← Glossary
Gene

COMT

COMT encodes catechol-O-methyltransferase, an enzyme that inactivates catecholamines (dopamine, norepinephrine, epinephrine) and catechol estrogens by methylation, playing an outsized role in clearing dopamine from the prefrontal cortex where dopamine transporter expression is low. The common Val158Met polymorphism (rs4680) alters enzyme activity roughly fourfold, influencing dopamine tone linked to stress reactivity, cognition and pain sensitivity, as well as estrogen-pathway metabolism.

Traits COMT shapes

Markers (rsIDs)

Reference databases

How Biome reads this

Biome's whole-genome test reads this from one saliva sample, alongside all 3.2 billion letters of your DNA.

Biome DNA test

This page is for educational purposes only and is not medical advice. It is not intended to diagnose, treat, cure, or prevent any disease. Genetic results describe tendencies and predispositions, not diagnoses. Always consult a licensed clinician before making decisions about your health, medications, or supplements.