rs1041973
Variant in the IL1RL1 gene (Interleukin 1 Receptor Like 1 (ST2))
rs1041973 is a single nucleotide polymorphism (SNP) in the IL1RL1 gene, involved in IL-33 receptor signaling. Variants at this position have been studied in relation to immune function, metabolism, and chronic illness.
This page is for educational and informational purposes only. Not a diagnostic tool. Always consult a qualified healthcare provider.
What is the rs1041973 variant?
rs1041973 is a SNP (single nucleotide polymorphism) in the IL1RL1 (Interleukin 1 Receptor Like 1 (ST2)) gene. It belongs to the Immune Signaling category and is part of the Immune System & Inflammation biological cluster. IL1RL1 encodes ST2, the receptor for IL-33, expressed on mast cells, ILC2s, and Th2 cells.
Biological role and pathway
This variant sits within the IL1RL1 gene, which is involved in the IL-33 receptor signaling pathway. 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 — particularly under conditions of physiological stress such as viral infection or prolonged illness.
rs1041973 and Long COVID / ME-CFS research
ST2/IL-33 signaling activates mast cells and drives type-2 inflammatory responses; IL1RL1 variants may influence the mast cell activation and allergic features common in Long COVID.
This information is based on published research and does not constitute medical advice. See references below.
Parent gene: IL1RL1
rs1041973 is one of 3 known variants in the IL1RL1 gene. To understand the full biological context of this variant, explore the parent gene page.
View IL1RL1 gene page →Conditions studied in relation to rs1041973
Research into IL1RL1 variants including rs1041973 has explored associations with the following conditions. These are areas of scientific investigation and do not imply causation.
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 IL1RL1 and the rs1041973 variant.
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.
Other variants in the IL1RL1 gene
The following variants in IL1RL1 are also studied in relation to chronic illness and may be analysed together for a more complete picture.
Frequently asked questions
What is the rs1041973 variant in the IL1RL1 gene?
rs1041973 is a single nucleotide polymorphism (SNP) located in the IL1RL1 (Interleukin 1 Receptor Like 1 (ST2)) gene, which is involved in IL-33 receptor signaling. IL1RL1 encodes ST2, the receptor for IL-33, expressed on mast cells, ILC2s, and Th2 cells.
How may the rs1041973 variant relate to Long COVID or ME/CFS?
ST2/IL-33 signaling activates mast cells and drives type-2 inflammatory responses; IL1RL1 variants may influence the mast cell activation and allergic features common in Long COVID.
Can a consumer DNA test detect the rs1041973 variant?
Many consumer DNA tests such as 23andMe, AncestryDNA, and MyHeritage genotype common SNPs. ChronicDNA analyses your raw DNA file and reports on variants studied in relation to chronic illness, immune function, and metabolism. This is not a diagnostic service — results are informational and educational only.
Find out if you carry the rs1041973 variant
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 IL1RL1 and its variants. This is not an exhaustive literature review.
- [1]PMID: 33398161
- [2]Nature Genetics
- [3]Journal of Allergy and Clinical Immunology