catechol-O-methyltransferase
Última actualización 24 Mar 2026
Cumple con las directrices editoriales
- DescargarDescargar
- Compartir
- Language
- Discusión
- Versión en audio
- Agregar a fuentes preferidas en Google
El COMT gene provides instructions for making an enzyme called catechol-O-methyltransferase. Two versions of this enzyme are made from the gene. The longer form, called membrane-bound catechol-O-methyltransferase (MB-COMT), is chiefly produced by nerve cells in the brain. Other tissues, including the liver, kidneys, and blood, produce a shorter form of the enzyme called soluble catechol-O-methyltransferase (S-COMT). This form of the enzyme helps control the levels of certain hormones.
Normal function
El COMT gene provides instructions for making an enzyme called catechol-O-methyltransferase. Two versions of this enzyme are made from the gene. The longer form, called membrane-bound catechol-O-methyltransferase (MB-COMT), is chiefly produced by nerve cells in the brain. Other tissues, including the liver, kidneys, and blood, produce a shorter form of the enzyme called soluble catechol-O-methyltransferase (S-COMT). This form of the enzyme helps control the levels of certain hormones.
In the brain, catechol-O-methyltransferase helps break down certain chemical messengers called neurotransmitters. These chemicals conduct signals from one nerve cell to another. Catechol-O-methyltransferase is particularly important in an area at the front of the brain called the prefrontal cortex, which organizes and coordinates information from other parts of the brain. This region is involved with personality, planning, inhibition of behaviors, abstract thinking, emotion, and working (short-term) memory. To function efficiently, the prefrontal cortex requires signaling by neurotransmitters such as dopamine and norepinephrine. Catechol-O-methyltransferase helps maintain appropriate levels of these neurotransmitters in this part of the brain.
Conditions referring to this gene or chromosome
Otros nombres
Catechol Methyltransferase
COMT_HUMAN
Related patient information and medicines
Patient information leaflet
enfermedad de Parkinson
Parkinson's disease is a progressive neurological degeneration of certain cells (called dopaminergic cells) within a specific part of the brain (substantia nigra). The deficiency of dopamine leads to a movement disorder with Parkinson's disease symptoms. Sometimes these medicines are used in combination with levodopa in the later stages of PD..
Medicine leaflet
Tolcapona para la enfermedad de Parkinson
Tolcapone will be recommended for you by a specialist doctor who will continue to check on your progress. You should tell your doctor immed... About tolcapone Type of medicine A dopaminergic medicine called a catechol-O-methyltransferase inhibitor Usado para enfermedad de Parkinson Also called Tasmar® Available as Tablets Parkinson's disease affects the.
Medicine leaflet
Entacapona para la enfermedad de Parkinson
Entacapone will be recommended for you by a specialist doctor who will continue to check on your progress. About entacapone Type of medicine A dopaminergic medicine called a catechol-O-methyltransferase inhibitor Used for Parkinson's disease Also called Comtess®; Combination brands: Stalevo®, Sastravi®, Stanek®, Lecigon® (entacapone with levodopa.
Medicine leaflet
Tioguanina
You will be prescribed tioguanine by a doctor who specialises in cancer treatment. Tioguanine is a treatment used for acute myeloid leukaemia (AML) , acute lymphoblastic leukaemia (ALL) , and chronic myeloid leukaemia (CML). If you have ever been told by a doctor that you lack certain enzymes... In particular, tell your doctor if you know your.
Medicine leaflet
Mercaptopurina
You will be prescribed mercaptopurine by a specialist cancer doctor. About mercaptopurine Type of medicine An antimetabolite anti-cancer medicine Used for Treatment of leukaemia Also called Xaluprine®; Hanixol® Available as Tabl... Mercaptopurine is a treatment used for acute myeloid leukaemia (AML) , acute lymphoblastic leukaemia (ALL) , and.
Lecturas adicionales y referencias
- catechol-O-methyltransferase; MedlinePlus, National Library of Medicine.
- Baker K, Baldeweg T, Sivagnanasundaram S, Scambler P, Skuse D. COMT Val108/158 Met modifies mismatch negativity and cognitive function in 22q11 deletion syndrome. Biol Psychiatry. 2005 Jul 1;58(1):23-31. doi: 10.1016/j.biopsych.2005.03.020.
- Bearden CE, Jawad AF, Lynch DR, Monterossso JR, Sokol S, McDonald-McGinn DM, Saitta SC, Harris SE, Moss E, Wang PP, Zackai E, Emanuel BS, Simon TJ. Effects of COMT genotype on behavioral symptomatology in the 22q11.2 Deletion Syndrome. Child Neuropsychol. 2005 Feb;11(1):109-17. doi: 10.1080/09297040590911239.
- Bearden CE, Jawad AF, Lynch DR, Sokol S, Kanes SJ, McDonald-McGinn DM, Saitta SC, Harris SE, Moss E, Wang PP, Zackai E, Emanuel BS, Simon TJ. Effects of a functional COMT polymorphism on prefrontal cognitive function in patients with 22q11.2 deletion syndrome. Am J Psychiatry. 2004 Sep;161(9):1700-2. doi: 10.1176/appi.ajp.161.9.1700.
