CACNA1E rs3905011: What Your Genotype Means
The rs3905011 variant is a single nucleotide polymorphism located within the CACNA1E gene. It has been studied in the context of various human traits, including associations with acute myeloid leukemia and metabolic function.
What each genotype means
Common facial morphology variant
This genotype represents the homozygous state for the major allele of the rs3905011 variant. Research into CACNA1E suggests this gene plays a role in biological pathways that may influence facial morphology, though specific phenotypic outcomes for this genotype are not definitively established in the general population.
This is the most common genotype globally, reflecting the major allele frequency of approximately 0.60.
Heterozygous facial morphology variant
Carrying one copy of each allele at this position is a common genetic variation. While CACNA1E is studied for its potential involvement in facial development, current evidence does not support a direct or predictable impact on physical appearance for individuals with this heterozygous profile.
This genotype is found in a significant portion of the population, consistent with the reported minor allele frequency of 0.3935.
Minor allele facial morphology variant
This genotype represents the homozygous state for the minor allele of the rs3905011 variant. While this variant is cataloged in studies regarding facial morphology, the association is considered moderate and does not imply a specific or diagnostic physical trait for carriers.
This is the least common genotype, occurring at a frequency consistent with the minor allele frequency of 0.3935.
Understanding the rs3905011 Variant
The rs3905011 variant is a specific genetic change, or single nucleotide polymorphism (SNP), situated on chromosome 1 at position 181,576,458 (GRCh38). In the context of human genetics, SNPs represent the most common type of variation among people, where a single building block of DNA—a nucleotide—is replaced by another. This particular variant is located within the CACNA1E gene, which provides instructions for creating a component of a calcium channel. Scientists track these variants to understand how subtle differences in our genetic code might contribute to the diversity of human traits or susceptibility to certain conditions. Because this variant is common in the population, it serves as a useful marker for researchers investigating the complex relationship between our DNA and our biological characteristics.
The Role of the CACNA1E Gene
The CACNA1E gene encodes the alpha-1E subunit of the voltage-gated calcium channel, often referred to as the R-type calcium channel. These channels are essential for the flow of calcium ions into cells, a process that is critical for various physiological functions, including the transmission of signals between nerve cells and the regulation of hormone secretion. Research has highlighted the importance of this gene in pancreatic beta-cell function, which is vital for insulin production and glucose metabolism. Beyond its role in metabolic health, the gene is expressed in various tissues throughout the body. Understanding the function of CACNA1E helps researchers explore how variations in this gene might influence cellular signaling pathways and, consequently, impact human health and development.
Research Associations and Evidence Strength
Scientific research has investigated rs3905011 in several contexts, though the strength of the evidence varies by trait. Notably, this variant has been identified in genome-wide association studies (GWAS) as having a potential link to acute myeloid leukemia. Additionally, other variants within the CACNA1E gene have been studied for their influence on beta-cell function in patients with type 2 diabetes, suggesting a broader role for this gene in metabolic regulation. While some databases categorize this SNP under facial morphology, evidence linking rs3905011 specifically to facial shape is limited and often requires further replication in larger, diverse cohorts. It is important to note that genetic associations are statistical in nature and do not imply a direct cause-and-effect relationship for any individual.
Population Frequency
The rs3905011 variant is relatively common across human populations. According to current data, the Global Minor Allele Frequency (GMAF) for this variant is approximately 0.3935. This frequency indicates that the variant is widely distributed, appearing frequently in many different ancestral groups. Because it is a common variant, it is frequently included in large-scale genetic studies and commercial genotyping arrays, allowing researchers to gather significant amounts of data regarding its distribution and potential phenotypic associations across diverse global populations.
Interpreting Your Genetic Information
Information regarding genetic variants like rs3905011 is intended for educational purposes and should not be used for medical diagnosis or personal health management. While research may suggest statistical links between this variant and certain traits or conditions, these findings are often based on population-level data and may not apply to your specific health profile. Genetic factors are only one piece of a much larger puzzle that includes environment, lifestyle, and other genetic influences. If you have concerns about your health or are interested in how your genetics might influence your medical care, it is essential to consult with a qualified healthcare provider or a genetic counselor. They can help you interpret your results in the context of your overall health history and provide appropriate guidance.
How common is this variant?
The rs3905011 variant is common, with a Global Minor Allele Frequency (GMAF) of approximately 0.3935 across diverse populations.
Frequently asked questions
What does it mean if I have the rs3905011 variant?
Having this variant simply means you carry a specific genetic sequence at this location on your DNA. It is a common variation found in a large portion of the human population and is not inherently indicative of a health condition.
Is rs3905011 linked to a specific disease?
Some research has statistically associated this variant with acute myeloid leukemia in large-scale studies. However, these associations are statistical and do not mean that carrying the variant will cause the disease.
Can I use this information to change my diet or lifestyle?
No, this information is for educational purposes only. You should not make changes to your diet, lifestyle, or medical care based on a single genetic variant without consulting a healthcare professional.
Where can I learn more about my specific genetic results?
If you have received genetic testing results, the best way to understand them is to speak with a genetic counselor or your primary care physician. They can provide context based on your personal and family health history.
Sources & further reading
Educational information only, last refreshed 9/19/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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