2. Signaling Pathways
  3. Immunology/Inflammation
  4. NO Synthase
  5. iNOS Isoform

iNOS

iNOS, also known as NOS-2, is a 131 kDa mammalian protein composed of 1,153 amino acids, which are assembled into two major domains, a C-terminal reductase—containing a flavin mononucleotide (FMN) binding subdomain—and a N-terminal oxygenase.iNOS adopts a zinc-bridged, homodimeric quaternary structure that allows the enzyme to convert L-Arg to L-citrulline with the concomitant production of NO. This transformation is governed by an elaborate electron transport chain, involving the cofactors nicotinamide adenine dinucleotide phosphate (NADPH), flavin adenine dinucleotide (FAD), flavin mononucleotide (FMN), heme, and (6R)-5,6,7,8-tetrahydrobiopterin (H4B), which are essential for this reaction. This process is mediated by CaM, which binds in a hinge region between the oxygenase and reductase domains.

iNOS Related Products (74):

Cat. No. Product Name Effect Purity
  • HY-13571A
    Beclometasone dipropionate
    		Inhibitor 99.89%
    Beclometasone dipropionate, the proagent of Beclometasone, is an orally active and potent glucocorticoid recepter agonist. Beclometasone dipropionate acts via a glucocorticoid receptor and suppresses inflammation and hyperproliferation. Beclometasone dipropionate can be used for asthma .
  • HY-100986
    L-NIO dihydrochloride
    		Inhibitor
    L-NIO dihydrochloride is a potent, non-selective and NADPH-dependent nitric oxide synthase (NOS) inhibitor, with Kis of 1.7, 3.9, 3.9 μM for neuronal (nNOS), endothelial (eNOS), and inducible (iNOS), respectively. L-NIO dihydrochloride induces a consistentfocal ischemic infarctin rats.
  • HY-N0698
    Crocin II
    		Inhibitor 99.40%
    Crocin II is isolated from the fruit of Gardenia jasminoides with antioxidant, anticancer, and antidepressant activity. Crocin II inhibits NO production with an IC50 value of 31.1 μM. Crocin II suppresses the expressions of protein and m-RNA of iNOS and COX-2.
  • HY-N0268
    Irisflorentin
    		Inhibitor 99.76%
    Irisflorentin, a naturally occurring isoflavone, is an abundant active constituent in Belamcanda chinensis. Irisflorentin markedly reduces the transcriptional and translational levels of inducible nitric oxide synthase (iNOS) as well as the production of NO. Anti-inflammatory activity.
  • HY-N0041
    Ginsenoside Rb3
    		Inhibitor 99.12%
    Ginsenoside Rb3 is extracted from steamed Panax ginseng C. A. Meyer. Ginsenoside Rb3 exhibits inhibitory effect on TNFα-induced NF-κB transcriptional activity with an IC50 of 8.2 μM in 293T cell lines. Ginsenoside Rb3 also inhibits the induction of COX-2 and iNOS mRNA.
  • HY-118700
    2-Iminobiotin
    		Inhibitor 99.88%
    2-Iminobiotin (Guanidinobiotin) is a biotin (vitamin H or B7) analog. 2-Iminobiotin is a reversible nitric oxide synthases inhibitor with Kis of 21.8 and 37.5μM for murine iNOS and rat n-cNOS, respectively. 2-Iminobiotin superimposes on hypothermia protects human neuronal cells from hypoxia-induced cell damage.
  • HY-12119
    GW274150
    		Inhibitor ≥98.0%
    GW274150 is a potent, selective, orally active and NADPH-dependent inhibitor of human inducible nitric oxide synthase (iNOS) (IC50=2.19 μM; Kd=40 nM) and rat iNOS (ED50=1.15 μM). GW274150 also displays less potency for both humans or rats endothelial NOS (eNOS) and neuronal NOS (nNOS). GW274150 exerts a protective role in an acute model of lung injury inflammation.
  • HY-119720
    Neocryptotanshinone
    		Inhibitor 98.82%
    Neocryptotanshinone, a fatty diterpenoids from Salvia Miltiorrhiza, inhibits lipopolysaccharide-induced inflammation by suppression of NF-κB and iNOS signaling pathways.
  • HY-136341
    7,8-Dihydroneopterin
    		Activator 99.79%
