1. Signaling Pathways
  2. Metabolic Enzyme/Protease
    Neuronal Signaling
  3. COMT

COMT

Catechol O-methyltransferase (COMT) is a ubiquitous bisubstrate magnesium-dependent enzyme found in plants, animals and microorganisms. COMT catalyses the transfer of a methyl group from S-adenosyl-L-methionine (SAM) to one of the hydroxyl oxygen atoms (preferentially the 3-hydroxyl) in a catechol substrate. Physiological substrates of COMT are catecholamine neurotransmitters such as dopamine, noradrenaline, adrenaline and their metabolites. COMT also methylates catecholic steroids such as 2-hydroxyestradiol as well as a range of other catecholic compounds including neuroactive drugs such as L-dopa, α-methyldopa and isoproterenol. COMT inhibition is a means of treating Parkinson’s disease, schizophrenia and depression. There are two isoforms of human COMT: soluble cytoplasmic COMT (S-COMT), which is mainly intracellular, and a membrane-bound form (MB-COMT), which has a single-span helix contained within a 50 amino acid extension at the N-terminus.

COMT is an enzyme that plays a major role in catechol neurotransmitter deactivation. Inhibition of COMT can increase neurotransmitter levels, which provides a means of treatment for Parkinson’s disease, schizophrenia and depression.

COMT Related Products (13):

Cat. No. Product Name Effect Purity
  • HY-B1473
    Serotonin hydrochloride Inhibitor 99.97%
    Serotonin hydrochloride is a monoamine neurotransmitter in the CNS and an endogenous 5-HT receptor agonist. Serotonin hydrochloride is also a catechol O-methyltransferase (COMT) inhibitor with a Ki of 44 μM.
  • HY-14280
    Entacapone Inhibitor 99.97%
    Entacapone is a potent, reversible, peripherally acting and orally active catechol-O-methyltransferase (COMT) inhibitor. Entacapone inhibits COMT from rat brain, erythrocytes and liver with IC50 values of 10 nM, 20 nM, and 160 nM, respectively. Entacapone is selective for COMT over other catecholamine metabolizing enzymes, including MAO-A, MAO-B, phenolsulphotransferase M (PST-M) and PST-P (IC50s>50 µM). Entacapone can be used for the research of Parkinson's disease. Entacapone serves as a inhibits FTO demethylation activity with an IC50 of 3.5 μM and can be used for the research of metabolic disorders.
  • HY-N0529
    Rosmarinic acid Inhibitor 99.29%
    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.
  • HY-14896
    Opicapone Inhibitor 99.64%
    Opicapone is a potent third-generation catechol-O-methyltransferase (COMT) inhibitor for the research of Parkinson's disease and motor fluctuations. Opicapone decreases the ATP content of the cells with an IC50 of 98 μM.
  • HY-17406
    Tolcapone Inhibitor 99.74%
    Tolcapone (Ro 40-7592) is a selective, potent and orally active COMT inhibitor. Tolcapone is also a potent inhibitor of α-syn and Aβ42 oligomerization and fibrillogenesis and protect against extracellular toxicity induced by the aggregation of both proteins in PC12 cells.
  • HY-106842
    Nitecapone Inhibitor 99.32%
    Nitecapone (OR-462) is an orally active and short-acting catechol-O-methyltransferase (COMT) inhibitor with gastroprotective and antioxidant properties. Nitecapone (OR-462) scavenges reactive oxygen and nitric radicals and prevents lipid peroxidation.
  • HY-133068
    5-Hydroxyferulic acid
    5-Hydroxyferulic acid is a hydroxycinnamic acid and is a metabolite of the phenylpropanoid pathway. 5-Hydroxyferulic acid is a precursor in the biosynthesis of sinapic acid and is also a COMT non-esterifed substrate.
  • HY-100562
    Flopropione Inhibitor 98.37%
    Flopropione is a 5-HT receptor antagonist and also a catechol-o-methyltransferase (COMT) inhibitor. Flopropione also as an antispasmodic agent.
  • HY-100642S
    3-O-Methyltolcapone D7 Inhibitor
    3-O-Methyltolcapone D7 (Ro 40-7591 D7) is a deuterium labeled 3-O-Methyltolcapone. 3-O-Methyltolcapone is a metabolite of Tolcapone. Tolcapone is an orally active, reversible, selective and potent COMT inhibitor. Tolcapone crosses the blood-brain barrier, and can be used for treatment of Parkinson's disease.
  • HY-100642
    3-O-Methyltolcapone Inhibitor
    3-O-Methyltolcapone (Ro 40-7591) is a metabolite of Tolcapone. Tolcapone is an orally active, reversible, selective and potent COMT inhibitor. Tolcapone crosses the blood-brain barrier, and can be used for treatment of Parkinson's disease.
  • HY-17406S
    Tolcapone D7 Inhibitor
    Tolcapone D7 (Ro 40-7592 D7) is a deuterium labeled Tolcapone. Tolcapone is a selective, potent and orally active COMT inhibitor. Tolcapone is also a potent inhibitor of α-syn and Aβ42 oligomerization and fibrillogenesis and protect against extracellular toxicity induced by the aggregation of both proteins in PC12 cells.
  • HY-106405
    Nebicapone Inhibitor
    Nebicapone (BIA 3-202), a reversible catechol-O-methyltransferase (COMT) inhibitor, is mainly metabolized by glucuronidation. Nebicapone is mainly peripherally acting inhibitor that decreases the biotransformation of L-DOPA to 3-O-methyl-DOPA by inhibition of COMT, and it is potential for the treatment of Parkinson's disease..
  • HY-14280A
    Entacapone sodium salt Inhibitor
    Entacapone sodium salt is a potent, reversible, peripherally acting and orally active catechol-O-methyltransferase (COMT) inhibitor. Entacapone sodium salt inhibits COMT from rat brain, erythrocytes and liver with IC50 values of 10 nM, 20 nM, and 160 nM, respectively. Entacapone sodium salt is selective for COMT over other catecholamine metabolizing enzymes, including MAO-A, MAO-B, phenolsulphotransferase M (PST-M) and PST-P (IC50s>50 µM). Entacapone sodium salt can be used for the research of Parkinson's disease. Entacapone sodium salt serves as a inhibits FTO demethylation activity with an IC50 of 3.5 μM and can be used for the research of metabolic disorders.
Isoform Specific Products

Your Search Returned No Results.

Sorry. There is currently no product that acts on isoform together.

Please try each isoform separately.