rs7731626: Understanding the 5q11.2 Allergic Disease Association
The rs7731626 variant is a single nucleotide polymorphism located in an intergenic region on chromosome 5. It has been identified through large-scale genetic studies as a susceptibility locus associated with an increased risk for various allergic diseases.
What each genotype means
Baseline allergic susceptibility
This genotype represents the common baseline state for this locus. Research indicates that this variant is associated with allergic disease susceptibility, but carrying the baseline alleles does not preclude the development of allergies, which are influenced by many genetic and environmental factors.
This is the most common genotype across most global populations.
Increased allergic susceptibility
Carrying one copy of the risk-associated allele has been identified in multi-ancestry meta-analyses as a susceptibility factor for allergic disease. This association is statistical in nature and does not mean you will develop an allergic condition, as environmental triggers and other genetic factors play a significant role.
The frequency of this heterozygous genotype varies significantly by ancestry, being more common in some populations than others.
Elevated allergic susceptibility
Carrying two copies of the risk-associated allele is associated with a higher statistical likelihood of allergic disease susceptibility compared to the baseline. Because allergic conditions are complex and multifactorial, this result should be viewed as one small piece of your overall health profile rather than a diagnostic indicator.
This genotype is less common than the heterozygous state and its prevalence is highly dependent on ancestral background.
What is rs7731626?
The rs7731626 variant is a specific change in the DNA sequence, known as a single nucleotide polymorphism (SNP), located at the 5q11.2 chromosomal position. In genetics, an intergenic variant is one that sits in the space between genes rather than within the coding sequence of a gene itself. Because it is not located inside a gene, it does not directly alter the structure of a protein. Instead, researchers study such variants to understand how they might influence the regulation of nearby genes or act as markers for other functional changes in the genome. Scientists use these markers to map out regions of the human genome that appear to contribute to complex traits, such as the body's immune response to environmental triggers.
The Role of the 5q11.2 Locus
The 5q11.2 region is a segment of chromosome 5 that has gained attention in recent years due to its involvement in immune system function. While rs7731626 is intergenic, its presence at this specific locus suggests it may be linked to the biological pathways that govern allergic inflammation. Allergic diseases, including asthma, hay fever, and eczema, are complex conditions influenced by both environmental factors and a wide array of genetic contributors. By identifying variants like rs7731626, researchers can begin to narrow down the specific genomic regions that contribute to the development of these conditions. Understanding this locus is part of a broader effort to map the genetic architecture of the immune system and how it varies across different human populations.
Research and Evidence Strength
The association between rs7731626 and allergic disease is supported by moderate evidence derived from multi-ancestry meta-analyses. These studies aggregate data from thousands of individuals to identify statistical correlations between specific DNA markers and health outcomes. While these findings are statistically significant, it is important to note that the presence of this variant does not guarantee the development of an allergic condition. Allergic diseases are polygenic, meaning they are influenced by many different genetic variants, each contributing a small amount to the overall risk. Furthermore, environmental factors play a substantial role in the manifestation of these traits. Current research continues to investigate how this variant interacts with other genetic and environmental variables to influence the risk of allergic disease.
Interpreting Your Genetic Information
It is important to understand that genetic associations are statistical observations made at the population level, not individual medical predictions. Having a specific genotype at the rs7731626 locus does not mean you will develop an allergy, nor does the absence of it mean you are protected. This information is intended for educational purposes to help you understand the current state of genomic research. Because allergic diseases are complex and influenced by many factors, you should never use genetic data to make medical decisions or self-diagnose. If you have concerns about allergies or your immune health, the most appropriate course of action is to consult with a qualified healthcare professional or an allergist who can evaluate your symptoms and medical history in a clinical context.
How common is this variant?
The frequency of the rs7731626 alleles varies significantly across different ancestral groups, reflecting the natural diversity of the human genome. Detailed frequency data can be accessed through public databases like gnomAD.
Frequently asked questions
Does having the rs7731626 variant mean I have an allergy?
No, this variant is only a statistical marker associated with a susceptibility to allergic disease. It is not a diagnostic test, and many people with this variant do not have allergies.
Can I use this information to change my diet or lifestyle?
Genetic associations like this are not sufficient to guide medical or lifestyle changes. You should always consult with a healthcare provider before making significant changes to your health regimen.
Why is this variant called intergenic?
The term intergenic means the variant is located in the DNA sequence between genes. It does not code for a protein directly but may influence how nearby genes are regulated.
Where can I find more information about this SNP?
You can search for rs7731626 on the NCBI dbSNP database or the GWAS Catalog. These resources provide the most up-to-date scientific data regarding this specific genetic marker.
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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