NR3C1 rs6195: Understanding the N363S Glucocorticoid Receptor Variant
The rs6195 variant, commonly known as N363S, is a genetic change within the NR3C1 gene that encodes the glucocorticoid receptor. This variant is associated with altered sensitivity to glucocorticoids, which are hormones essential for regulating the body's stress response and inflammation.
What each genotype means
Typical glucocorticoid receptor sensitivity
This is the most common genotype observed in the general population. Research indicates that individuals with this profile typically exhibit standard glucocorticoid receptor function, which is essential for regulating stress responses and inflammatory processes. As this is considered the baseline, no specific clinical action is indicated based on this genotype alone.
This is the major homozygous genotype found in the majority of individuals across most global populations.
Potential altered receptor sensitivity
This heterozygous genotype is associated with variations in how the body responds to glucocorticoids, which are hormones involved in stress and inflammation. Some studies suggest that carrying one copy of the variant allele may influence the sensitivity of the glucocorticoid receptor, though the clinical significance of this specific variant remains a subject of ongoing research. If you are prescribed glucocorticoid medications, discuss your treatment goals and any concerns about medication response with your healthcare provider.
This genotype is carried by a significant portion of the population, consistent with the reported 25-35% frequency of less-responsive versions of this gene.
Reduced glucocorticoid receptor sensitivity
This genotype is associated with a reduction in the sensitivity of glucocorticoid receptors, which may require a larger stress signal to activate the body's natural shutdown mechanism for stress responses. While this is a common genetic variation, its impact on daily health can be subtle and varies between individuals. Please consult with your clinician or pharmacist regarding any questions about how this might relate to your health or response to specific medications.
This genotype is observed in a notable subset of the population, contributing to the documented frequency of reduced-sensitivity variants in the NR3C1 gene.
What is the rs6195 Variant?
The rs6195 variant, often referred to as N363S (Asn363Ser), is a single nucleotide polymorphism (SNP) located within the NR3C1 gene on chromosome 5. In this specific genetic location, the common DNA sequence contains an adenine (A) base, while the variant form contains a guanine (G) base. This change results in an amino acid substitution in the glucocorticoid receptor protein, where asparagine is replaced by serine at position 363. Because this protein is a critical component of the body's endocrine system, researchers have long studied how this structural change might influence the receptor's ability to bind to hormones and trigger downstream cellular signals. It is important to note that rs6195 has been merged into the identifier rs56149945 in some databases, reflecting ongoing updates in genomic mapping and nomenclature.
The Role of the NR3C1 Gene
The NR3C1 gene provides instructions for creating the glucocorticoid receptor, a protein that acts as a transcription factor. When glucocorticoid hormones—such as cortisol—bind to this receptor in the cytoplasm, the complex moves into the cell nucleus. Once inside, it binds to specific DNA sequences to turn genes on or off, effectively regulating processes like metabolism, immune function, and the body's response to stress. The receptor is a key player in the hypothalamic-pituitary-adrenal (HPA) axis, which acts as a feedback loop to maintain hormonal balance. Because the receptor is involved in so many physiological pathways, variations in the NR3C1 gene can theoretically influence how an individual responds to both internal stress signals and external medical treatments involving synthetic glucocorticoids.
Research Associations and Evidence
Scientific literature has investigated the N363S variant for its potential impact on glucocorticoid sensitivity. Some studies have suggested that individuals carrying the G allele may exhibit increased sensitivity to glucocorticoids, which could influence physiological responses to stress. Other research has explored potential associations between this variant and various health markers, including body mass index (BMI) and cardiovascular health indicators. However, the evidence strength for these associations is considered moderate. It is crucial to understand that genetic associations are statistical in nature and do not imply a direct cause-and-effect relationship for any individual. Many factors, including environment, lifestyle, and other genetic variants, contribute to complex traits like stress response and metabolic health. Consequently, findings from different studies can sometimes be mixed or vary across different populations.
Population Frequency
The rs6195 variant is relatively common in human populations. Depending on the specific ancestral background, the frequency of the G allele varies, but it is generally present in a significant portion of the population. Estimates suggest that approximately 25-35% of individuals carry at least one copy of the less-common version of this variant. Because it is a common polymorphism, it is considered a normal part of human genetic diversity rather than a rare, pathogenic mutation. Large-scale genomic databases like gnomAD provide detailed frequency data across diverse global populations, which helps researchers understand how the distribution of this variant differs geographically. This widespread prevalence underscores the importance of studying such variants to better understand the range of normal human physiological variation.
Interpreting Your Genetic Information
If you have information about your rs6195 genotype, it is important to view it as one small piece of a much larger biological puzzle. Genetic variants do not determine your health outcomes in isolation; they interact with your environment and your overall genetic background. You cannot use this information to diagnose a condition or predict a specific health outcome. If you are concerned about how your body responds to stress or if you are currently taking medications that involve glucocorticoids, such as corticosteroids for inflammation or asthma, you should discuss this with your healthcare provider or pharmacist. They are the only ones qualified to interpret your medical history in the context of your genetic information and provide appropriate guidance regarding your treatment plan or health management.
How common is this variant?
The rs6195 variant is common, with approximately 25-35% of people carrying at least one copy of the less-responsive version across various populations.
Frequently asked questions
Is rs6195 a disease-causing mutation?
No, rs6195 is a common genetic polymorphism, not a rare disease-causing mutation. It represents normal human genetic variation that may influence how the body processes glucocorticoids.
Does this variant mean I have a stress disorder?
No, having a specific genotype for rs6195 does not diagnose you with a stress disorder or any other medical condition. Genetic associations are statistical and do not account for the many other factors that influence health.
Should I change my medication based on this result?
You should never change your medication based on genetic test results without consulting your doctor. Always speak with your clinician or pharmacist before making any adjustments to prescribed treatments.
Where can I find more information about my specific genotype?
You can look up your specific rsID in public databases like dbSNP or ClinVar for technical details. For personal health context, always consult a qualified healthcare professional who can review your full medical history.
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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Intronic variant within the glucocorticoid receptor gene NR3C1 modulating feedback inhibition of the HPA axis and baseline stress resilience.
Known as R23K, this variant diminishes glucocorticoid receptor function, leading to relative glucocorticoid resistance and altered cortisol awakening response.
A variant in the glucocorticoid receptor gene associated with individual differences in transcriptional responses to stress.
This rare variant is located in the glucocorticoid receptor gene, which is central to the hypothalamic-pituitary-adrenal (HPA) axis and the physiological stress response.
Located in the glucocorticoid receptor gene (BclI polymorphism), this variant alters sensitivity of the hypothalamic-pituitary-adrenal axis and is associated with heightened cortisol suppression and altered physiological stress responses.
A promoter variant of the glucocorticoid receptor gene that modulates cortisol feedback sensitivity during acute stress challenge tests.