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Catechol O-methyltransferase, porcine liver (COMT), the magnesium-dependent transfer of methyl groups from S-adenosyl methionine to a hydroxyl group on dopamine, converting it to 3-methoxytyramine. Catechol O-methyltransferase has two forms in tissues, a soluble form (S-COMT) and a membrane-bound form (MB-COMT). Catechol O-methyltransferase is to regulate epinephrine, norepinephrine, and dopamine levels in the brain .
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) .
COMT Human Pre-designed siRNA Set A contains three designed siRNAs for COMT gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control.
Comt Mouse Pre-designed siRNA Set A contains three designed siRNAs for Comt gene (Mouse), as well as a negative control, a positive control, and a FAM-labeled negative control.
Comt Rat Pre-designed siRNA Set A contains three designed siRNAs for Comt gene (Rat), as well as a negative control, a positive control, and a FAM-labeled negative control.
hMAO-B/MB-COMT-IN-2 is a dual MAO-B/MB-COMT inhibitor (IC50s: 4.27 μΜ for hMAO-B, 2.69 μΜ for MB-COMT). hMAO-B/MB-COMT-IN-2 protects cells against oxidative damage. hMAO-B/MB-COMT-IN-2 can be used in the research of neurodegeneration disease, such as Parkinson’s Disease (PD) .
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 inhibitor of FTO demethylation with an IC50 of 3.5 μM, can be used for the research of metabolic disorders .
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 as a inhibit of FTO demethylation with an IC50 of 3.5 μM, can be used for the research of metabolic disorders .
3-O-Methyldopa-d3 is deuterium labeled 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].
3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine .
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 .
Tolcapone (Ro 40-7592) is a selective, orally active and powerful mixed (peripheral and central) COMT inhibitor with an IC50 of 773 nM in the liver . Tolcapone is also a potent inhibitor of α-syn and Aβ42 oligomerization and fibrillogenesis . Tolcapone induces oxidative stress leading to apoptosis and inhibition of tumor growth in neuroblastoma .
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 .
Entacapone-d10 is the deuterium labeled Entacapone. 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[1]. Entacapone serves as a inhibitor of FTO demethylation with an IC50 of 3.5 μM, can be used for the research of metabolic disorders[2].
(E)-Entacapone-d10 is the deuterium labeled Entacapone. 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[1]. Entacapone serves as a inhibitor of FTO demethylation with an IC50 of 3.5 μM, can be used for the research of metabolic disorders[2].
Entacapone (Standard) is the analytical standard of Entacapone. This product is intended for research and analytical applications. 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 inhibitor of FTO demethylation with an IC50 of 3.5 μM, can be used for the research of metabolic disorders .
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 .
S-Adenosylhomocysteine sulfoxide is an inhibitor of catechol-O-methyltransferase (COMT) with an IC50 value of 860 μM. S-Adenosylhomocysteine sulfoxide can be used in the research of methylation reaction modulators .
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.
Opicapone (BIA 9-1067) 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 .
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 .
(E)-5-Hydroxyferulic acid is the E-isomer of 5-hydroxyferulic acid (HY-133068). 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 substrat .
Isoetharine (Isoetarine) mesylate is an orally active selective agonist of β-adrenergic receptors. Isoetharine mesylate is a catechol-like agent and catechol O-methyltransferase (COMT) mediates its methylation. Isoetharine mesylate can promote the production of cAMP which stimulates the relaxation of smooth muscle cells and can be used as an emphysema, bronchitis and bronchodilator .
Isoetharine (Isoetarine) is an orally active selective agonist of β-adrenergic receptors. Isoetharine is a catechol-like agent and catechol O-methyltransferase (COMT) mediates its methylation. Isoetharine can promote the production of cAMP which stimulates the relaxation of smooth muscle cells and can be used as an emphysema, bronchitis and bronchodilator .
3-O-Methyltolcapone-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[1][2].
Tolcapone-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[1][2].
3-O-Methyldopa-d3 (hydrate) is the deuterium labeled 3-O-Methyldopa. 3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].
3-O-Methyltolcapone-d4 is the deuterium labeled 3-O-Methyltolcapone. 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[1][2].
Tolcapone-d4 is the deuterium labeled Tolcapone. Tolcapone (Ro 40-7592) is a selective, orally active and powerful mixed (peripheral and central) COMT inhibitor with an IC50 of 773 nM in the liver[1]. Tolcapone is also a potent inhibitor of α-syn and Aβ42 oligomerization and fibrillogenesis[2]. Tolcapone induces oxidative stress leading to apoptosis and inhibition of tumor growth in neuroblastoma[3].
(R)-3-O-Methyldopa-d3 is a deuterium labeled (R)-3-O-Methyldopa, and (R)-3-O-Methyldopa is an R-enantiomer of 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of L-DOPA and dopamine[1][2].
