EGLN3 rs904783837: Understanding This Rare Genetic Variant
The rs904783837 variant is a rare genetic alteration located within the EGLN3 gene. This gene plays a critical role in how cells sense oxygen levels and manage stress responses.
What each genotype means
Typical EGLN3 expression
This is the most common genotype for this variant in the EGLN3 gene. As this variant is extremely rare, carrying the common G allele is considered the standard baseline for cellular oxygen sensing and stress response pathways.
Carried by the vast majority of individuals across all global populations.
Rare variant carrier
You carry one copy of a very rare allele in the EGLN3 gene. Because this variant is so uncommon, there is limited clinical research available to determine if it alters the function of the EGLN3 protein, which normally helps regulate cellular responses to low oxygen and stress.
This genotype is extremely rare, with an estimated allele frequency of approximately 0.0000055.
Rare homozygous variant
You carry two copies of this rare EGLN3 variant. Current scientific literature does not provide specific clinical data on the functional impact of this homozygous genotype, and its rarity means that its role in health or disease remains unknown.
This genotype is exceptionally rare and has not been observed at significant frequencies in large-scale genomic datasets.
What is the rs904783837 Variant?
The rs904783837 variant is a specific change in the DNA sequence associated with the EGLN3 gene. In genomics, a variant like this represents a single point where the genetic code differs from the most common sequence found in the human population. This particular variant is classified as extremely rare, meaning it is found in only a tiny fraction of individuals studied in large-scale genomic databases. It is situated within the genomic region of chromosome 14 that houses the EGLN3 gene. Because it is so rare, scientists have limited data regarding its specific functional impact on human health or physiology. Most research on EGLN3 focuses on its broader role in cellular biology rather than the effects of individual rare variants, making this a subject of ongoing scientific interest rather than established clinical knowledge.
The Role of the EGLN3 Gene
The EGLN3 gene, also known as PHD3, encodes a protein that functions as a prolyl hydroxylase. This enzyme acts as a vital cellular oxygen sensor. Under normal oxygen conditions, EGLN3 hydroxylates hypoxia-inducible factor (HIF) proteins, which marks them for degradation. This process prevents the unnecessary activation of hypoxia-response genes when oxygen is abundant. When oxygen levels drop, the activity of EGLN3 decreases, allowing HIF proteins to stabilize and trigger adaptive responses to low oxygen. Beyond oxygen sensing, EGLN3 is involved in various cellular processes, including the regulation of metabolism, the response to DNA damage, and the inhibition of ferroptosis, a type of cell death. By modulating these pathways, EGLN3 helps cells maintain homeostasis under fluctuating environmental conditions and metabolic stress.
Research and Evidence Strength
Current scientific evidence regarding the rs904783837 variant is limited. While the EGLN3 gene itself is well-studied for its role in hypoxia and inflammation, specific associations between the rs904783837 variant and clinical outcomes have not been established in peer-reviewed literature. Genomic databases categorize this variant as rare, and it does not currently appear in major clinical diagnostic catalogs as a known cause of disease. Most information available is derived from large-scale population sequencing projects rather than functional studies of this specific variant. Consequently, it is not possible to draw conclusions about whether this variant influences an individual's health or stress response. The scientific community continues to catalog such variants to better understand the full spectrum of human genetic diversity, but for now, the clinical significance of rs904783837 remains unknown.
Population Frequency
The rs904783837 variant is classified as very rare, with an estimated allele frequency of approximately 0.0000055. This indicates that the variant is found in an extremely small percentage of the global population, making it an uncommon finding in standard genetic testing.
Interpreting Genetic Information
If you have encountered this variant in a personal genetic report, it is important to understand that rare variants are common in the human genome and do not necessarily imply a health risk. Because the evidence for rs904783837 is limited, it cannot be used to predict health outcomes or guide medical decisions. Genetic information is complex, and most variants have no observable effect on daily life. You should never use this information to make changes to your health regimen or to diagnose a condition. If you have concerns about your genetic profile or family health history, the most appropriate step is to consult with a qualified healthcare provider or a genetic counselor. They can help place your results in the context of your overall health and provide guidance based on established clinical standards rather than speculative data.
How common is this variant?
The rs904783837 variant is very rare, with an allele frequency of approximately 0.0000055 across studied populations.
Frequently asked questions
What does the EGLN3 gene do?
EGLN3 encodes an enzyme that acts as an oxygen sensor in cells. It helps regulate the body's response to low oxygen levels and is involved in managing cellular stress and metabolism.
Is rs904783837 associated with a specific disease?
There is currently no established scientific evidence linking the rs904783837 variant to any specific disease. It is considered a rare variant with unknown clinical significance.
Should I be worried if I have this variant?
No. Most rare genetic variants have no impact on your health. Because the evidence for this variant is limited, it is not considered a marker for health risks.
Where can I learn more about my genetic results?
If you have questions about your genetic data, you should speak with a healthcare professional or a certified genetic counselor. They can provide personalized context based on your medical history.
Sources & further reading
Educational information only, last refreshed 9/16/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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