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-N0529
    Rosmarinic acid
    		Inhibitor 99.70%
    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
  • HY-B1496
    Tranylcypromine hemisulfate
    		Inhibitor 99.94%
    Tranylcypromine (SKF 385) hemisulfate is an irreversible, nonselective monoamine oxidase (MAO) inhibitor used in the treatment of depression. Tranylcypromine hemisulfate is also a lysine-specific demethylase 1 (LSD1) inhibitor, suppresses lesion growth and improves generalized hyperalgesia in mouse with induced endometriosis. Tranylcypromine has antidepressant effects.
    Tranylcypromine hemisulfate
  • HY-14197A
    Clorgyline hydrochloride
    		Inhibitor 99.70%
    Clorgyline hydrochloride is an irreversible and selective inhibitor of monoamine oxidase A (MAO-A) that is used in scientific research; structurally related to Pargyline.
    Clorgyline hydrochloride
  • HY-100546A
    GSK-LSD1 dihydrochloride
    		Inhibitor ≥98.0%
    GSK-LSD1 dihydrochloride is a potent, selective and irreversible lysine specific demethylase 1 (LSD1) inhibitor with an IC50 of 16 nM.
    GSK-LSD1 dihydrochloride
  • HY-14536
    Methylene Blue
    		Inhibitor 98.08%
    Methylene blue (Basic Blue 9) is a guanylyl cyclase (sGC), monoamine oxidase A (MAO-A) and NO synthase (NOS) inhibitor. Methylene blue is a vasopressor and is often used as a dye in several medical procedures. Methylene blue through the nitric oxide syntase/guanylate cyclase signalling pathway to reduce prepulse inhibition. Methylene blue is a REDOX cycling compound and able to cross the blood-brain barrier. Methylene blue is a Tau aggregation inhibitor. Methylene blue reduces cerebral edema, attenuated microglial activation and reduced neuroinflammation.
    Methylene Blue
  • HY-149597
    Lysyl hydroxylase 2-IN-1
    		Inhibitor 99.89%
    Lysyl hydroxylase 2-IN-1 (compound 12) is a selective lysyl hydroxylase 2 (LH2) Inhibitor with an IC50 of ~300 nM. Lysyl hydroxylase 2-IN-1 demonstrates selectivity for LH2 over LH1 and LH3.
    Lysyl hydroxylase 2-IN-1
  • 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-124609
    CAD031
    		Inhibitor 99.39%
    CAD031 is a derivative of the Alzheimer's disease (AD) targeting agent J147 (HY-13779) with neuroprotective and memory-enhancing properties. CAD031 enhances memory in mice, improves dendritic structure, and stimulates cell division in the germinal zone of the brain in aged mice. CAD031 is more active than J147 in human neural stem cell assays.
    CAD031
  • HY-N0453
    Hypericin
    		Inhibitor ≥98.0%
    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
  • HY-N0159
    Paeonol
    		Inhibitor 99.98%
    Paeonol is an active extraction from the root of Paeonia suffruticosa, Paeonol inhibits MAO-A and MAO-B with IC50 of 54.6 μM and 42.5 μM, respectively.
    Paeonol
  • HY-A0091A
    Pargyline
    		Inhibitor 99.77%
    Pargyline is an irreversible monoamine oxidase (MAO) inhibitor with Kis of 13 μM and 0.5 μM for MAO-A and MAO-B, respectively. Pargyline has antihypertensive and anticancer activities. Pargyline is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Pargyline
  • HY-A0091
    Pargyline hydrochloride
    		Inhibitor 99.91%
    Pargyline hydrochloride is an irreversible monoamine oxidase (MAO) inhibitor with Kis of 13 μM and 0.5 μM for MAO-A and MAO-B, respectively. Pargyline hydrochloride has antihypertensive and anticancer activities. Pargyline (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.
    Pargyline hydrochloride
  • HY-101771A
    (2-Chloropyridin-4-yl)methanamine hydrochloride
    		98.08%
    (2-Chloropyridin-4-yl)methanamine hydrochloride is a selective LOXL2 inhibitor with an IC50 of 126 nM.
    (2-Chloropyridin-4-yl)methanamine hydrochloride
  • HY-B0534
    Moclobemide
    		Inhibitor 99.90%
    Moclobemide (Ro111163) is a brain-penetrant and reversible monoamine oxidase (MAO-A) inhibitor with an IC50 of 6.061 μM for hMAO-A.Moclobemide up-regulates proliferation of hippocampal progenitor cells in chronically stressed mice.
    Moclobemide
  • HY-14605A
    Rasagiline
    		Inhibitor 99.88%
    Rasagiline (R-AGN1135) is a highly potent selective irreversible mitochondrial monoamine oxidase (MAO) inhibitor with IC50s of 4.43?nM and 412?nM for rat brain MAO B and A activity, respectively. Rasagiline is a click chemistry reagent, itcontains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Rasagiline
  • 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-107422
    Lenumlostat
    		99.92%
    PAT-1251 is a potent, selective and oral lysyl oxidase-like 2 (LOXL2) inhibitor, with IC50s of 0.71 and 1.17 μM for hLOXL2 and hLOXL3, respectively, and also potently inhibits mouse, rat, and dog LOXL2 (IC50s, 0.10, 0.12, and 0.16 μM, respectively); PAT-1251 is used in the research of fibrotic diseases.
    Lenumlostat
  • HY-114286A
    PXS-5153A monohydrochloride
    		Inhibitor 99.67%
    PXS-5153A monohydrochloride 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 monohydrochloride could reduce crosslinks and ameliorates fibrosis.
    PXS-5153A monohydrochloride
  • HY-112726
    PXS-4728A
    		Inhibitor 98.79%
    PXS-4728A (BI-1467335) is a selective, orally active inhibitor of semicarbazide-sensitive amine oxidase (SSAO). PXS-4728A ameliorates chronic obstructive pulmonary disease in mice.
    PXS-4728A
  • HY-112623
    Vafidemstat
    		Inhibitor 99.53%
    Vafidemstat (ORY-2001) is an oral, brain penetrant, dual lysine-specific histone demethylase (LSD1)/MAO-B inhibitor.
    Vafidemstat
Monoamine Oxidase Isoform Comparison

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