ZADH2 rs2639990: What Your Genotype Means
The rs2639990 variant is a single-nucleotide polymorphism located within the ZADH2 gene region. It has been identified through genome-wide association studies as a factor linked to the regulation of circulating vascular endothelial growth factor (VEGF) levels.
What each genotype means
Typical VEGF regulation
This genotype is associated with baseline levels of circulating VEGF as observed in large-scale genome-wide association studies. Research indicates that this variant in the ZADH2 gene contributes to the complex regulation of VEGF, though the clinical significance of this specific genotype remains limited and is not a diagnostic indicator.
This is a common genotype found across diverse populations, though exact frequencies vary by ancestry.
Typical VEGF regulation
Carriers of this genotype show associations with circulating VEGF levels similar to those identified in meta-analyses of European-ancestry cohorts. Because this variant is located in an intronic region of the ZADH2 gene, its influence on phenotypic variability is considered part of a broader, polygenic regulatory network rather than a direct cause of a specific condition.
This heterozygous genotype is observed frequently in global populations.
Typical VEGF regulation
This genotype is one of the variations identified in studies exploring the genetic architecture of circulating VEGF levels. While this locus is statistically linked to VEGF regulation, the evidence is limited, and this genotype does not imply a specific health outcome or medical risk.
This genotype is common, appearing in a significant portion of the population across various ancestral backgrounds.
Understanding rs2639990
The variant rs2639990 is a specific change in the DNA sequence, categorized as a single-nucleotide polymorphism (SNP). It is situated on chromosome 18 within the intronic region of the ZADH2 gene, which stands for zinc binding alcohol dehydrogenase domain containing 2. In the context of human genetics, SNPs are the most common type of genetic variation, representing a difference in a single building block of DNA. While many SNPs have no observable effect on health or physical traits, researchers track them to understand how variations in our genetic code contribute to biological diversity. The rs2639990 variant is particularly noted in scientific literature for its statistical association with the levels of proteins circulating in the blood, specifically VEGF, which plays a critical role in how our bodies grow and maintain blood vessels.
The Role of ZADH2 and VEGF
The ZADH2 gene provides instructions for making a protein that belongs to the alcohol dehydrogenase family. While the exact function of the ZADH2 protein in human physiology is still being explored, its genomic neighborhood is of high interest to researchers studying angiogenesis—the process by which new blood vessels form. The primary association linked to rs2639990 is with vascular endothelial growth factor (VEGF). VEGF is a signaling protein that stimulates the formation of blood vessels and is essential for processes ranging from embryonic development to wound healing. Because VEGF is involved in various physiological and disease processes, including cardiovascular health and cancer, understanding the genetic factors that influence its circulating levels is a significant area of study. Research suggests that the region containing ZADH2 may influence these levels, potentially through complex regulatory mechanisms that affect how VEGF is produced or maintained in the bloodstream.
Evidence and Research Context
The evidence linking rs2639990 to VEGF regulation is derived from large-scale genome-wide association studies (GWAS). These studies compare the DNA of thousands of individuals to identify markers that appear more frequently in people with specific traits or biomarker levels. In a meta-analysis of GWAS data, rs2639990 was identified as a leading variant associated with circulating VEGF levels. It is important to note that the evidence strength for this association is currently considered limited. While the statistical signal is significant within the context of these studies, the biological mechanism—how exactly this specific SNP influences VEGF—remains a subject of ongoing investigation. Furthermore, these findings are often based on specific ancestral cohorts, meaning the association may not be universal across all human populations. As with many genetic associations, this finding represents a piece of a much larger, complex puzzle regarding how our genes interact with our environment to influence our biology.
Population Frequency
The rs2639990 variant is classified as a common SNP, meaning it is found at a relatively high frequency across various human populations. Genetic databases indicate that the different alleles for this variant are widely distributed, though the exact proportions can vary depending on the ancestral background of the population being studied. Because it is a common variant, it is not considered a rare mutation or a disease-causing variant in the traditional sense. Instead, it is viewed as a normal part of human genetic variation that contributes to the natural range of phenotypic differences observed in the population. Researchers use this frequency data to help determine whether an observed association is likely to be a genuine biological signal or a result of chance, ensuring that findings are robust across diverse groups of people.
Interpreting Your Genetic Information
If you encounter information about your rs2639990 genotype, it is important to view it through the lens of current scientific understanding. This variant is a marker for a biological trait—circulating VEGF levels—rather than a diagnostic tool for any specific medical condition. Because the evidence is limited and the biological impact is complex, this information cannot be used to predict health outcomes or diagnose disease. Genetic associations are statistical in nature and do not account for the many other factors, such as lifestyle, diet, and other genetic influences, that determine your overall health. If you have concerns about your cardiovascular health or any other medical issue, you should always consult with a qualified healthcare professional. They can provide context based on your personal medical history and clinical testing, which are far more reliable than individual SNP data for making health-related decisions.
How common is this variant?
The rs2639990 variant is a common SNP, with its various genotypes appearing frequently across diverse human populations.
Frequently asked questions
What does rs2639990 mean for my health?
The rs2639990 variant is a common genetic marker associated with the regulation of VEGF levels in the blood. It is not a diagnostic marker for any disease, and having a specific genotype does not mean you will develop a particular health condition.
Is rs2639990 a disease-causing mutation?
No, rs2639990 is not considered a disease-causing mutation. It is a common single-nucleotide polymorphism that contributes to natural biological variation in the human population.
Should I be concerned about my VEGF levels based on this SNP?
Genetic associations like this are statistical and do not provide a direct measurement of your current VEGF levels. If you have concerns about your health, you should speak with a doctor who can order appropriate clinical tests.
Where can I find more information about ZADH2?
You can find detailed information about the ZADH2 gene and its associated variants through public databases like the NCBI Gene database or the Ensembl genome browser. These resources provide comprehensive data on gene function and known genetic variations.
Sources & further reading
Educational information only, last refreshed 9/14/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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