2. Signaling Pathways
  3. Neuronal Signaling
  4. Monoamine Oxidase

Monoamine Oxidase

MAO

Monoamine Oxidase

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Monoamine oxidases (MAO) are a family of enzymes that catalyze the oxidation of monoamines. They are found bound to the outer membrane of mitochondria in most cell types in the body. They belong to the protein family of flavin-containing amine oxidoreductases. Monoamine oxidases catalyze the oxidative deamination of monoamines. Oxygen is used to remove an amine group from a molecule, resulting in the corresponding aldehyde and ammonia. Monoamine oxidases contain the covalently bound cofactor FAD and are, thus, classified as flavoproteins. Because of the vital role that MAOs play in the inactivation of neurotransmitters, MAO dysfunction is thought to be responsible for a number of psychiatric and neurological disorders. MAO-A inhibitors act as antidepressant and antianxiety agents, whereas MAO-B inhibitors are used alone or in combination to treat Alzheimer’sand Parkinson’s diseases.

Monoamine Oxidase Isoform Specific Products:

Monoamine Oxidase Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-22385
    Salsolidine
    		Inhibitor
    Salsolidine is a tetrahydroisoquinoline alkaloid, acts as a stereoselective competitive MAO A inhibitor.
    Salsolidine
  • HY-N6057
    Obtusin
    		Inhibitor 99.10%
    Obtusin, isolated from Cassia obtusifolia Linn seed, is a highly selective and competitive human monoamine oxidase-A (hMAO-A) inhibitor with an IC50 of 11.12 μM and a Ki of 6.15 μM. Obtusin plays a preventive role in neurodegenerative diseases, especially anxiety and depression.
    Obtusin
  • HY-151388
    hMAO-B/MB-COMT-IN-1
    		Inhibitor 98.04%
    hMAO-B/MB-COMT-IN-1 is a dual MAO-B/MB-COMT inhibitor (IC50s: 2.5 μΜ for hMAO-B, 3.84 μΜ for MB-COMT). hMAO-B/MB-COMT-IN-1 protects cells against oxidative damage. hMAO-B/MB-COMT-IN-1 can be used in the research of neurodegeneration disease, such as Parkinson’s Disease (PD).
    hMAO-B/MB-COMT-IN-1
  • HY-B1440
    Ethaverine hydrochloride
    		Inhibitor 99.72%
    Ethaverine hydrochloride, a derivative of papaverine, inhibits cardiac L-type calcium channel. Ethaverine hydrochloride is a peripheral vasodilator and antispasmodic agent. Ethaverine hydrochloride can be used for research of peripheral vascular disease.
    Ethaverine hydrochloride
  • HY-N7598
    Chrysophanol-1-O-β-gentiobioside
    		Inhibitor ≥99.0%
    Chrysophanol-1-O-β-gentiobioside, an anthraquinone glycoside isolated from Cassia obtusifolia seeds. Chrysophanol-1-O-β-gentiobioside shows selective inhibition of hMAO-A isozyme activity (IC50=96.15 μM).
    Chrysophanol-1-O-β-gentiobioside
  • HY-156255
    MAO-B-IN-25
    		Inhibitor 99.11%
    MAO-B-IN-25 (compound 92) is a selective MAO-B inhibitor with IC50s of 0.5 nM and 240 nM for MAO-A and MAO-B, respectively.
    MAO-B-IN-25
  • HY-B1558A
    Bifemelane hydrochloride
    		Inhibitor 99.86%
    Bifemelane hydrochloride (MCI-2016) is a potent, selective and competitive inhibitor of monoamine oxidase A (MAO-A), with a Ki of 4.20 μM. Bifemelane hydrochloride also inhibits MAO-B noncompetitively with a Ki of 46.0 μM. Bifemelane hydrochloride has a potent antidepressant activity and can be used for the research of cognitive and emotional disturbances related to cerebrovascular disease.
    Bifemelane hydrochloride
  • HY-10400
    Ladostigil hemitartrate
    		Inhibitor 98.90%
    Ladostigil (TV-3326) hemitartrate is an orally active dual inhibitor of cholinesterase and brain-selective monoamine oxidase (MAO), with IC50s of 37.1 and 31.8 μM for MAO-B and AChE, respectively. Ladostigil hemitartrate exhibits neuroprotective, antioxidant and anti-inflammatory activities. Ladostigil hemitartrate can be used for the research of depression and Alzheimer's disease. Ladostigil (hemitartrate) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Ladostigil hemitartrate
  • HY-149234
    MAO-B-IN-18
    		Inhibitor 99.84%
