Catechol-O-Methyltransferase (COMT)

Catechol-O-methyltransferase (COMT) inhibitors block an enzyme that inactivates catecholamines such as dopamine. COMT transfers a methyl group from S-adenosylmethionine (SAM) to one hydroxyl group of the catechol ring. Enzymatic O-methylation of epinephrine and related catechols was first described in 1958. The enzyme converts dopamine into 3-methoxytyramine, a metabolite also listed here as 3-methoxyTyramine HCl. A common functional polymorphism, reported in 1996, lowers COMT activity and is studied in neuropsychiatric research. Entacapone, tolcapone, opicapone and nebicapone are nitrocatechol inhibitors used to study catecholamine and levodopa metabolism. The listing also includes related monoamine compounds such as serotonin maleate.

3 Items

  • Flopropione
    Cat. No.
    A16550

    Flopropione

    Flopropione is a 5-HT1A receptor antagonist and also a catechol-o-methyltransferase (COMT) inhibitor.

    50 mg
    $25.00
    100 mg
    $35.00
    All 5 sizes
  • 3-BTMD
    Cat. No.
    A44570

    3-BTMD

    3-BTMD is a fluorescent compound generated through the action of the COMT enzyme on its substrate, 3-BTD, exhibiting an excitation wavelength of 390 nm and an emission wavelength of 510 nm. This reagent is primarily utilized in fluorescent labeling and imaging applications, facilitating the study of enzymatic activity and biomolecular interactions in various biological contexts. Its distinct fluorescence properties make it a valuable tool for researchers in the fields of biochemistry and molecular biology.

    25 mg
    $1,275.00
    50 mg
    $1,625.00
    All 3 sizes
  • 3-O-Methyldopa monohydrate
    Cat. No.
    A69651

    3-O-Methyldopa monohydrate

    Synonyms: 3-Methoxy-L-tyrosine monohydrate; 3-O-Methyl-L-DOPA monohydrate

    3-O-Methyldopa monohydrate is a notable metabolite of L-DOPA, primarily interacting with catechol O-methyltransferase (COMT). It does not function as a substrate or inhibitor of L-amino acid decarboxylase, distinguishing it from its precursor. The inhibition of COMT by this compound may enhance the therapeutic effects of L-DOPA in Parkinson's disease, making it a valuable tool in neurological research and studies on Parkinson's treatments.

    1 mg
    $20.00
    5 mg
    $75.00
    All 4 sizes

3 Items

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