calcium absorption, reduces diabetes-related complications, improves gut health, and alleviates pancreatitis inflammation.
    L-Lysine (sulfite)
  • HY-14909R
    Bardoxolone (Standard)
    		Inhibitor
    Bardoxolone (Standard) is the analytical standard of Bardoxolone (HY-14909). This product is intended for research and analytical applications. Bardoxolone is an orally active activator of nuclear regulatory factor (NRf-2) and an inhibitor of SARS-CoV-2 3CL protease. Bardoxolone inhibits SARS-CoV-2 3CL protease with an EC50 value of 0.43 μM in vero cells. Bardoxolone also inhibits necroptosis in HT-29 cells with an EC50 value of 1.30 μM by blocking necrosome formation through inhibiting phosphorylation of RIPK1 and RIPK3. Bardoxolone can be used in research on COVID-19, TNF-induced systemic inflammatory response syndrome (SIRS), and cerebral ischemia-reperfusion injury.
    Bardoxolone (Standard)
  • HY-176229
    Mpro/Cathepsin L-IN-2
    		Inhibitor
    Mpro/Cathepsin L-IN-2 (Compound 1) is a dual irreversible inhibitor of SARS-CoV-2 main protease (Mpro, pIC50=8.61) and human cathepsin L (hCTSL, pIC50=7.64). Mpro/Cathepsin L-IN-2 is promising for research of COVID-19 and other coronavirus infections.
    Mpro/Cathepsin L-IN-2
  • HY-12396R
    Aminothiazole (Standard)
    		Inhibitor
    Aminothiazole (Standard) is the analytical standard of Aminothiazole. This product is intended for research and analytical applications. 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 (Standard)
  • HY-158935
    Dihydro K22
    		Inhibitor
    Dihydro K22 is a derivative of the antiviral agent K22 (HY-122668).
    Dihydro K22
  • HY-N0288R
    Lycorine (Standard)
    		Inhibitor
    Lycorine (Standard) is the analytical standard of Lycorine. This product is intended for research and analytical applications. Lycorine is a natural alkaloid extracted from the Amaryllidaceae plant. Lycorine is a potent and orally active SCAP inhibitor with a Kd value 15.24 nM. Lycorine downregulates the SCAP protein level without changing its transcription. Lycorine is also a melanoma vasculogenic inhibitor. Lycorine can be used for the study of prostate cancer and metabolic diseases.
    Lycorine (Standard)
  • HY-110061
    (2R,4R,6S)-Tubacin
    		Control
    (2R,4R,6S)-Tubacin is the 2R,4R,6S enantiomer of Tubacin (HY-13428). Tubacin is a potent and selective inhibitor of HDAC6, with an IC50 value of 4 nM and approximately 350-fold selectivity over HDAC1. Tubacin also inhibits metallo-β-lactamase domain-containing protein 2 (MBLAC2).
    (2R,4R,6S)-Tubacin
  • HY-N0354R
    Anthraquinone (Standard)
    		Inhibitor
    Anthraquinone (Standard) is the analytical standard of Anthraquinone. This product is intended for research and analytical applications. Anthraquinone is used as a precursor for dye formation.
    Anthraquinone (Standard)
  • HY-156007
    SARS-CoV-2 3CLpro-IN-21
    		Inhibitor
    SARS-CoV-2 3CLpro-IN-21 (Compound D6) irreversibly and covalently inhibits SARS-CoV-2 3CLpro with an IC50 of 0.03 μM. SARS-CoV-2 3CLpro-IN-21 also inhibits SARS-CoV-13CLpro with an IC50 of 0.12μM.
    SARS-CoV-2 3CLpro-IN-21
  • HY-169102
    CHIKV nsP2 protease-IN-1
    		Inhibitor
    CHIKV nsP2 protease-IN-1(compound J13) is an oral active non-structural protein 2 protease inhibitor with the EC50 of 0.39 μM aganist of CHIKV S27. CHIKV nsP2 protease-IN-1 can be used for study of Chikungunya virus.
    CHIKV nsP2 protease-IN-1
  • HY-178480
    SARS-CoV-2 Mpro-IN-49
    		Inhibitor
    SARS-CoV-2 Mpro-IN-49 (Compound 22e) is a potent SARS-CoV-2 main protease (Mpro) inhibitor (IC50=0.087 μM). SARS-CoV-2 Mpro-IN-49 is promising for research of SARS-CoV-2 and coronavirus.
    SARS-CoV-2 Mpro-IN-49
  • HY-B0182R
    Carmofur (Standard)
    		Inhibitor
    Carmofur (Standard) is the analytical standard of Carmofur. This product is intended for research and analytical applications. Carmofur (HCFU) is a rat recombinant acid ceramidase inhibitor with an IC50 of 29 nM. Carmofur is also a protease inhibitor of SARS-CoV-2 main protease (Mpro), fatty acid amide hydrolase (FAAH) and N-acylethanolamine acid amidase (NAAA). Carmofur has anti-cancer, anti-inflammatory and anti-virus activities, and can be used for the study of COVID-19 and acute lung injury (ALI).
    Carmofur (Standard)
Cat. No. Product Name / Synonyms Application Reactivity