- Chen J, Lipska BK, Halim N, Ma QD, Matsumoto M, Melhem S, Kolachana BS, Hyde TM, Herman MM, Apud J, Egan MF, Kleinman JE, Weinberger DR. Functional analysis of genetic variation in catechol-O-methyltransferase (COMT): effects on mRNA, protein, and enzyme activity in postmortem human brain. Am J Hum Genet. 2004 Nov;75(5):807-21. doi: 10.1086/425589. Epub 2004 Sep 27.
- Craddock N, Owen MJ, O'Donovan MC. The catechol-O-methyl transferase (COMT) gene as a candidate for psychiatric phenotypes: evidence and lessons. Mol Psychiatry. 2006 May;11(5):446-58. doi: 10.1038/sj.mp.4001808.
- Fan JB, Zhang CS, Gu NF, Li XW, Sun WW, Wang HY, Feng GY, St Clair D, He L. Catechol-O-methyltransferase gene Val/Met functional polymorphism and risk of schizophrenia: a large-scale association study plus meta-analysis. Biol Psychiatry. 2005 Jan 15;57(2):139-44. doi: 10.1016/j.biopsych.2004.10.018.
- Glaser B, Debbane M, Hinard C, Morris MA, Dahoun SP, Antonarakis SE, Eliez S. No evidence for an effect of COMT Val158Met genotype on executive function in patients with 22q11 deletion syndrome. Am J Psychiatry. 2006 Mar;163(3):537-9. doi: 10.1176/appi.ajp.163.3.537.
- Glatt SJ, Faraone SV, Tsuang MT. Association between a functional catechol O-methyltransferase gene polymorphism and schizophrenia: meta-analysis of case-control and family-based studies. Am J Psychiatry. 2003 Mar;160(3):469-76. doi: 10.1176/appi.ajp.160.3.469.
- Gothelf D, Eliez S, Thompson T, Hinard C, Penniman L, Feinstein C, Kwon H, Jin S, Jo B, Antonarakis SE, Morris MA, Reiss AL. COMT genotype predicts longitudinal cognitive decline and psychosis in 22q11.2 deletion syndrome. Nat Neurosci. 2005 Nov;8(11):1500-2. doi: 10.1038/nn1572. Epub 2005 Oct 23.
- Harrison PJ, Weinberger DR. Schizophrenia genes, gene expression, and neuropathology: on the matter of their convergence. Mol Psychiatry. 2005 Jan;10(1):40-68; image 5. doi: 10.1038/sj.mp.4001558.
- Meyer-Lindenberg A, Nichols T, Callicott JH, Ding J, Kolachana B, Buckholtz J, Mattay VS, Egan M, Weinberger DR. Impact of complex genetic variation in COMT on human brain function. Mol Psychiatry. 2006 Sep;11(9):867-77, 797. doi: 10.1038/sj.mp.4001860. Epub 2006 Jun 20.
- Mikolajczyk E, Smiarowska M, Grzywacz A, Samochowiec J. Association of eating disorders with catechol-o-methyltransferase gene functional polymorphism. Neuropsychobiology. 2006;54(1):82-6. doi: 10.1159/000096043. Epub 2006 Oct 5.
- Savitz J, Solms M, Ramesar R. The molecular genetics of cognition: dopamine, COMT and BDNF. Genes Brain Behav. 2006 Jun;5(4):311-28. doi: 10.1111/j.1601-183X.2005.00163.x.
- Shashi V, Keshavan MS, Howard TD, Berry MN, Basehore MJ, Lewandowski E, Kwapil TR. Cognitive correlates of a functional COMT polymorphism in children with 22q11.2 deletion syndrome. Clin Genet. 2006 Mar;69(3):234-8. doi: 10.1111/j.1399-0004.2006.00569.x.
- Shifman S, Bronstein M, Sternfeld M, Pisante A, Weizman A, Reznik I, Spivak B, Grisaru N, Karp L, Schiffer R, Kotler M, Strous RD, Swartz-Vanetik M, Knobler HY, Shinar E, Yakir B, Zak NB, Darvasi A. COMT: a common susceptibility gene in bipolar disorder and schizophrenia. Am J Med Genet B Neuropsychiatr Genet. 2004 Jul 1;128B(1):61-4. doi: 10.1002/ajmg.b.30032.
- Simon TJ, Bish JP, Bearden CE, Ding L, Ferrante S, Nguyen V, Gee JC, McDonald-McGinn DM, Zackai EH, Emanuel BS. A multilevel analysis of cognitive dysfunction and psychopathology associated with chromosome 22q11.2 deletion syndrome in children. Dev Psychopathol. 2005 Summer;17(3):753-84. doi: 10.1017/S0954579405050364.
- Williams HJ, Glaser B, Williams NM, Norton N, Zammit S, MacGregor S, Kirov GK, Owen MJ, O'Donovan MC. No association between schizophrenia and polymorphisms in COMT in two large samples. Am J Psychiatry. 2005 Sep;162(9):1736-8. doi: 10.1176/appi.ajp.162.9.1736.
Únete a la conversación
Comparte tus pensamientos o experiencias con otros en nuestro comunidades de pacientes.
Pregunta, comparte, conecta.
Navega por discusiones, haz preguntas y comparte experiencias en cientos de temas de salud.
Suscríbete al boletín de Patient
Tu dosis semanal de consejos de salud claros y confiables, escritos para ayudarte a sentirte informado, seguro y en control.
Al suscribirte aceptas nuestros Política de Privacidad. Puedes darte de baja en cualquier momento. Nunca vendemos tus datos.