1. Signaling Pathways
  2. Immunology/Inflammation
  3. NO Synthase

NO Synthase

Nitric oxide synthases; NOS

Nitric oxide synthases (NOSs) are a family of enzymes catalyzing the production of nitric oxide (NO) from L-arginine. NO synthases catalyze the oxidation of L-arginine to NO and L-citrulline. Mammals contain three NOS isoforms: neuronal NOS (nNOS), inducible NOS (iNOS), and endothelial NOS (eNOS). NO produced from these different NOS isoforms is involved in a wide range of physiologic functions in the nervous, immune, and cardiovascular systems. Unregulated NO production can lead to pathologic conditions such as stroke, inflammation, and hypertension. Therefore, the control of NOS activity by isoform selective NOS inhibitors has great potential for therapeutic treatments of NO-related diseases.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-118160
    PPM-18
    Inhibitor
    PPM-18 (NSC 73233), a potent anti-inflammatory agent, inhibits nitric oxide synthase expression. PPM-18 is a potent inhibitor of iNOS expression by blocking the binding of NF-κB to promoter. PPM-18, an analog of Vitamin K, induces autophagy and apoptosis in bladder cancer cells through ROS and AMPK signaling pathways.
    PPM-18
  • HY-N11085
    Isophysalin A
    Inhibitor
    Isophysalin A is a physalin with alpha and beta unsaturated ketone components. Isophysalin A binds to GSH and targets multiple cysteine residues on IKKβ. Isophysalin A also inhibits inducible NO synthase (iNOS) and nitric oxide (NO) production, showing anti-inflammatory activity.
    Isophysalin A
  • HY-155551
    Anti-inflammatory agent 46
    Anti-inflammatory agent 46 (compound 7h) is an anti-inflammatory agent with nitric oxide (NO) inhibitory effect. Anti-inflammatory agent 46 binds to iNOS with low energies, inhibits swelling in mice (at dose of 10 mg/kg).
    Anti-inflammatory agent 46
  • HY-13571B
    Beclometasone dipropionate monohydrate
    Inhibitor
    Beclometasone dipropionate monohydrate, the proagent of Beclometasone, is an orally active and potent glucocorticoid recepter agonist. Beclometasone dipropionate monohydrate acts via a glucocorticoid receptor and suppresses inflammation and hyperproliferation. Beclometasone dipropionate monohydrate can be used for asthma .
    Beclometasone dipropionate monohydrate
  • HY-115927
    8A8
    8A8 is a potent proinflammatory factor NO inhibitor with an IC50 of 4.7 μM. 8A8 also significantly inhibits LPS-induced HaCat cell proliferation.
    8A8
  • HY-146161
    COX-2/NO-IN-1
    Inhibitor
    COX-2/NO-IN-1 is an orally active nitric oxide synthase (iNOS), COX-2 expression and NO (IC50 of 3.52 μM) inhibitor. COX-2/NO-IN-1 has anti-inflammatory effects.
    COX-2/NO-IN-1
  • HY-P3168
    Martentoxin
    Inhibitor
    Martentoxin, a 4,046 Da polypeptide toxin, is a large-conductance Ca2+-activated K+ (BKCa) channel inhibitor. Martentoxin attenuates NO release, inhibits iNOS activation and upregulates eNOS mRNA expression in HUVECs induced by TNF-α. Martentoxin can be used for vascular diseases research.
    Martentoxin
  • HY-N0591R
    Dehydrocostus Lactone (Standard)
    Inhibitor
    Dehydrocostus Lactone (Standard) ((-)-Dehydrocostus lactone (Standard)) is the analytical standard of Dehydrocostus Lactone (HY-N0591). This product is intended for research and analytical applications. Dehydrocostus Lactone is a natural sesquiterpene that can be isolated from Saussurea lappa. Dehydrocostus Lactone has multiple activities such as anti-inflammatory, antibacterial, anti-tumor, and immunomodulatory effects. Dehydrocostus Lactone has an MIC of 2 µg/mL against Mycobacterium tuberculosis. Dehydrocostus Lactone can also inhibit the killing activity of cytotoxic T lymphocytes and induce apoptosis in tumor cells.
    Dehydrocostus Lactone (Standard)
  • HY-N3848
    Ermanin
    Inhibitor
    Ermanin is a flavonoid isolated from Tanacetum microphyllum. Ermanin potently inhibits iNOS, COX-2 activities, and inhibits platelet aggregation. Ermanin has anti-inflammatory, anti-tuberculous and anti-viral/bacterial properties.
    Ermanin
  • HY-176402
    Dyrk1A-IN-13
    Inhibitor
