IL6R rs2302763: Understanding Your Genetic Inflammatory Marker
The rs2302763 variant is a common genetic polymorphism located within the IL6R gene, which encodes a key component of the interleukin-6 receptor complex. This variant is statistically associated with variations in levels of soluble interleukin-6 receptor and C-reactive protein, both of which are important markers of the body's inflammatory response.
What each genotype means
Typical inflammatory marker profile
This genotype is associated with baseline levels of soluble interleukin-6 receptor and C-reactive protein. Research indicates that this variant influences the inflammatory response, though individual health outcomes are complex and depend on many genetic and environmental factors.
This is a common genotype found across diverse global populations.
Typical inflammatory marker profile
Carrying one copy of each allele is associated with typical regulation of the interleukin-6 receptor pathway. As with the homozygous state, this variant contributes to the modulation of inflammatory markers, but it does not indicate a specific disease state.
This heterozygous genotype is frequently observed in most human populations.
Typical inflammatory marker profile
This genotype is associated with baseline levels of soluble interleukin-6 receptor and C-reactive protein. Current evidence classifies this variant as non-pathogenic, meaning it is considered a normal variation in the human genome rather than a cause of disease.
This genotype is common, with the T allele appearing at a frequency of approximately 17% in many studied populations.
What is the rs2302763 Variant?
The rs2302763 variant is a single nucleotide polymorphism (SNP) situated within the IL6R gene. In genetics, a SNP represents a variation at a single position in the DNA sequence among individuals. This specific variant is categorized as a functional polymorphism, meaning it may influence how the gene functions or how much of its associated protein is produced. Because it is located in a region that influences the expression or structure of the interleukin-6 receptor, researchers study it to understand how subtle genetic differences contribute to the diversity of human immune responses. It is not a mutation that causes a disease on its own, but rather a common variation that helps explain why individuals may have different baseline levels of inflammatory markers in their blood.
The Role of the IL6R Gene
The IL6R gene provides instructions for creating the alpha subunit of the interleukin-6 (IL-6) receptor. IL-6 is a cytokine, a type of signaling protein that plays a critical role in regulating immune responses, cell growth, and differentiation. The receptor exists in two forms: a membrane-bound form on the surface of cells and a soluble form that circulates in the blood. The membrane-bound receptor is essential for 'classic' signaling, which is vital for liver function and immune cell activity. The soluble form allows IL-6 to signal to cells that might not otherwise have the receptor, a process known as trans-signaling. By modulating these pathways, the IL6R gene helps the body balance its response to infection, injury, and chronic inflammation.
Research and Evidence Strength
Scientific research has identified a moderate association between the rs2302763 variant and levels of circulating inflammatory markers, specifically C-reactive protein (CRP) and soluble IL-6 receptor levels. Studies in the GWAS Catalog and other genomic databases have highlighted this variant as a significant marker in studies of inflammatory traits. While the evidence is considered moderate, it is important to note that genetic associations are statistical in nature and do not imply a direct cause-and-effect relationship for any individual. Furthermore, the impact of this variant can be influenced by other genetic factors and environmental variables. Research into IL6R variants is ongoing, particularly regarding how they relate to cardiovascular health and immune system function, though findings are often complex and context-dependent.
Interpreting Your Genetic Information
Information about the rs2302763 variant is intended for educational purposes and should not be used for medical diagnosis or to guide treatment decisions. Genetic variants are only one piece of a much larger puzzle that includes your lifestyle, diet, environment, and overall medical history. If you are concerned about inflammatory markers or your immune health, it is essential to consult with a qualified healthcare provider. They can order appropriate clinical tests, such as a blood test for CRP, which provides a direct measurement of your current health status rather than a genetic prediction. Never make changes to your medication or health regimen based on genetic data without first discussing it with your doctor or a licensed pharmacist.
How common is this variant?
The rs2302763 variant is considered a common polymorphism, with its specific allele frequencies varying across different ancestral populations as documented in large-scale genomic databases.
Frequently asked questions
Is rs2302763 a disease-causing mutation?
No, rs2302763 is a common genetic variant, not a disease-causing mutation. It is associated with variations in inflammatory markers, but it does not guarantee the development of any specific health condition.
Can I use this SNP to predict my risk of inflammation?
Genetic variants like rs2302763 provide only a small amount of information regarding your health. Clinical markers, such as blood tests for C-reactive protein, are much more accurate for assessing your current inflammatory status.
Does this variant affect how I should take medication?
There is no standard clinical guidance for using this variant to adjust medication. Always consult your doctor or pharmacist before making any changes to your prescribed treatments.
Where can I find more information about IL6R?
You can find reliable information about the IL6R gene and its functions on resources like MedlinePlus Genetics and the NCBI Gene database. These sites provide comprehensive summaries of gene function and associated research.
Sources & further reading
Educational information only, last refreshed 9/27/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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A functional missense variant (p.Asp358Ala) in the IL6R gene associated with increased levels of soluble IL-6 receptor and modulation of inflammatory responses.
Synonymous polymorphism in IL6R often studied in the context of inflammatory signaling; however, the primary functional variant in this gene is rs2228145 (Asp358Ala).
An intronic variant in the IL6R gene associated with systemic inflammatory signaling, reduced risk of certain cardiovascular conditions, and parental lifespan.
This SNP is associated with variations in C-reactive protein (CRP) levels and is considered a marker for systemic inflammation and cardiovascular risk.
This variant is associated with soluble IL-6 receptor levels and is linked to inflammatory markers and cardiovascular disease risk.
Functional missense variant (p.Asp358Ala) that enhances proteolytic shedding of IL-6R to elevate soluble receptor levels while dampening classical IL-6 inflammatory signaling, conferring protection against coronary heart disease.