INAVA rs296520: What Your Genotype Means
The rs296520 variant is a missense genetic change located within the INAVA gene. Recent genome-wide association studies have linked this variant to an increased risk of anterior uveitis and other immune-mediated inflammatory conditions.
What each genotype means
Typical INAVA variant profile
This genotype represents the homozygous state for the variant rs296520. Research indicates this variant is associated with susceptibility to anterior uveitis, an inflammatory eye condition, though the presence of this genotype does not guarantee the development of the condition. It is important to remember that complex traits like uveitis are influenced by many genetic and environmental factors.
This genotype is commonly observed in global populations, though exact frequencies vary significantly by ancestral background.
Typical INAVA variant profile
This genotype represents the heterozygous state for the variant rs296520. Research indicates this variant is associated with susceptibility to anterior uveitis, an inflammatory eye condition, though the presence of this genotype does not guarantee the development of the condition. It is important to remember that complex traits like uveitis are influenced by many genetic and environmental factors.
This genotype is commonly observed in global populations, though exact frequencies vary significantly by ancestral background.
Typical INAVA variant profile
This genotype represents the homozygous state for the variant rs296520. Research indicates this variant is associated with susceptibility to anterior uveitis, an inflammatory eye condition, though the presence of this genotype does not guarantee the development of the condition. It is important to remember that complex traits like uveitis are influenced by many genetic and environmental factors.
This genotype is commonly observed in global populations, though exact frequencies vary significantly by ancestral background.
Understanding the rs296520 Variant
The rs296520 variant is a single nucleotide polymorphism (SNP) situated within the INAVA gene on the long arm of human chromosome 1. In genetics, a missense variant means that the change in the DNA sequence results in a different amino acid being incorporated into the protein structure, which can potentially alter the protein's function. This specific SNP has gained attention in the scientific community because it is in linkage disequilibrium with other markers identified in large-scale genetic studies. Linkage disequilibrium refers to the non-random association of alleles at different loci in a given population, meaning that rs296520 is often inherited alongside other nearby genetic variations. Researchers use these patterns to pinpoint regions of the genome that may contribute to complex traits, particularly those involving the immune system.
The Role of the INAVA Gene
The INAVA gene, also known as innate immunity activator or C1orf106, encodes a protein that plays a critical role in the body's innate immune response. Research indicates that the INAVA protein is involved in signaling pathways that help the body recognize and respond to pathogens, such as bacteria. It is highly expressed in tissues like the intestinal mucosa, suggesting it is vital for maintaining barrier integrity and regulating inflammation in the gut. Because of its function in modulating cytokine production and responding to microbial components, variations in this gene are hypothesized to influence how an individual's immune system reacts to environmental triggers. When this regulation is disrupted, it may contribute to chronic inflammatory states, which is why the gene is a subject of intense study in the context of autoimmune and inflammatory diseases.
Research and Clinical Associations
Evidence for the association between rs296520 and immune-related conditions is considered moderate but significant. A large-scale genome-wide association study (GWAS) meta-analysis involving over 12,000 anterior uveitis cases identified the INAVA locus as a novel, genome-wide significant factor for this condition. Anterior uveitis is an inflammatory eye disease that often co-occurs with other systemic autoimmune disorders. Furthermore, phenome-wide association studies have linked this variant and its associated genetic region to other conditions, including inflammatory bowel disease (IBD) and ankylosing spondylitis. While these statistical associations are robust, they represent population-level trends rather than individual diagnostic markers. The presence of this variant does not guarantee the development of any disease, as complex traits are influenced by a combination of multiple genetic factors, environmental exposures, and lifestyle variables.
Population Frequency and Interpretation
The frequency of the rs296520 variant varies across different ancestral populations, a common feature of genetic markers identified in GWAS. In studies involving European cohorts, such as those from the FinnGen, Estonian Biobank, and UK Biobank, researchers have tracked the prevalence of the alleles associated with this locus. Because this variant is frequently reported in studies of immune-related conditions, it is a subject of ongoing investigation to determine how its frequency correlates with disease prevalence across diverse global populations. It is important to note that genetic data should be interpreted with caution. Having a specific genotype does not constitute a medical diagnosis. If you are concerned about your risk for inflammatory conditions or eye health, you should consult with a qualified healthcare professional who can evaluate your personal and family medical history.
How common is this variant?
The frequency of the rs296520 variant is commonly reported in large-scale GWAS studies, with specific allele frequencies varying significantly across different ancestral backgrounds.
Frequently asked questions
What is the INAVA gene?
INAVA stands for innate immunity activator. It is a gene that produces a protein involved in the body's immune response and is particularly important for maintaining health in the gut and other mucosal tissues.
Does having the rs296520 variant mean I will get uveitis?
No. Genetic associations identified in studies indicate a statistical correlation with a higher risk at a population level. It does not mean that an individual with the variant will definitely develop the condition.
What is anterior uveitis?
Anterior uveitis is an inflammatory condition affecting the iris and the ciliary body of the eye. It is often associated with systemic immune-mediated diseases.
Can I use this information to diagnose myself?
No. Genetic information from research studies is for educational purposes only. You should never use it to diagnose yourself or make medical decisions without consulting a doctor.
Sources & further reading
Educational information only, last refreshed 9/25/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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