    Dyrk1A-IN-13 (Compound 1) is a DYRK1A inhibitor (IC50: 41 nM). Dyrk1A-IN-13 reduces LPS-induced NO production and has antioxidant and anti-inflammatory activities. Dyrk1A-IN-13 can be used in the research of Alzheimer's disease, cancer and diabetes.
    Dyrk1A-IN-13
  • HY-155821
    Anti-inflammatory agent 55
    Inhibitor
    Anti-inflammatory agent 55 (compound 9j) is a derivative of Coixol and has anti-inflammatory activity. Anti-inflammatory agent 54 inhibits the NF-κB pathway and downregulates the expression of iNOS, TNF-α, IL-6 and IL-1β. Anti-inflammatory agent 54 inhibits LPS-induced nitric oxide (NO) production in RAW264.7 macrophages (IC50: 0.8 μM) and exerts in vivo anti-inflammatory activity in a mouse auricular edema model.
    Anti-inflammatory agent 55
  • HY-153056
    BNN3
    Activator 99.66%
    BNN3 is a caged nitric oxide (NO) donor. BNN3 is membrane-permeant and incorporated in the lipid membrane.
    BNN3
  • HY-N9896
    Anhydronotoptol
    Inhibitor
    Anhydronotoptol is a potent nitric oxide inhibitory coumarin. Anhydronotoptol inhibits NO production in RAW 264.7 cells induced by LPS with an IC50 value of 36.6 μM.
    Anhydronotoptol
  • HY-107320
    Amtolmetin guacil
    Activator 99.93%
    Amtolmetin guacil is an effective nonsteroidal anti-Inflammatory agent with pain-relieving effects. Amtolmetin guacil inhibits prostaglandin synthesis and cyclooxygenase (COX). Amtolmetin guacil can stimulate capsaicin receptors present on the gastrointestinal wall and also releases gastroprotective nitric oxide (NO). Amtolmetin guacil can be used to research knee osteoarthritis.
    Amtolmetin guacil
  • HY-156398
    Anti-inflammatory agent 60
    Inhibitor
    Anti-inflammatory agent 60(compound 21) inhibitsnitric oxide production, with anIC50value of 12.95 μM.Anti-inflammatory agent 60reducesiNOS,phosphorylated p65, andβ-cateninexpression in a concentration-dependent manner.
    Anti-inflammatory agent 60
  • HY-N15743
    Anti-Heart Failure Agent 2
    Inhibitor
    Anti-Heart Failure Agent 2 (Compound 1) is an anti-heart failure agent with anti-inflammatory activity found in processed Cornus officinalis. Anti-Heart Failure Agent 2 inhibits NO release in LPS-induced RAW264.7 cells. Anti-Heart Failure Agent 2 alleviates myocardial ischemia-reperfusion injury, reduces myocardial infarction size, and improves myocardial histopathological changes. Anti-Heart Failure Agent 2 is promising for research of heart failure.
    Anti-Heart Failure Agent 2
  • HY-P0132A
    YIGSR-Lys(N3)
    Inhibitor
    YIGSR-Lys(N3) is a peptide that can inhibit the tumour growth and metastasis of leukaemic cells. YIGSR blocks the cellular binding to laminin I via a 67-kDa laminin-binding protein, and inhibits shear-induced increase in eNOS expression of laminin cells. YIGSR-Lys(N3) is a click chemistry reagent, it contains an Azide group and can undergo copper-catalyzed azide-alkyne cycloaddition reaction (CuAAc) with molecules containing Alkyne groups. It can also undergo strain-promoted alkyne-azide cycloaddition (SPAAC) reactions with molecules containing DBCO or BCN groups.
    YIGSR-Lys(N3)
  • HY-N15513
    Harzianol M
    Inhibitor
    Harzianol M is found in Trichoderma sp. SCSIOW21. Harzianol M can inhibit the production of NO and exhibit anti-inflammatory activity.
    Harzianol M
  • HY-149523
    Anticancer agent 157
    Inhibitor
    Anticancer agent 157 (compound 15) is a NO inhibitor (IC50=0.62 μg/mL) with anti-inflammatory and anticancer activities. Anticancer agent 157 can bind to iNOS (inducible NO synthase) and caspase 8, causing nuclear fragmentation and chromatin condensation, inducing apoptosis. Anticancer agent 157 inhibits HT29 colon cancer cells (IC50=2.45 μg/mL), Hep-G2 liver cancer cells (IC50=3.25 μg/mL), and B16-F10 murine melanoma cells (IC50=3.84 μg/mL).
    Anticancer agent 157
  • HY-N1494
    (+)-14-Deoxy-ε-caesalpin
    Inhibitor
    (+)-14-Deoxy-ε-caesalpin (14-Deoxy-ε-caesalpin), a cassane diterpenoid, inhibits nitric oxide (NO) production release of RAW 264.7 cells stimulated by Lipopolysaccharide (LPS).
    (+)-14-Deoxy-ε-caesalpin
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