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-N2106
    Dehydroevodiamine
    		Inhibitor 99.93%
    Dehydroevodiamine is a major bioactive quinazoline alkaloid isolated from Evodiae Fructus, has an antiarrhythmic effect in guinea-pig ventricular myocytes. Dehydroevodiamine inhibits LPS-induced iNOS, COX-2, prostaglandin E2 (PGE2) and nuclear factor-kappa B (NF-κB) expression in murine macrophage cells.
  • HY-N6878
    Cauloside D
    		99.69%
    Cauloside D is a triterpene glycoside isolated from Caulophyllum robustum Max. Cauloside D exerts anti-inflammatory effects through the inhibition of expression of iNOS and proinflammatory cytokines.
  • HY-115498
    ARN14494
    		Inhibitor 99.08%
    ARN14494 is a potent and selective serine palmitoyltransferase (SPT) inhibitor, with an IC50 of 27.3 nM. ARN14494 affects the CNS in terms of anti-inflammation and neuroprotection. ARN14494 protects neurons from β-amyloid 1-42-induced neurotoxicity through a variety of mechanisms, including anti-oxidation, anti-apoptosis, and anti-inflammation. ARN14494 can be used for Alzheimer’s disease research.
  • HY-101251
    AMT hydrochloride
    		Inhibitor 99.03%
    AMT hydrochloride is a selective inhibitor of inducible NOS (iNOS) with Ki of 4.2 nM.
  • HY-N0811
    Anemarsaponin B
    		Inhibitor
    Anemarsaponin B is a steroidal saponin. Anemarsaponin B decreases the protein and mRNA levels of iNOS and COX-2. Anemarsaponin B reduces the expressions and productions of pro-inflammatory cytokines, including TNF-a and IL-6. Anemarsaponin B inhibits the nuclear translocation of the p65 subunit of NF-κB by blocking the phosphorylation of IκBα. Anemarsaponin B also inhibits the phosphorylation of MAP kinase kinases 3/6 (MKK3/6) and mixed lineage kinase 3 (MLK3). Anti-inflammatory effect .
  • HY-N8371
    Shizukaol B
    		Inhibitor
    Shizukaol B is a lindenane-type dimeric sesquiterpene, used to be isolated from the whole plant of Chloranthus henryi. Shizukaol B has anti-inflammatory effect against lipopolysaccharide (LPS)-induced activation of BV2 microglial cells. Shizukaol B inhibits iNOS and COX-2, and suppresses NO production, TNF-α, and IL-1β expression.
  • HY-N0569R
    Madecassic acid (Standard)
    		Inhibitor
    Madecassic acid (Standard) is the analytical standard of Madecassic acid. This product is intended for research and analytical applications. Madecassic acid is isolated from Centella asiatica (Umbelliferae). Madecassic acid has anti-inflammatory properties caused by iNOS, COX-2, TNF-alpha, IL-1beta, and IL-6 inhibition via the downregulation of NF-κB activation in RAW 264.7 macrophage cells.
  • HY-N6919
    Cauloside C
    		Inhibitor 99.66%
    Cauloside C is a triterpene glycoside isolated from Caulophyllum robustum Max. Cauloside C exerts anti-inflammatory effects through the inhibition of expression of iNOS and proinflammatory cytokines.
  • HY-131929
    AE-ITU dihydrobromide
    		Inhibitor ≥98.0%
    AE-ITU dihydrobromide is the dihydrobromide form of AE-ITU. AE-ITU dihydrobromide is a selective inhibitor for inducible NO synthase (iNOS), and attenuates the liver dysfunction caused by endotoxaemia in rats.
  • HY-12118
    L-NIL dihydrochloride
    		Inhibitor
    L-NIL dihydrochloride is an inducible NO synthase inhibitor, with an IC50 of 3.3 μM for miNOS.
  • HY-152536
    iNOS inhibitor-10
    		Inhibitor
    iNOS inhibitor-10 is an iNOS inhibitor (IC50: 65 nM). iNOS inhibitor-10 has antiproliferative effect against triple negative breast cancer cells.
  • HY-13562
    Banoxantrone
    		Activator
    Banoxantrone (AQ4N), as a prototype hypoxia selective cytotoxin, can be reduced to AQ4, a potent topoisomerase II inhibitor. Banoxantrone selectively kills hypoxic cells via an iNOS-dependent mechanism. Banoxantrone shows a potent cytotoxicity and hypoxia-selective effect enhanced by radiation.
  • HY-N6770
    Curvularin
    		Inhibitor
    Curvularin, a fungal metabolite and a potent mycotoxin naturally isolated from Curvularia lunata, inhibits cytokine-induced nitric oxide synthase (iNOS), with an IC50 of 9.5 µM.
  • HY-137957
    Longiferone B
    		Inhibitor
    Longiferone B is a daucane sesquiterpene, that can be isolated from Boesenbergia longiflora rhizomes. Longiferone B shows anti-inflammatory activity against NO release with an IC50 of 21.0 μM. Longiferone B also suppresses the iNOS and COX-2 mRNA expression.
  • HY-W484263
    hnNOS-IN-3
    		Inhibitor
    hnNOS-IN-3 (compound 39) is a selective nNOS inhibitor, with a Ki of 0.32 μM. The nNOS binding of hnNOS-IN-3 is competitive with L-arginine. The selectivity of hnNOS-IN-3 for nNOS versus iNOS (Ki=37 μM) and eNOS (Ki=9.4 μM) is 115-fold and 29-fold, respectively.
  • HY-N0041R
    Ginsenoside Rb3 (Standard)
    		Inhibitor
    Ginsenoside Rb3 (Standard) is the analytical standard of Ginsenoside Rb3. This product is intended for research and analytical applications. 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-N7630
    Rehmapicrogenin
    		Inhibitor
    Rehmapicrogenin, isolated from the root of Rehmannia glutinosa, exhibits potent anti-inflammatory effect by inhibiting iNOS, COX-2 and IL-6.
  • HY-161513
    iNOS/COX-2-IN-1
    		Inhibitor
    iNOS/COX-2-IN-1 (Compound 12e) is an inhibitor of cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS). iNOS/COX-2-IN-1 inhibits the NF-κB and MAPKs signaling pathways and thus exerts anti-inflammatory effects.
  • HY-114798
    Rabelomycin
    		Inhibitor
    Rabelomycin is antibiotic, which exhibits antimicrobial activity against gram positive bacteria. Rabelomycin exhibits inhibitory activity against inducible nitric oxide synthase (iNOS) with an IC50 of 63.9 μM.
  • 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 .