COMT rs1167765: Understanding This Genetic Variant
The rs1167765 variant is a common genetic change located within the COMT gene, which provides instructions for an enzyme that breaks down neurotransmitters. Researchers frequently study this variant for its potential associations with pain sensitivity and various neuropsychiatric endophenotypes.
What each genotype means
Common COMT variant
This genotype represents one of the common configurations for this intronic marker in the COMT gene. Research indicates that this variant is often studied alongside functional changes in the COMT enzyme, which plays a role in processing neurotransmitters like dopamine and may influence pain sensitivity or neuropsychiatric traits. Because evidence for this specific marker is limited, it should be viewed as a piece of a much larger genetic and environmental puzzle rather than a direct predictor of health outcomes.
This genotype is common worldwide, with the minor allele frequency for this variant typically ranging between 40% and 48% across major continental populations.
Common COMT variant
This genotype represents one of the common configurations for this intronic marker in the COMT gene. Research indicates that this variant is often studied alongside functional changes in the COMT enzyme, which plays a role in processing neurotransmitters like dopamine and may influence pain sensitivity or neuropsychiatric traits. Because evidence for this specific marker is limited, it should be viewed as a piece of a much larger genetic and environmental puzzle rather than a direct predictor of health outcomes.
This genotype is common worldwide, with the minor allele frequency for this variant typically ranging between 40% and 48% across major continental populations.
Common COMT variant
This genotype represents one of the common configurations for this intronic marker in the COMT gene. Research indicates that this variant is often studied alongside functional changes in the COMT enzyme, which plays a role in processing neurotransmitters like dopamine and may influence pain sensitivity or neuropsychiatric traits. Because evidence for this specific marker is limited, it should be viewed as a piece of a much larger genetic and environmental puzzle rather than a direct predictor of health outcomes.
This genotype is common worldwide, with the minor allele frequency for this variant typically ranging between 40% and 48% across major continental populations.
What is rs1167765?
The rs1167765 variant is a single nucleotide polymorphism (SNP) located in the intronic region of the COMT gene. In genetics, an intronic SNP sits within a non-coding section of the gene, meaning it does not directly alter the sequence of the protein produced. However, such variants are often studied because they may be in linkage disequilibrium with other functional changes. This means that rs1167765 is often inherited alongside other variations that might influence how the COMT gene is regulated or expressed. Because it acts as a 'tag' for these nearby genetic patterns, scientists use it to investigate how inherited differences in the COMT gene might correlate with specific human traits or behaviors.
The Role of the COMT Gene
The COMT gene encodes the catechol-O-methyltransferase enzyme. This enzyme plays a critical role in the nervous system by breaking down catecholamine neurotransmitters, such as dopamine, epinephrine, and norepinephrine, after they have performed their signaling duties in the synaptic cleft. By clearing these chemicals, the COMT enzyme helps regulate the intensity and duration of nerve cell signaling. Because dopamine and other catecholamines are essential for mood regulation, cognitive function, and the processing of pain signals, the activity level of the COMT enzyme is a subject of intense scientific interest. Variations that influence the efficiency or expression of this enzyme are hypothesized to contribute to individual differences in how people respond to stress, pain, and various psychiatric conditions.
Research and Evidence
Research into rs1167765 is primarily focused on its role as a marker in studies of pain perception and neuropsychiatric traits. While some studies have suggested that variations in the COMT gene may influence how individuals experience pain or respond to painful stimuli, the evidence for any single SNP, including rs1167765, remains limited and sometimes inconsistent. Many associations observed in early research have been difficult to replicate across larger, more diverse populations. It is important to note that complex traits like pain sensitivity or psychiatric health are influenced by a vast array of genetic, environmental, and lifestyle factors. Therefore, a single SNP like rs1167765 is unlikely to be a definitive predictor of any specific health outcome or behavior.
Population Frequency
The rs1167765 variant is considered a common genetic marker found worldwide. Across various continental populations, the minor allele frequency typically ranges between 0.40 and 0.48. This high frequency indicates that the variant is widely distributed and present in a large portion of the global population, rather than being restricted to specific ancestral groups.
Interpreting Genetic Information
Understanding your genetic profile can be an educational experience, but it is important to approach this information with caution. Genetic variants like rs1167765 are associated with statistical trends in large groups, not individual medical diagnoses. Because the evidence linking this specific SNP to health outcomes is limited and often debated in the scientific community, it should not be used to make assumptions about your personal health or future risks. If you are concerned about pain management, mental health, or how your body responds to specific medications, you should always consult with a qualified healthcare provider or pharmacist. They can provide personalized guidance based on your clinical history and current medical needs, which is far more reliable than any single genetic marker.
How common is this variant?
The rs1167765 variant is common worldwide, with a minor allele frequency of approximately 0.40–0.48 across major continental groups.
Frequently asked questions
Can I use rs1167765 to predict my pain tolerance?
No. While some research explores the link between COMT variants and pain, the evidence is limited and inconsistent. Pain perception is a complex trait influenced by many genes and environmental factors, and this SNP cannot be used to predict your personal pain tolerance.
Is rs1167765 associated with mental health conditions?
The COMT gene is involved in neurotransmitter regulation, which is relevant to mental health. However, rs1167765 is only a marker, and current evidence does not support using it to diagnose or predict the risk of any psychiatric condition.
What does it mean if I have the AG genotype?
The AG genotype simply means you are heterozygous for this variant, having inherited one allele from each parent. It is a common genetic variation and does not imply any specific health status or medical condition.
Should I change my medication based on this result?
Absolutely not. You should never change your medication or dosing based on genetic test results without consulting your doctor or pharmacist. Only a healthcare professional can determine if a medication is appropriate for your specific clinical needs.
Sources & further reading
Educational information only, last refreshed 9/21/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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Intronic regulatory polymorphism in COMT linked in haplotype studies to altered dopamine turnover and executive function.
Part of the central COMT haploblock regulating catecholamine breakdown and modifying pain sensitivity profiles.
Synonymous variant in COMT in linkage disequilibrium with Val158Met, influencing enzyme stability and pain sensitivity.
Non-coding COMT single nucleotide polymorphism that modulates prefrontal cortical catecholamine degradation and interacts with stress exposure on cognitive performance.
COMT Val158Met ('warrior/worrier') variant affecting dopamine tone and stress resilience.
A synonymous variant in the COMT gene that acts in linkage with Val158Met to influence enzyme stability and pain sensitivity.