NR3C2 Gene
Nuclear Receptor Subfamily 3 Group C Member 2 (Mineralocorticoid Receptor) (NR3C2) is a gene involved in aldosterone / mineralocorticoid signaling that has been studied in relation to immune function, metabolism, and chronic illness. Variants in NR3C2 may influence how the body responds to infection, inflammation, and long-term recovery.
This page is for educational and informational purposes only. Not a diagnostic tool. Always consult a qualified healthcare provider.
What is the NR3C2 gene?
NR3C2 encodes nuclear receptor subfamily 3 group c member 2 (mineralocorticoid receptor), a protein involved in aldosterone / mineralocorticoid signaling. It belongs to the Cardiovascular category and is part of the Autonomic Nervous System biological cluster. NR3C2 encodes the mineralocorticoid receptor (MR), which mediates the effects of aldosterone on sodium retention and potassium secretion in the kidney.
Biological role and pathway
NR3C2 is involved in the aldosterone / mineralocorticoid signaling pathway, which plays a central role in regulating physiological processes relevant to immune defence, cellular energy, and systemic homeostasis. Genes within the Autonomic Nervous System cluster work together to maintain balanced function across interconnected biological systems.
Variants in genes within this pathway may influence an individual's predisposition to altered function in these systems — particularly under conditions of physiological stress such as viral infection or prolonged illness.
NR3C2 and Long COVID / ME-CFS research
Mineralocorticoid receptor signaling affects fluid balance and blood pressure; NR3C2 variants may contribute to dysautonomia and orthostatic intolerance in Long COVID.
This information is based on published research and does not constitute medical advice. See references below.
Known genetic variants
The following variants (SNPs) in the NR3C2 gene have been studied in relation to cardiovascular and chronic illness. Each variant represents a single nucleotide position where individuals may carry different alleles.
Conditions studied in relation to NR3C2
Research into NR3C2 variants has explored associations with the following conditions. These are areas of scientific investigation and do not imply that NR3C2 causes or treats any condition.
Genetic insights from DNA data
Consumer DNA files from 23andMe, AncestryDNA, and MyHeritage contain raw SNP data. When you upload your file to ChronicDNA, the analysis engine checks your genotype against a curated panel of 80+ genes selected for their relevance to Long COVID, ME/CFS, and connected biological pathways - some of which may include NR3C2 and related genes in the autonomic nervous system pathway.
The report is educational - it explains which variants you carry, what the research says about them, and how they fit into the biological pathways most relevant to chronic illness. Results are presented in plain English with appropriate scientific context, no medical jargon, no scare tactics. All results should be discussed with a qualified healthcare provider.
Related genes in the Autonomic Nervous System pathway
NR3C2 does not act in isolation. The following genes are functionally related and may be analysed together for a more complete picture of your genetic predispositions.
Frequently asked questions
What is the NR3C2 gene and what does it do?
NR3C2 (Nuclear Receptor Subfamily 3 Group C Member 2 (Mineralocorticoid Receptor)) is involved in aldosterone / mineralocorticoid signaling. NR3C2 encodes the mineralocorticoid receptor (MR), which mediates the effects of aldosterone on sodium retention and potassium secretion in the kidney.
How may NR3C2 gene variants relate to Long COVID or ME/CFS?
Mineralocorticoid receptor signaling affects fluid balance and blood pressure; NR3C2 variants may contribute to dysautonomia and orthostatic intolerance in Long COVID.
Can a DNA test reveal information about my NR3C2 gene?
Consumer DNA data from 23andMe, AncestryDNA, and MyHeritage includes SNP variants for many genes. ChronicDNA analyses your raw DNA file and reports on variants that have been studied in relation to chronic illness, immune function, and metabolism. This is not a diagnostic service — results are informational and educational only.
Explore your NR3C2 genetic insights
Upload your DNA data from 23andMe, AncestryDNA, or MyHeritage and receive a personalised report covering >80 genes relevant to Long COVID and ME/CFS.
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References
The following publications were used in compiling the research context for NR3C2. This is not an exhaustive literature review.
- [1]PMID: 32966261
- [2]Nature Genetics
- [3]Hypertension