NR3C2 rs17484063: What Your Genotype Means
The rs17484063 variant is a specific genetic change located within the NR3C2 gene, which encodes the mineralocorticoid receptor. Research has identified an association between this variant and an altered risk of spontaneous preterm birth, suggesting a potential link between maternal stress response genetics and pregnancy outcomes.
What each genotype means
Typical mineralocorticoid receptor profile
This genotype represents the most common genetic sequence observed at this location in the NR3C2 gene. Research indicates that this variant is being studied for its potential role in maternal stress response and its association with the risk of spontaneous preterm birth. As this is a complex trait influenced by many factors, this genotype does not indicate a specific medical outcome.
This is the most frequently observed genotype across most global populations.
Altered stress response variant
Carrying one copy of the T allele at this position has been investigated in studies regarding the genetic architecture of spontaneous preterm birth. While this variant is associated with altered mineralocorticoid receptor function in some research contexts, it is not a diagnostic marker. You should discuss any concerns regarding pregnancy health or stress management with your healthcare provider.
This heterozygous genotype is found at varying frequencies depending on ancestral background, appearing in a significant minority of individuals.
Variant stress response profile
This genotype indicates that both copies of the NR3C2 gene carry the T allele at this specific location. Scientific literature has identified this variant as having a potential link to maternal stress response mechanisms and pregnancy outcomes, specifically spontaneous preterm birth. This association is based on statistical population studies and should not be used to predict individual health outcomes.
This homozygous genotype is the least common of the three and its prevalence varies significantly by ancestry.
Understanding the rs17484063 Variant
The rs17484063 variant is a single nucleotide polymorphism (SNP) located on chromosome 4 within the NR3C2 gene. In genetics, a SNP represents a variation at a single position in the DNA sequence among individuals. This specific variant is cataloged in major genomic databases, including dbSNP, and has been the subject of research investigating how subtle differences in our genetic code may influence physiological processes. Because this variant sits within a gene responsible for critical hormonal signaling, scientists study it to understand how it might contribute to individual differences in biological responses, particularly those related to stress and fluid homeostasis.
The Role of the NR3C2 Gene
The NR3C2 gene provides the instructions for building the mineralocorticoid receptor (MR) protein. This receptor acts as a ligand-dependent transcription factor, meaning it binds to specific hormones—such as aldosterone and cortisol—to regulate the expression of various target genes. By doing so, the mineralocorticoid receptor plays a vital role in maintaining the body's salt and water balance, which is essential for blood pressure control. Beyond fluid regulation, the receptor is also involved in the body's broader stress response system. When the function of this receptor is altered, it can impact how the body manages physiological stress, which is why researchers are interested in how variants like rs17484063 might influence health outcomes.
Research and Evidence Strength
The evidence linking rs17484063 to clinical outcomes is currently considered moderate. Published research, such as studies identified in the GWAS Catalog and PubMed, has highlighted an association between this variant and an increased risk of spontaneous preterm birth. The hypothesis is that variations in the mineralocorticoid receptor may affect the maternal stress response during pregnancy, potentially influencing the timing of delivery. However, 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. The field of reproductive genetics is complex, and while this variant is a notable marker, it is likely one of many factors—including environmental and other genetic influences—that contribute to pregnancy outcomes.
Population Frequency and Interpretation
The frequency of the rs17484063 variant varies significantly across different ancestral populations. Genetic databases like gnomAD provide data on how common specific alleles are globally, showing that the distribution of this SNP is not uniform. Because frequency data is ancestry-specific, the prevalence of the C or T alleles may differ depending on an individual's genetic background. When interpreting this information, it is crucial to recognize that having a particular genotype does not constitute a medical diagnosis. Genetic markers are tools for scientific research and population studies rather than clinical diagnostic tests. If you have questions about your health or pregnancy, always consult with a qualified healthcare provider who can interpret your personal health history in the context of current medical standards.
How common is this variant?
The frequency of the rs17484063 variant varies by ancestry, with different populations showing distinct distributions of the C and T alleles.
Frequently asked questions
What is the NR3C2 gene?
The NR3C2 gene encodes the mineralocorticoid receptor, a protein that helps regulate salt and water balance and plays a role in the body's stress response.
Is rs17484063 a diagnostic test for preterm birth?
No, rs17484063 is a genetic variant associated with a statistical risk in research studies. It is not a diagnostic test and cannot predict whether an individual will experience a preterm birth.
Can I change my risk based on this genotype?
Genetic variants are inherited and cannot be changed. However, understanding your health history and discussing risk factors with your doctor is the best way to manage your health.
Where can I find more information on this SNP?
You can find technical data on this variant through resources like the NCBI dbSNP database, the GWAS Catalog, or SNPedia.
Sources & further reading
Educational information only, last refreshed 9/25/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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A polymorphism in the mineralocorticoid receptor gene associated with spontaneous preterm birth, suggesting a genetic influence on stress-related pregnancy complications.
A functional mineralocorticoid receptor variant that influences basal cortisol secretion and physiological reactivity to acute psychological stressors.
An exon variant in the mineralocorticoid receptor gene associated with altered autonomic and neuroendocrine responses to psychological stress challenges.
An exon variant (Ile180Val) in the mineralocorticoid receptor gene that modulates receptor transactivation capacity and influences autonomic reactivity under acute cognitive stress.