(R)-3-O-Methyldopa-d3 (hydrochloride) is a deuterium labeled (R)-3-O-Methyldopa, and (R)-3-O-Methyldopa is an R-enantiomer of 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of L-DOPA and dopamine[1][2].
Neurodegenerative diseases are incurable and life-threatening conditions that result in progressive degeneration and/or death of nerve cells. Some common neurodegenerative diseases include Alzheimer’s Disease (AD), Parkinson’s Disease (PD), Motor Neuron Disease (MND), Huntington’s Disease (HD), Spino-Cerebellar Ataxia (SCA), Spinal Muscular Atrophy (SMA), and Amyotrophic Lateral Sclerosis (ALS). Because the pathophysiology of neurodegenerative disorders is generally poorly understood, it is difficult to identify promising molecular targets and validate them. At the same time, about 85% of the drugs fail in clinical trials. Therefore, validating new targets and discovering new drugs to mitigate neurodegenerative disorders is need of the hour.
MCE offers a unique collection of 2228 compounds with anti-Neurodegenerative Diseases activities or targeting the unique targets of neurodegenerative diseases. MCE Neurodegenerative Disease-related Compound Library is a useful tool for exploring the mechanism of neurodegenerative diseases and discovering new drugs for neurodegenerative diseases.
Catechol O-methyltransferase, porcine liver (COMT), the magnesium-dependent transfer of methyl groups from S-adenosyl methionine to a hydroxyl group on dopamine, converting it to 3-methoxytyramine. Catechol O-methyltransferase has two forms in tissues, a soluble form (S-COMT) and a membrane-bound form (MB-COMT). Catechol O-methyltransferase is to regulate epinephrine, norepinephrine, and dopamine levels in the brain .
3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine .
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 .
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.
Catechol-O-methyltransferase (COMT) plays a crucial role by catalyzing and inactivating the O-methylation of catecholamine neurotransmitters and catechol hormones. This enzyme activity is critical for regulating the biological half-life of key neuroactive compounds, including catecholamines. COMT Protein, Human (His) is the recombinant human-derived COMT protein, expressed by E. coli , with N-6*His labeled tag. The total length of COMT Protein, Human (His) is 220 a.a., with molecular weight of 25-28 kDa.
Catechol-O-methyltransferase (COMT) plays a crucial role by catalyzing and inactivating the O-methylation of catecholamine neurotransmitters and catechol hormones. This enzyme activity is critical for regulating the biological half-life of key neuroactive compounds, including catecholamines. COMT Protein, Human (sf9, His) is the recombinant human-derived COMT protein, expressed by Sf9 insect cells , with C-His labeled tag. The total length of COMT Protein, Human (sf9, His) is 221 a.a., with molecular weight of ~20.3 kDa.
3-O-Methyldopa-d3 is deuterium labeled 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].
Entacapone-d10 is the deuterium labeled Entacapone. 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[1]. Entacapone serves as a inhibitor of FTO demethylation with an IC50 of 3.5 μM, can be used for the research of metabolic disorders[2].
3-O-Methyltolcapone-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[1][2].
(E)-Entacapone-d10 is the deuterium labeled Entacapone. 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[1]. Entacapone serves as a inhibitor of FTO demethylation with an IC50 of 3.5 μM, can be used for the research of metabolic disorders[2].
Tolcapone-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[1][2].
3-O-Methyldopa-d3 (hydrate) is the deuterium labeled 3-O-Methyldopa. 3-O-Methyldopa (3-Methoxy-L-tyrosine) is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of l-DOPA and dopamine[1].
3-O-Methyltolcapone-d4 is the deuterium labeled 3-O-Methyltolcapone. 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[1][2].
Tolcapone-d4 is the deuterium labeled Tolcapone. Tolcapone (Ro 40-7592) is a selective, orally active and powerful mixed (peripheral and central) COMT inhibitor with an IC50 of 773 nM in the liver[1]. Tolcapone is also a potent inhibitor of α-syn and Aβ42 oligomerization and fibrillogenesis[2]. Tolcapone induces oxidative stress leading to apoptosis and inhibition of tumor growth in neuroblastoma[3].
(R)-3-O-Methyldopa-d3 is a deuterium labeled (R)-3-O-Methyldopa, and (R)-3-O-Methyldopa is an R-enantiomer of 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of L-DOPA and dopamine[1][2].
(R)-3-O-Methyldopa-d3 (hydrochloride) is a deuterium labeled (R)-3-O-Methyldopa, and (R)-3-O-Methyldopa is an R-enantiomer of 3-O-Methyldopa. 3-O-Methyldopa is a metabolite of L-DOPA which is formed by catechol-O-methyltransferase (COMT). 3-O-Methyldopa competitively inhibits the pharmacodynamics of L-DOPA and dopamine[1][2].
