OXTR rs237887: Understanding This Social Behavior Variant
The rs237887 variant is a single-nucleotide polymorphism located within the OXTR gene, which encodes the oxytocin receptor. Research has explored its potential associations with social recognition skills, stress buffering, and various behavioral traits.
What each genotype means
Typical OXTR variant profile
This genotype is one of the common variations in the OXTR gene. Research has explored associations between this variant and social recognition skills or stress responses, though findings are often mixed and depend on specific study populations. It is not a diagnostic marker for any condition.
This genotype is common, occurring in a significant portion of the population alongside the A/G and G/G genotypes.
Typical OXTR variant profile
This genotype represents a heterozygous state for the OXTR variant. While some studies have investigated links between this genetic region and social behaviors or stress buffering, the evidence remains limited and inconsistent across different groups. This result should not be used to predict individual social or behavioral traits.
This genotype is common, occurring in a significant portion of the population alongside the A/A and G/G genotypes.
Typical OXTR variant profile
This genotype is a common variation within the OXTR gene. While scientific literature has examined potential associations with social recognition and stress-related traits, these findings are not definitive and vary by ancestry. This genotype does not indicate a specific medical or psychological outcome.
This genotype is common, occurring in a significant portion of the population alongside the A/A and A/G genotypes.
What is rs237887?
The rs237887 variant is a specific genetic change, or single-nucleotide polymorphism (SNP), located in the third intron of the OXTR gene on human chromosome 3. An intron is a non-coding region of a gene that is removed during the process of creating a functional protein. While intronic variants do not change the amino acid sequence of the resulting protein, they can influence how much of that protein is produced or when it is expressed in different tissues. Scientists study this specific location because variations here may alter the regulation of the oxytocin receptor, a critical component of the body's neuroendocrine system. Because this variant sits in a regulatory region, researchers investigate whether it contributes to individual differences in how people process social information and respond to their environment.
The Role of the OXTR Gene
The OXTR gene provides instructions for making the oxytocin receptor, a protein that allows cells to respond to the hormone oxytocin. Often referred to as the 'social hormone,' oxytocin plays a significant role in social bonding, emotional regulation, and the body's response to stress. The receptor is found throughout the brain, particularly in areas involved in emotional processing and social cognition, as well as in various peripheral organs. By binding to these receptors, oxytocin helps modulate neurotransmission, influencing how individuals perceive social cues and manage acute psychosocial stress. Because the oxytocin system is central to human social behavior, variations in the gene that encodes its receptor are frequently studied to understand the biological underpinnings of empathy, pair-bonding, and social recognition.
Research and Evidence
Scientific research has examined the association between rs237887 and various behavioral traits, including social recognition skills and responses to social stress. Some studies have suggested that this variant may influence how individuals buffer against acute stress or perform in social cognition tasks. However, the evidence supporting these links is considered limited. Many studies in this field have faced challenges, such as small sample sizes, high variability in study populations, and inconsistent findings across different research groups. While some meta-analyses have identified potential associations with social behaviors or neurodevelopmental conditions, these results are not always replicated in larger or more diverse cohorts. Consequently, while rs237887 remains a subject of interest in behavioral genetics, it is not currently used as a clinical predictor for any specific psychological or social trait.
Population Frequency
The rs237887 variant is relatively common in human populations. Data indicates that the minor allele frequency for this SNP is approximately 0.40 to 0.50 in European and Middle Eastern cohorts. This means that the variant is widely distributed, and a significant portion of the population carries at least one copy of the minor allele.
Interpreting Genetic Information
It is important to understand that genetic variants like rs237887 represent only a tiny fraction of the factors that influence human behavior. Social, environmental, and developmental experiences play a much larger role in shaping personality, empathy, and stress responses than any single SNP. Because the current scientific evidence for this variant is limited and often mixed, it cannot be used to diagnose, predict, or explain individual behavior. Genetic testing for such variants is generally for informational or research purposes only. If you have concerns about your mental health, stress management, or social functioning, these are complex issues that should be discussed with a qualified healthcare professional or mental health counselor. They can provide personalized support based on your unique life circumstances rather than relying on genetic markers.
How common is this variant?
The minor allele frequency for rs237887 is approximately 0.40-0.50 in European and Middle Eastern cohorts, making it a common variant.
Frequently asked questions
Does rs237887 determine my personality?
No. Personality is a complex trait influenced by a vast array of genetic, environmental, and social factors. A single SNP like rs237887 has a negligible impact on overall personality.
Can I use this SNP to predict social skills?
No. While some research has explored associations between this variant and social recognition, the evidence is limited and inconsistent. It is not a reliable tool for predicting individual social abilities.
Is rs237887 linked to autism?
Some studies have investigated potential associations between OXTR variants and autism spectrum disorder. However, these findings are mixed, and the variant is not a diagnostic marker for autism.
Should I be worried if I have the A/A genotype?
No. Having a specific genotype for this variant is a normal part of human genetic diversity. It does not indicate a health condition or a need for medical concern.
Sources & further reading
Educational information only, last refreshed 9/29/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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Non-coding oxytocin receptor polymorphism correlated with autonomic nervous system tone and cortisol response to acute laboratory psychosocial stress.
Intronic variant within the oxytocin receptor gene affecting autonomic stress regulation, emotional reactivity, and psychosocial vulnerability.
Oxytocin receptor gene polymorphism implicated in modulated physiological stress arousal, social stress buffering, and risk of stress-exacerbated behaviors.
Variant in the oxytocin receptor gene associated with social-emotional stress processing.
Variant in the oxytocin receptor gene influencing emotional buffering against social stress and cardiovascular recovery.
A single nucleotide polymorphism in the oxytocin receptor gene investigated for its role in susceptibility to posttraumatic stress disorder.