CYP2E1 rs6413432: Understanding This Genetic Marker
The rs6413432 variant is a single nucleotide polymorphism located within the CYP2E1 gene, which encodes an enzyme critical for metabolizing various substances. Research into this marker often focuses on its potential influence on how the body processes xenobiotics, including certain medications and environmental compounds.
What each genotype means
Typical enzyme transcription
This genotype represents the common, baseline version of the CYP2E1 gene in many populations. Research indicates this version is associated with standard levels of CYP2E1 enzyme transcription. Please consult with your healthcare provider or pharmacist regarding how your specific genetic profile may influence your response to medications metabolized by this enzyme.
This is the most common genotype observed in the majority of global populations.
Increased enzyme transcription potential
This genotype includes one copy of the variant allele, also known as CYP2E1*6. Studies suggest this variant is associated with increased transcription of the CYP2E1 enzyme compared to the baseline. Because this enzyme processes various substances, including certain medications, please discuss your genetic results with your clinician or pharmacist to understand if this impacts your clinical care.
The frequency of this genotype varies significantly by ancestry and is less common than the homozygous baseline genotype.
Increased enzyme transcription potential
This genotype consists of two copies of the variant allele, referred to in literature as the CYP2E1*6 allele. Research has linked this variant to increased transcription of the CYP2E1 enzyme. As this enzyme plays a role in metabolizing specific compounds and medications, you should discuss these findings with your healthcare provider or pharmacist to determine if any adjustments to your medical management are appropriate.
This genotype is relatively rare across most studied populations compared to the baseline genotype.
What is rs6413432?
The variant rs6413432 is a specific genetic change, or single nucleotide polymorphism (SNP), located on chromosome 10 within the CYP2E1 gene. In genetic databases, this marker is sometimes referred to as part of the CYP2E1*6 haplotype. A SNP represents a variation at a single position in the DNA sequence, where one nucleotide is replaced by another. For rs6413432, the variation involves the substitution of a thymine (T) with an adenine (A). Because this variant sits within a gene responsible for producing a key metabolic enzyme, researchers track it to understand if it correlates with differences in enzyme activity or individual responses to external substances. It is one of many markers studied to map the genetic diversity of human drug-metabolizing enzymes across different global populations.
The Role of the CYP2E1 Gene
The CYP2E1 gene provides instructions for creating the cytochrome P450 2E1 enzyme. This enzyme is primarily expressed in the liver and plays a vital role in the phase 1 metabolism of a wide array of compounds. It is particularly well-known for its ability to metabolize ethanol, as well as various small molecules, including certain industrial chemicals and procarcinogens. Beyond xenobiotics, the enzyme also participates in endogenous processes, such as the hydroxylation of fatty acids. Because of its broad substrate specificity, the activity level of the CYP2E1 enzyme can influence how quickly or slowly the body clears certain substances from the system. Variations in the gene sequence, like rs6413432, are investigated to determine if they lead to functional changes in the enzyme's efficiency or expression levels, which could theoretically impact metabolic pathways.
Research and Evidence
Scientific interest in rs6413432 stems from its potential association with metabolic variability. Studies have examined this variant in the context of various health outcomes, including its role in the metabolism of dietary components and its potential link to certain cancer risks, such as nasopharyngeal carcinoma. However, the evidence strength for this variant remains moderate. While some studies suggest correlations between specific genotypes and disease susceptibility or metabolic rates, these findings are often population-specific and have not always been replicated consistently across diverse ethnic groups. It is important to note that genetic associations are complex; a single SNP rarely acts in isolation. Most research in this field is observational, meaning it identifies patterns rather than establishing direct cause-and-effect relationships. Consequently, findings regarding rs6413432 should be viewed as part of a broader, ongoing effort to understand the genetic architecture of human metabolism.
Population Frequency
The frequency of the rs6413432 variant is known to be variable across different ancestral populations. For instance, studies in Turkish populations have reported specific genotype distributions for this marker, showing that the majority of individuals carry the T/T genotype, while the T/A and A/A genotypes appear at lower frequencies. These patterns are generally consistent with other Caucasian populations but can differ significantly when compared to East Asian or other global cohorts. Because allele frequencies are not uniform worldwide, the prevalence of the variant depends heavily on the genetic background of the population being studied. Researchers use these frequency data to better understand human evolutionary history and to ensure that pharmacogenetic studies account for the diversity of genetic markers across the globe.
Interpreting Your Information
If you have received information about your rs6413432 genotype, it is essential to understand that this data is for educational purposes and does not constitute a medical diagnosis. Genetic markers like rs6413432 are just one piece of a much larger puzzle that includes environmental factors, lifestyle, and other genetic influences. You cannot use this information to predict your personal health outcomes or to make decisions about medication dosing. If you are concerned about how your body processes specific medications or if you have questions about your genetic profile, you should consult with a qualified healthcare provider or a clinical pharmacist. They are the best resources for interpreting genetic information in the context of your overall health and can provide guidance based on established clinical guidelines rather than individual research findings.
How common is this variant?
The frequency of the rs6413432 variant is variable across global populations, with the T allele being more common than the A allele in many studied groups.
Frequently asked questions
What does rs6413432 do to my health?
The rs6413432 variant is a genetic marker studied for its potential role in enzyme metabolism. It does not directly determine your health, and current research does not support using this SNP to predict specific health outcomes or disease risks.
Should I change my medication based on this SNP?
No. You should never change your medication or dosage based on genetic test results without consulting your doctor. Only a healthcare professional can determine if a medication adjustment is appropriate for your specific clinical situation.
Is rs6413432 the same as CYP2E1*6?
Yes, rs6413432 is the SNP identifier often used to define the CYP2E1*6 haplotype. These terms refer to the same genetic variation within the CYP2E1 gene.
Where can I find more information on CYP2E1?
You can find reliable information about the CYP2E1 gene and its function through resources like MedlinePlus Genetics or the NCBI Gene database. These sites provide comprehensive, peer-reviewed summaries of gene functions and their roles in human biology.
Sources & further reading
Educational information only, last refreshed 9/30/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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Get my report — $29Related variants in CYP2E1
This variant (c.1293G>C) is located in the CYP2E1 gene and is studied for its influence on the metabolism of substrates such as ethanol and various procarcinogens.
Regulatory promoter variant in CYP2E1 (c.-1055C>T, defining CYP2E1*5B) linked to altered transcriptional induction and variable metabolism of acetaminophen, ethanol, and volatile anesthetics.