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-19333
    OG-L002
    		Inhibitor 99.81%
    OG-L002 is a potent and highly selective LSD1 inhibitor with an IC50 of 0.02 μM. OG-L002 is a potent monoamine oxidases (MAO) inhibitor with IC50s of 1.38 μM and 0.72 μM for MAO-A and MAO-B, respectively. OG-L002 potently inhibits the expression of HSV IE genes.
    OG-L002
  • HY-127109
    Tisolagiline
    		Inhibitor 99.97%
    Tisolagiline (KDS2010) is the selective, reversible and orally active inhibitor for MAO-B with an IC50 of 8 nM. Tisolagiline exhibits neuroprotective and anti-neuroinflammatory activities.
    Tisolagiline
  • HY-164099
    LSD1/HDAC6-IN-2
    		Inhibitor 99.66%
    LSD1/HDAC6-IN-2 (JBI-802) is an orally active LSD1/HDAC6/MAO-A inhibitor, with IC50 values of 5 nM, 11 nM, and 5 nM, respectively. LSD1/HDAC6-IN-2 can inhibit the growth of multiple myeloma cells MM.1S, MM.1R, and RPMI-8226. LSD1/HDAC6-IN-2 can be used for research on diseases such as acute myeloid leukemia and lymphoma.
    LSD1/HDAC6-IN-2
  • HY-124591
    TC-2153
    		Inhibitor 98.73%
    TC-2153 is a selective inhibitor of striatal-enriched protein tyrosine phosphatase (STEP), with psychotropic activity and low acute toxicity. TC-2153 increases the expression of brain-derived neurotropic factor (BDNF) in the brain. And it decreases MAOA and 5-HT1A receptors mRNA level in midbrain. TC-2153 also inhibits 5-HT2A receptor-mediated signaling.
    TC-2153
  • HY-13779
    (E/Z)-J147
    		Inhibitor 99.80%
    (E/Z)-J147 is an exceptionally potent, orally active, neuroprotective agent for cognitive enhancement. (E/Z)-J147 can readily pass the blood brain barrier (BBB). (E/Z)-J147 can inhibit monoamine oxidase B (MAO B) and the dopamine transporter with EC50 values of 1.88 μM and 0.649 μM, respectively. (E/Z)-J147 has potential for the treatment of Alzheimer’s disease (AD).
    (E/Z)-J147
  • HY-130242
    PXS-5120A
    		98.12%
    PXS-5120A is a potent, irreversible fluoroallylamine inhibitor of Lysyl Oxidase-like 2/3 (LOXL2/3) with anti-fibrotic activity. PXS-5120A is >300-fold selective for LOXL2 (Ki of 83 nM; pIC50 of 8.4) over LOXL (pIC50 of 5.8).
    PXS-5120A
  • HY-103164
    (E)-8-(3-Chlorostyryl)caffeine
    		Inhibitor 99.4%
    (E)-8-(3-Chlorostyryl)caffeine is a selective adenosine A2A receptor antagonist. (E)-8-(3-Chlorostyryl)caffeine inhibits monoamine oxidase B (MAO-B) with a Ki value of 70 nM by a pathway that is independent of its actions on the A2A receptor. (E)-8-(3-Chlorostyryl)caffeine has the potential for Parkinson's disease research.
    (E)-8-(3-Chlorostyryl)caffeine
  • HY-119395B
    Kynuramine dihydrochloride
    		Chemical 99.81%
    Kynuramine, an endogenously occurring amine, is a fluorescent substrate and probe of plasma amine oxidase.
    Kynuramine dihydrochloride
  • HY-N0529R
    Rosmarinic acid (Standard)
    		Inhibitor
    Rosmarinic acid (Standard) is the analytical standard of Rosmarinic acid. This product is intended for research and analytical applications. Rosmarinic acid is a widespread phenolic ester compound in the plants. Rosmarinic acid inhibits MAO-A, MAO-B and COMT enzymes with IC50s of 50.1, 184.6 and 26.7 μM, respectively.
    Rosmarinic acid (Standard)
  • HY-Y1322
    Triphenyl phosphate
    		Activator 99.67%
    Triphenyl phosphate is an organic phosphate flame retardant. Triphenyl phosphate can disrupt placental tryptophan metabolism by activating MAOA/ROS/NFκB, leading to abnormal neurological behavior. Triphenyl phosphate promotes oxidative stress by inducing inflammatory factors like nuclear factor kappa B (NFκB), interleukin-6, and tumor necrosis factor α. Triphenyl phosphate can also cause allergic contact dermatitis.
    Triphenyl phosphate
  • HY-14536A
    Methylene blue (purity≥70%)
    		Inhibitor
    Methylene blue (purity≥70%) is a guanylyl cyclase (sGC), monoamine oxidase A (MAO-A) and NO synthase (NOS) inhibitor. Methylene blue (purity≥70%) is a vasopressor and is often used as a dye in several medical procedures. Methylene blue (purity≥70%) through the nitric oxide syntase/guanylate cyclase signalling pathway to reduce prepulse inhibition. Methylene blue (purity≥70%) is a REDOX cycling compound and able to cross the blood-brain barrier. Methylene blue (purity≥70%) is a Tau aggregation inhibitor. Methylene blue reduces cerebral edema, attenuated microglial activation and reduced neuroinflammation.
    Methylene blue (purity≥70%)
  • HY-N9540
    Methyl citrate
    		Inhibitor 98.0%
    Methyl citrate is a Monoamine oxidase B (MAO-B) inhibitor (IC50=0.23 mM). Methyl citrate is isolated from the fruits of Opuntia ficus-indica var. saboten Makino.
    Methyl citrate
  • 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-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-22385
    Salsolidine
    		Inhibitor
    Salsolidine is a tetrahydroisoquinoline alkaloid, acts as a stereoselective competitive MAO A inhibitor.
    Salsolidine
  • 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-N12485
    MAO-A inhibitor 1
    		Inhibitor 98.55%
    MAO-A inhibitor 1 (compound VIII) is a MAO-A inhibitor, with an IC50 of 100 μM.
    MAO-A inhibitor 1
  • HY-B1413
    Eprobemide
    		Inhibitor 99.62%
    Eprobemide is a non-competitive reversible inhibitor of monoamine oxidase A.
    Eprobemide
  • 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-170573A
    LOXL2-IN-1 tosylate
    		Inhibitor 99.90%
    LOX-IN-5 tosylate (compound 22) is a selective and orally active lysyl oxidase-like 2 (LOXL2) inhibitor with an IC50 of <300 nM. LOX-IN-5 tosylate possess anti-fibrosis properties.
    LOXL2-IN-1 tosylate
Cat. No. Product Name / Synonyms Application Reactivity
Monoamine Oxidase Isoform Comparison

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