LRRC32 rs7936434: Understanding Your Genetic Allergy Risk
The rs7936434 variant is a genetic marker located on chromosome 11 near the LRRC32 gene. It has been identified through genome-wide association studies as being linked to an increased risk for various allergic conditions, including food allergy, atopic dermatitis, and allergic rhinitis.
What each genotype means
Baseline risk profile
This genotype represents the more common version of this genetic marker in many populations. Research indicates that individuals without the risk-associated allele at this location may have a lower statistical likelihood of developing certain allergic conditions, such as food allergy, compared to those who carry the risk allele. This association is based on population-level data and does not predict individual health outcomes.
Carried by approximately 42% of individuals of European ancestry.
Increased allergy risk marker
Carrying one copy of this variant is associated with a statistically higher risk for allergic conditions, including food allergy, atopic dermatitis, and allergic rhinitis. This variant is located in an intergenic region near the LRRC32 gene, which is involved in immune regulation. These findings reflect broad population trends and are not a diagnostic indicator of personal health.
Carried by approximately 45% of individuals of European ancestry.
Elevated allergy risk marker
Carrying two copies of this variant is associated with the highest statistical risk for allergic conditions, such as food allergy, within the context of this specific genetic marker. The variant is linked to immune system pathways that influence allergic sensitivity. As this is a complex trait influenced by many genetic and environmental factors, this result should be viewed as a general risk association rather than a medical diagnosis.
Carried by approximately 13% of individuals of European ancestry.
What is the rs7936434 Variant?
The rs7936434 variant is a single nucleotide polymorphism (SNP) located in an intergenic region on chromosome 11q13.5. In genetics, a SNP represents a variation at a single position in the DNA sequence among individuals. This specific location is of interest to researchers because it sits in a genomic neighborhood associated with immune system regulation. While the variant itself does not necessarily change the structure of a protein, it serves as a 'tag' or marker that researchers use to identify nearby genetic regions that may influence how the body responds to allergens. Because it is located in a non-coding region, its primary role is thought to be regulatory, potentially influencing how genes in the vicinity are turned on or off in response to environmental triggers.
The Role of the LRRC32 Gene
The rs7936434 variant is often studied in the context of the nearby LRRC32 gene. This gene encodes a protein known as GARP (Glycoprotein A Repetitions Predominant). GARP is a transmembrane protein that plays a critical role in the function of regulatory T-cells, which are essential for maintaining immune tolerance and preventing the immune system from overreacting to harmless substances. By regulating the activation of TGF-beta, a signaling molecule that controls cell growth and immune suppression, the LRRC32 gene helps maintain the balance of the immune response. Variations in or near this gene may influence the efficiency of these regulatory processes, which is why researchers investigate this region when studying the genetic architecture of complex allergic diseases.
Research and Evidence Strength
The association between the 11q13.5 region and allergic traits is supported by strong evidence from multiple genome-wide association studies (GWAS). Researchers have consistently observed that variations in this area correlate with susceptibility to atopic dermatitis, allergic rhinitis, and food allergies. These studies use large cohorts to compare the DNA of individuals with allergic conditions against those without, identifying statistical patterns that reach genome-wide significance. While the evidence for an association is strong, it is important to note that these findings represent statistical correlations across populations rather than direct causation for any single individual. Allergic diseases are complex and polygenic, meaning they are influenced by many different genetic variants working in concert with environmental factors, such as diet, lifestyle, and exposure to allergens.
Population Frequency
Genetic variants are not distributed equally across all human populations. For rs7936434, the minor allele frequency is approximately 0.35 in European populations. This means that a significant portion of the population carries at least one copy of the variant allele. Because frequency can vary significantly based on ancestral background, researchers emphasize the importance of studying diverse groups to ensure that genetic findings are applicable across different ethnicities. Understanding these frequency differences helps scientists refine their models of how genetic risk factors contribute to disease prevalence in various parts of the world.
What This Information Means for You
Learning about a genetic variant like rs7936434 can provide insight into the biological pathways that may contribute to allergic traits, but it is not a diagnostic tool. Because allergic conditions are influenced by a combination of many genes and environmental triggers, knowing your genotype at this location cannot predict whether you will develop an allergy. This information is intended for educational purposes to help you understand the current state of genomic research. If you have concerns about allergies or your health, it is essential to consult with a qualified healthcare professional or an allergist. They can provide personalized medical advice, conduct appropriate clinical testing, and help you manage your health based on your specific symptoms and medical history rather than genetic markers alone.
How common is this variant?
The minor allele frequency for rs7936434 is approximately 0.35 in European populations, making it a relatively common variant.
Frequently asked questions
Does having the rs7936434 variant mean I will have allergies?
No. This variant is a statistical marker associated with an increased risk of allergic conditions, but it does not guarantee that you will develop an allergy. Allergic diseases are complex and result from a combination of many genetic and environmental factors.
Can I use this information to diagnose an allergy?
No. Genetic variants are not used for the clinical diagnosis of allergies. If you suspect you have an allergy, you should see an allergist or healthcare provider for standard clinical testing, such as skin prick tests or blood tests.
Is this variant specific to one type of allergy?
Research has linked this region to several allergic phenotypes, including food allergy, atopic dermatitis, and allergic rhinitis. It is considered a general risk factor for atopic (allergic) conditions rather than being specific to just one.
How do I find out my genotype for rs7936434?
Your genotype for this SNP may be included in data provided by direct-to-consumer genetic testing services. You can check your raw data files for the rsID 'rs7936434' to see your specific allele pair.
Sources & further reading
Educational information only, last refreshed 9/30/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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