SLC6A3 rs3836790: What Your Genotype Means
The rs3836790 variant is a single nucleotide polymorphism located within the SLC6A3 gene, which encodes the dopamine transporter protein. Research has explored its potential associations with various neuro-behavioral traits and reproductive-related health outcomes.
What each genotype means
Common genetic variant
This genotype indicates you carry one copy of the T allele at this position in the SLC6A3 gene. Current scientific literature does not associate this specific heterozygous state with any distinct clinical phenotype or reproductive disorder, and it is considered a common variation.
This genotype is found at common frequencies in the general population.
Common genetic variant
This genotype indicates you carry two copies of the T allele at this position in the SLC6A3 gene. While the SLC6A3 gene is involved in dopamine regulation, this specific variant is not currently linked to significant health outcomes or reproductive traits in peer-reviewed research.
This genotype is observed at common frequencies across various ancestral groups.
Understanding the rs3836790 Variant
The rs3836790 variant is a specific genetic change, or single nucleotide polymorphism (SNP), situated on chromosome 5 within the SLC6A3 gene. In genetics, a SNP represents a variation at a single position in the DNA sequence among individuals. This particular variant is cataloged in major genomic databases, including dbSNP, which track such variations across human populations. While many SNPs have no observable effect on health or behavior, researchers study them to determine if they correlate with specific biological traits or disease risks. Because rs3836790 is located within a gene responsible for critical neurotransmitter regulation, it has been a subject of interest for scientists investigating how subtle genetic differences might influence brain function and related physiological processes.
The Role of the SLC6A3 Gene
The SLC6A3 gene provides the essential instructions for building the dopamine transporter (DAT) protein. This protein is embedded in the membranes of neurons, where it plays a vital role in regulating the levels of dopamine, a chemical messenger in the brain. By facilitating the reuptake of dopamine from the synaptic space back into the neuron, the transporter helps maintain proper monoamine homeostasis. This process is crucial for controlling the intensity and duration of dopaminergic signaling, which influences mood, movement, and reward-seeking behaviors. Because of its central role in neurotransmission, variations in SLC6A3 are frequently studied in the context of neurological and psychiatric conditions, as well as other physiological systems that rely on dopamine signaling.
Research Associations and Evidence Strength
Scientific literature has investigated the role of SLC6A3 variants in various behavioral and reproductive contexts. While some studies have suggested links between SLC6A3 polymorphisms and traits such as neuro-reproductive behaviors or susceptibility to specific disorders, the evidence for rs3836790 specifically remains limited. Genetic association studies often face challenges, such as small sample sizes or the influence of environmental factors, which can make it difficult to establish a definitive causal link. Current research indicates that while this variant is part of a gene known to be biologically significant, the strength of the evidence connecting rs3836790 to specific clinical outcomes is not yet robust. Consequently, findings should be viewed as preliminary, and further large-scale research is required to clarify the functional impact of this specific SNP.
Population Frequency
The rs3836790 variant is considered a common genetic marker. It is found across diverse human populations, though the exact frequency of its specific alleles can vary depending on ancestral background. Because it is a common variant, it is frequently observed in large-scale genomic studies, such as those cataloged by gnomAD and the 1000 Genomes Project. These databases provide a baseline for understanding how often this variant appears in the general population, helping researchers distinguish between rare mutations that might cause severe disease and common variations that contribute to normal human diversity.
Interpreting Your Genetic Information
It is important to understand that having a particular genotype for rs3836790 does not constitute a medical diagnosis or a prediction of future health. Genetic associations are statistical observations made across large groups of people and do not necessarily apply to any single individual. Many factors, including lifestyle, environment, and the interaction of thousands of other genes, contribute to complex traits and health outcomes. If you have questions about your genetic results or concerns regarding reproductive health or neurological symptoms, you should consult with a qualified healthcare professional or a genetic counselor. They can provide context based on your personal and family medical history, which is far more informative than any single genetic variant.
How common is this variant?
The rs3836790 variant is a common polymorphism found across diverse ancestral populations globally.
Frequently asked questions
Is rs3836790 a cause of disease?
No, rs3836790 is a genetic variant associated with statistical trends in research, not a direct cause of disease. Most common variants have only a very small influence on health outcomes.
Can I use this information to change my medication?
No. You should never change your medication or dosage based on genetic information without first consulting your doctor or pharmacist. They are the only ones qualified to manage your treatment plan.
Where can I find more research on SLC6A3?
You can search for the gene name 'SLC6A3' on resources like PubMed or the GWAS Catalog to find peer-reviewed studies. These databases provide access to the latest scientific literature on the gene's function and associations.
Does this variant affect my fertility?
While some research explores links between SLC6A3 and reproductive-related traits, there is no evidence that this specific variant determines fertility. Always speak with a reproductive specialist for concerns regarding your health.
Sources & further reading
Educational information only, last refreshed 10/2/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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This SNP is part of a haplotype associated with treatment failure in patients receiving methylphenidate therapy.
This variant in the dopamine transporter gene is studied for its potential influence on methylphenidate treatment response.
A tag SNP correlated with functional dopamine active transporter expression patterns during acute cognitive and psychological stress challenges.
This variant in the dopamine transporter gene is linked to various behavioral and psychiatric traits.