ENG rs1064794218: Understanding This Rare Genetic Variant
The rs1064794218 variant is a rare genetic change located within the ENG gene. It has been identified in research contexts as potentially linked to vascular malformation phenotypes.
What each genotype means
Typical ENG genotype
This genotype represents the most common sequence found at this location in the ENG gene. It is considered the baseline state for this specific variant in the general population.
This is the most common genotype observed across all major global populations.
Rare ENG variant carrier
This genotype indicates the presence of a rare variant in the ENG gene, which is involved in maintaining vascular integrity. Because this variant is rare and its specific clinical significance is not fully established, you should discuss any relevant family history of vascular conditions with a healthcare provider or genetic counselor.
This genotype is extremely rare and is not typically found in the general population.
Rare ENG variant homozygous
This genotype indicates that both copies of the ENG gene carry this rare variant. Given the role of ENG in vascular development, individuals with rare variants in this gene should consult with a medical professional to understand if this finding is relevant to their health or family history.
This genotype is exceptionally rare and has not been documented as a common occurrence in any major population group.
What is rs1064794218?
The identifier rs1064794218 refers to a specific single nucleotide polymorphism (SNP) located within the ENG gene. In genomics, a SNP represents a variation at a single position in the DNA sequence among individuals. This particular variant is categorized as rare, meaning it is found in a very small percentage of the general population. It sits within the genomic region associated with the ENG gene, which provides the blueprint for the endoglin protein. Because this variant is rare, it is often studied in the context of clinical genetics to determine if it contributes to specific health conditions or if it is a benign variation that naturally occurs in human diversity. Researchers use databases like dbSNP to track these specific locations to better understand how they might influence biological processes.
The Role of the ENG Gene
The ENG gene is responsible for producing a protein called endoglin. Endoglin is a transmembrane glycoprotein primarily found on the surface of endothelial cells, which line the interior of blood vessels. It functions as a critical component of the transforming growth factor-beta (TGF-beta) receptor complex. This signaling pathway is essential for the development, maintenance, and repair of the vascular system. When the ENG gene functions normally, it helps regulate the growth and stability of blood vessels throughout the body. Mutations or significant variations in this gene can disrupt these processes, potentially leading to vascular abnormalities. Because of its central role in vascular integrity, the ENG gene is a primary focus for researchers investigating conditions like hereditary hemorrhagic telangiectasia, a disorder characterized by abnormal blood vessel formation.
Research and Evidence Strength
Current evidence linking rs1064794218 to specific clinical outcomes is considered moderate. While the ENG gene is well-documented in medical literature for its involvement in vascular dysplasia and hereditary hemorrhagic telangiectasia, the specific functional impact of the rs1064794218 variant requires further investigation. Scientific studies often use burden tests and association analyses to determine if a rare variant contributes to a disease phenotype. Because this variant is rare, it is difficult to establish a definitive causal link without large-scale population studies or functional laboratory assays. It is important to distinguish between a variant that is merely present in a population and one that actively causes a disease. As of now, this variant is noted in catalogs for its potential association with vascular malformations, but it is not currently classified as a definitive diagnostic marker for any specific condition.
Population Frequency
The rs1064794218 variant is classified as rare across global populations. In genetic research, rare variants are those that appear at a very low frequency in the general population, often making them harder to study compared to common variants. Because of this low frequency, the statistical power to detect associations with health traits is limited. Data from large-scale sequencing projects, such as the genome Aggregation Database (gnomAD), are typically used to estimate how often this variant appears in different ancestral groups. Currently, the data suggests that this variant does not appear frequently enough to be considered a common feature of human genetic variation. This rarity is a key factor in why clinical interpretation of such variants remains complex and requires careful analysis by geneticists.
Navigating Genetic Information
Understanding your genetic information can be a complex process. If you have encountered this variant in a personal genetic report, it is essential to remember that the presence of a rare variant does not automatically imply a medical diagnosis. Genetic variants are only one piece of a much larger puzzle that includes environmental factors, lifestyle, and other genetic influences. You cannot use this information to self-diagnose or make medical decisions. If you are concerned about vascular health or have a family history of related conditions, the most appropriate step is to consult with a qualified healthcare provider or a genetic counselor. They can help interpret these findings within the context of your personal and family medical history. Always discuss any health-related genetic findings with a clinician before taking action.
How common is this variant?
The rs1064794218 variant is documented as rare, appearing at a very low frequency across diverse human populations.
Frequently asked questions
What does it mean if I have a rare variant in the ENG gene?
Having a rare variant does not necessarily mean you have a health condition. Many rare variants are benign, and their clinical significance often requires expert interpretation by a genetic counselor or physician.
Is rs1064794218 associated with a specific disease?
This variant is linked to vascular malformation phenotypes in research catalogs. However, the evidence is moderate, and it is not a definitive diagnostic marker for any specific disease.
Should I be worried about my vascular health if I have this variant?
Genetic variants are only one factor in your overall health. You should discuss any concerns about your vascular health with your doctor, who can evaluate your symptoms and family history.
Where can I find more information about the ENG gene?
You can find reliable information about the ENG gene through resources like MedlinePlus Genetics or the NCBI Gene database. These sites provide summaries of gene function and associated conditions.
Sources & further reading
Educational information only, last refreshed 10/1/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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Genetic variant identified in the ENG gene, relevant for clinical screening of vascular disorders.
A known pathogenic mutation in the ENG gene linked to vascular malformations.
Pathogenic variant in the ENG gene associated with hereditary hemorrhagic telangiectasia type 1.
A variant in the ENG gene potentially impacting protein function related to vascular development.
This variant is located within the ENG gene, which is associated with hereditary hemorrhagic telangiectasia.
Clinically significant variant in the ENG gene associated with hereditary hemorrhagic telangiectasia.