IL7R Gene
Interleukin 7 Receptor (CD127) (IL7R) is a gene involved in T cell homeostasis that has been studied in relation to immune function, metabolism, and chronic illness. Variants in IL7R 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 IL7R gene?
IL7R encodes interleukin 7 receptor (cd127), a protein involved in T cell homeostasis. It belongs to the Immune Signaling category and is part of the Immune System & Inflammation biological cluster. IL7R encodes CD127, the alpha subunit of the IL-7 receptor, essential for T cell development and homeostatic survival.
Biological role and pathway
IL7R is involved in the T cell homeostasis pathway, which plays a central role in regulating physiological processes relevant to immune defence, cellular energy, and systemic homeostasis. Genes within the Immune System & Inflammation 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.
IL7R and Long COVID / ME-CFS research
IL7R variants (particularly rs6897932) affect IL-7 receptor function; reduced CD127 expression on T cells in COVID-19 may impair homeostatic T cell maintenance 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 IL7R gene have been studied in relation to immune signaling and chronic illness. Each variant represents a single nucleotide position where individuals may carry different alleles.
Conditions studied in relation to IL7R
Research into IL7R variants has explored associations with the following conditions. These are areas of scientific investigation and do not imply that IL7R 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 IL7R and related genes in the immune system & inflammation 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 Immune System & Inflammation pathway
IL7R 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 IL7R gene and what does it do?
IL7R (Interleukin 7 Receptor (CD127)) is involved in T cell homeostasis. IL7R encodes CD127, the alpha subunit of the IL-7 receptor, essential for T cell development and homeostatic survival.
How may IL7R gene variants relate to Long COVID or ME/CFS?
IL7R variants (particularly rs6897932) affect IL-7 receptor function; reduced CD127 expression on T cells in COVID-19 may impair homeostatic T cell maintenance in Long COVID.
Can a DNA test reveal information about my IL7R 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 IL7R 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.
Get Your Personalised DNA ReportInformational and educational only · Not a diagnostic tool · GDPR compliant
References
The following publications were used in compiling the research context for IL7R. This is not an exhaustive literature review.
- [1]PMID: 32296168
- [2]Nature Genetics
- [3]NEJM