    7,8-Dihydroneopterin, an inflammation marker, induces cellular apoptosis in astrocytes and neurons via enhancement of nitric oxide synthase (iNOS) expression. 7,8-Dihydroneopterin can be used in the research of neurodegenerative diseases.
  • HY-N7931
    Regaloside A
    		Inhibitor 99.76%
    Regaloside A, a phenylpropanoid, shows significant DPPH radical scavenging activity of 58.0% at 160 ppm. Regaloside A has anti-inflammatory activity.
  • HY-145846
    iNOs-IN-1
    		Inhibitor 99.83%
    iNOs-IN-1 (YPW) is a potent inducible nitric oxide synthase (iNOS) inhibitor. iNOs-IN-1 can significantly inhibit the expression of IL-6 and iNOS, as well as reduce LPS-induced NO generation with dose-dependent manner in mouse macrophages. Anti-inflammatory effects.
  • HY-W003969
    Aminopicoline
    		Inhibitor 99.99%
    Aminopicoline (Ascensil) is a potent and nonselective inhibitor of NO synthase (NOS) isoenzymes (iNOS, nNOS, eNOS).
  • HY-W022047
    nNOS-IN-1
    		Inhibitor 99.53%
    nNOS-IN-1(Compound 14) is an inhibitor for nitric oxide synthases (NOS), that exhibits inhibitory activities against neuroal, inducible and endothelial NOS, with IC50s of 2.5, 5.7 and 13 μM, respectively.
  • HY-12124
    BBS-4
    		Inhibitor 99.51%
    BBS-4 is a potent and selective inducible nitric oxide synthase (NOS2) dimerization inhibitor, with an IC50 of 0.49 nM. BBS-4 can protect mice from the cardiovascular dysfunction of sepsis.
  • HY-118700A
    2-Iminobiotin hydrobromide
    		Inhibitor ≥98.0%
    2-Iminobiotin hydrobromide (Guanidinobiotin hydrobromide) is a biotin (vitamin H or B7) analog. 2-Iminobiotin hydrobromide is a reversible nitric oxide synthases inhibitor with Kis of 21.8 and 37.5 μM for murine iNOS and rat n-cNOS, respectively. 2-Iminobiotin hydrobromide superimposes on hypothermia protects human neuronal cells from hypoxia-induced cell damage.
  • HY-12122A
    AR-C102222 hydrochloride
    		Inhibitor 99.83%
    AR-C102222 hydrochloride is a potent, competitive, orally active and highly selective inducible nitric oxide synthase (iNOS) inhibitor, with an IC50 of 37 nM. AR-C102222 hydrochloride has antinociception and anti-inflammatory activities.
  • HY-N2008
    Luteolin 5-O-glucoside
    		Inhibitor ≥98.0%
    Luteolin 5-O-glucoside, a major flavonoidfrom Cirsium maackii, possesses anti-inflammatory activity. Luteolin 5-O-glucoside inhibits LPS-induced NO production and t-BHP-induced ROS generation. Luteolin 5-O-glucoside suppresses the expression of iNOS and COX-2 in macrophages.
  • HY-N0577
    Apiin
    		Inhibitor 99.94%
    Apiin, a major constituent of Apium graveolens leaves with anti-inflammatory properties. Apiin shows significant inhibitory activity on nitrite (NO) production (IC50 = 0.08 mg/mL) in-vitro and iNOS expression (IC50 = 0.049 mg/ mL) in LPS-activated J774.A1 cells.
  • HY-101316
    TRIM
    		Inhibitor 99.90%
    TRIM is a potent nitric oxide synthase inhibitor. TRIM inhibits mouse cerebellar nNOS and rat lung iNOS in vitro with IC50 values of 28.2 and 27.0 µM, respectively. Antidepressant- and anxiolytic-like effects.
  • HY-N7064
    Iminostilbene
    		Inhibitor 99.34%
    Iminostilbene is a chemical precursor of carbamazepine. Additionally, Iminostilbene is an orally active inhibitor of PKM2 (Pyruvate Kinase M2) and COX2 (Cyclooxygenase-2). Iminostilbene exerts its effects by inhibiting PKM2 and its interaction with HIF-1α and STAT3, reducing COX2 and iNOS expression, and decreasing LPS-induced release of IL-1β, IL-6, TNF-α, and MCP-1, thereby suppressing macrophage-mediated inflammatory responses and improving myocardial ischemia/reperfusion (MI/R) injury. Iminostilbene holds promise for research in inflammation regulation, cardiovascular diseases (such as MI/R injury), and macrophage-mediated immune-related diseases.