NR3C2 rs28364072: Stress Response and Genetic Variation
The rs28364072 variant is located within the NR3C2 gene, which encodes the mineralocorticoid receptor. This genetic variation is studied for its potential influence on basal cortisol secretion and how the body physiologically reacts to acute psychological stressors.
What each genotype means
Typical mineralocorticoid receptor activity
This genotype represents the most common version of the NR3C2 gene in many populations. Research suggests this version of the mineralocorticoid receptor functions within standard physiological ranges for cortisol secretion and stress reactivity. As this is a complex trait, individual responses to stress are influenced by many genetic and environmental factors.
This is the most common genotype globally, though exact frequencies vary significantly by ancestral background.
Varied stress response profile
Carrying one copy of the G allele may influence how your mineralocorticoid receptors respond to cortisol and acute psychological stress. Studies indicate that this variant can be associated with differences in basal cortisol levels and physiological reactivity, though the evidence remains limited and results can be inconsistent across different studies. Please note that this is not a diagnostic marker and reflects only one small component of your overall stress response system.
Carried by a significant portion of the population, with the minor allele frequency typically ranging between 8% and 14% across diverse ancestries.
Distinct stress response profile
Carrying two copies of the G allele may be associated with altered mineralocorticoid receptor sensitivity compared to the more common A/A genotype. Research into this variant suggests potential differences in how the body regulates cortisol and reacts to acute stress, but these findings are based on limited evidence and may not apply to every individual. This genotype does not determine your health outcomes and should be viewed as one of many factors influencing your physiological stress response.
This is the least common genotype, occurring at a lower frequency than the heterozygous state in most studied populations.
Understanding the rs28364072 Variant
The rs28364072 variant is a single nucleotide polymorphism (SNP) situated within the NR3C2 gene. In genomics, a SNP represents a variation at a single position in the DNA sequence among individuals. The NR3C2 gene is located on chromosome 4 at position 4q31.23. This specific variant is categorized within the context of stress response research. While many variants in the human genome are neutral, researchers investigate SNPs like rs28364072 to determine if they correlate with observable differences in biological processes, such as hormone regulation. Because this variant is located in a gene responsible for critical physiological functions, it has become a subject of interest for scientists studying the HPA axis—the body's primary system for managing stress.
The Role of the NR3C2 Gene
The NR3C2 gene provides the instructions for building the mineralocorticoid receptor (MR). This protein acts as a ligand-dependent transcription factor, meaning it binds to specific hormones—primarily aldosterone and cortisol—to regulate the expression of various target genes. While the MR is famously known for its role in maintaining salt and water balance in the kidneys, it is also expressed in the brain, where it plays a significant role in the feedback regulation of the stress response. By binding to mineralocorticoid response elements in the DNA, the receptor helps the body maintain homeostasis. When the function of this receptor is altered, it can theoretically impact how an individual processes hormonal signals, potentially influencing physiological reactivity to environmental or psychological challenges.
Research Associations and Evidence Strength
Current research into rs28364072 suggests an association with basal cortisol secretion and physiological reactivity to acute psychological stressors. However, the evidence strength for this specific variant remains limited. While studies have linked various NR3C2 polymorphisms to cognitive performance, memory, and stress-induced cortisol reactivity, these findings are often derived from small-scale studies or specific population cohorts. It is important to note that genetic associations are statistical in nature and do not imply a direct cause-and-effect relationship for every individual. Because the stress response is a complex, polygenic trait influenced by both environment and numerous genes, the impact of a single SNP like rs28364072 is typically modest. Further large-scale, longitudinal research is required to confirm the clinical significance of this variant across diverse populations.
Population Frequency
The rs28364072 variant is observed across diverse human ancestries, with a reported minor allele frequency typically ranging between 0.08 and 0.14. This indicates that the variant is relatively common in the general population, rather than being a rare mutation. Because frequency can vary significantly based on ancestral background, these percentages serve as a general guide rather than a universal constant. Understanding the distribution of this variant helps researchers account for population stratification in genetic studies, ensuring that observed associations are not merely artifacts of ancestry. As with many common variants, the presence of the minor allele is a normal part of human genetic diversity and does not inherently indicate a health condition.
Interpreting Your Genetic Information
Information regarding the rs28364072 variant is intended for educational purposes and should not be used for medical diagnosis or to guide personal health decisions. Genetic markers are only one piece of a much larger puzzle that includes lifestyle, environment, and other genetic factors. If you are concerned about your stress levels, hormonal health, or physiological responses to stress, it is essential to consult with a qualified healthcare professional. They can provide context based on your personal medical history and clinical testing. Never use genetic data to alter medication dosages or treatment plans without direct supervision from your clinician or pharmacist. Genetic science is rapidly evolving, and while variants like rs28364072 provide interesting insights into human biology, they are not currently used as standard clinical diagnostic tools.
How common is this variant?
The minor allele frequency for rs28364072 is approximately 0.08–0.14 across diverse human ancestries.
Frequently asked questions
Does having the rs28364072 variant mean I have a stress disorder?
No. This variant is a common genetic marker associated with physiological responses to stress, not a diagnostic tool for stress disorders. Genetic associations are statistical and do not determine your mental or physical health outcomes.
Can I use this information to change my medication?
Absolutely not. You should never change your medication or dosage based on genetic information without consulting your doctor or pharmacist. Only a healthcare professional can safely manage your treatment plan.
Is the NR3C2 gene only involved in stress?
No, the NR3C2 gene is primarily known for its role in regulating salt and water balance in the kidneys. It is also involved in blood pressure control and various other physiological processes.
Where can I find more reliable information on this SNP?
You can search for the rsID on databases like the NCBI SNP database (dbSNP) or the GWAS Catalog. These resources provide peer-reviewed data on genetic variants and their reported associations.
Sources & further reading
Educational information only, last refreshed 9/24/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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Exon variant in the mineralocorticoid receptor gene associated with altered autonomic responses to stress.
An exon variant (Ile180Val) in the mineralocorticoid receptor gene that modulates receptor transactivation capacity and influences autonomic reactivity under acute cognitive stress.
A polymorphism in the mineralocorticoid receptor gene associated with spontaneous preterm birth, suggesting a genetic influence on stress-related pregnancy complications.
This variant in the mineralocorticoid receptor gene is significantly associated with an altered risk of spontaneous preterm birth, potentially linking maternal stress response genetics to pregnancy outcomes.