    MAO-B-IN-18 is a potent and selective MAO B inhibitor with IC50s of 52 nM and 14 μM for hMAO B and hMAO A, respectively. MAO-B-IN-18 enables promising cytoprotective effects against hydrogen peroxide insults in neuroblastoma and astrocytes cultures.
    MAO-B-IN-18
  • HY-14201
    Lazabemide
    		Inhibitor 99.95%
    Lazabemide (Ro 19-6327) is a selective, reversible inhibitor of monoamine oxidase B (MAO-B) (IC50=0.03 μM) but less active for MAO-A (IC50>100 μM). Lazabemide ?inhibits monoamine uptake at high concentrations, the IC50 values are 86 μM, 123 μM and >500 μM for noradrenalin, serotonin and dopamine uptake, respectively. Lazabemide can be used for the research of parkinson and?alzheimer′s disease.
    Lazabemide
  • HY-14260
    RS 8359
    		Inhibitor
    RS 8359 is a selective and reversible MAO-A inhibitor, with antidepressant activity.
    RS 8359
  • HY-B1111
    Amitraz
    		Inhibitor 99.65%
    Amitraz is a non-systemic acaricide and insecticide with alpha-adrenergic agonist activity that interacts with octopamine receptors in the central nervous system and inhibits monoamine oxidase and prostaglandin synthesis.
    Amitraz
  • HY-114286
    PXS-5153A
    		Inhibitor
    PXS-5153A is a potent, selective, orally active and fast-acting lysyl oxidase like 2/3 enzymatic (LOXL2/LOXL3) inhibitor, with an IC50 of <40 nM for LOXL2 across all mammalian species and an IC50 of 63 nM for human LOXL3. PXS-5153A could reduce crosslinks and ameliorates fibrosis.
    PXS-5153A
  • HY-10399A
    Ladostigil hydrochloride
    		Inhibitor 99.94%
    Ladostigil (TV-3326) hydrochloride is an orally active dual inhibitor of cholinesterase and brain-selective monoamine oxidase (MAO), with IC50s of 37.1 and 31.8 μM for MAO-B and AChE, respectively. Ladostigil hydrochloride exhibits neuroprotective, antioxidant and anti-inflammatory activities. Ladostigil can be used for the research of depression and Alzheimer's disease. Ladostigil (hydrochloride) is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Ladostigil hydrochloride
  • HY-14200
    (S)-Rasagiline
    		Inhibitor 99.80%
    (S)-Rasagiline (TVP1022) is the relatively inactive S-enantiomer form of Rasagiline. Rasagiline is a highly potent selective irreversible MAO inhibitor with IC50s of 4.43 nM and 412 nM for rat brain MAO B and A activity, respectively. (S)-Rasagiline is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    (S)-Rasagiline
  • HY-19915B
    Contezolid acefosamil sodium
    		Inhibitor
    Contezolid acefosamil sodium (MRX-4), a new and orally active oxazolidinone, is an antibiotic in study for complicated skin and soft tissue infections (cSSTI) caused by resistant Gram-positive bacteria. Contezolid acefosamil sodium (MRX-4) markedly reduces potential for myelosuppression and monoamine oxidase inhibition (MAOI).
    Contezolid acefosamil sodium
  • HY-100975
    TB5
    		Inhibitor 99.96%
    TB5 is a potent, selective and reversible inhibitor of hMAO-B with a Ki value of 0.11±0.01 μM.
    TB5
  • HY-151466
    HIF-1α-IN-5
    		Inhibitor 99.95%
    HIF-1α-IN-5 is a HIF-1α inhibitor with an IC50 value of 24 nM (in HEK293T cell). HIF-1α-IN-5 also inhibits MAO-A activity. HIF-1α-IN-5 downregulates VEGF and PDK1 mRNA expressions under hypoxia. HIF-1α-IN-5 can be used in the research of cancer.
    HIF-1α-IN-5
  • HY-122812
    Maesopsin
    		Inhibitor 99.66%
    Maesopsin is a phenolic compound, that can be isolated from Hoveniae Lignum.
    Maesopsin
  • HY-N0453R
    Hypericin (Standard)
    		Inhibitor
    Hypericin (Standard) is the analytical standard of Hypericin. This product is intended for research and analytical applications. Hypericin is a naturally occurring substance found in Hyperlcurn perforatum L. Hypericin is an inhibitor of PKC (protein kinase C), MAO (monoaminoxidase), dopamine-beta-hydroxylase, reverse transcriptase, telomerase and CYP (cytochrome P450). Hypericin shows antitumor, antiviral, antidepressive activities, and can induce apoptosis.
    Hypericin (Standard)
Cat. No. Product Name / Synonyms Application Reactivity
Monoamine Oxidase Isoform Comparison

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