GABRG2 rs7602358: Understanding Genetic Associations
The rs7602358 variant is a genetic marker located within the GABRG2 gene region. While GABRG2 is well-known for its role in various epilepsy syndromes, this specific variant is often studied in broader population research contexts.
What each genotype means
Typical genetic profile
This genotype represents the most common version of this genetic location found in the general population. There is no evidence suggesting this specific combination of alleles contributes to an increased risk of epilepsy or seizure disorders.
This is the most frequent genotype observed across most global populations.
Typical genetic profile
This genotype is considered a common variation and is not typically associated with clinical seizure disorders. Research into GABRG2 focuses primarily on rare, pathogenic mutations rather than this common variation.
This genotype is commonly found in the general population across diverse ancestral groups.
Typical genetic profile
This genotype is a standard variation found in the majority of the population. It is not linked to the rare, pathogenic GABRG2 mutations that have been studied in the context of childhood absence epilepsy or other seizure syndromes.
This is a common genotype observed frequently in individuals of all ancestral backgrounds.
What is rs7602358 and where is it located?
The variant rs7602358 is a single nucleotide polymorphism (SNP) found on chromosome 2. In the human genome, SNPs represent the most common type of genetic variation, occurring when a single nucleotide—adenine, thymine, cytosine, or guanine—is altered. This specific variant is situated within the genomic region associated with the GABRG2 gene. While some databases may associate this coordinate with neighboring genes like KLHL30, it is frequently discussed in literature regarding the GABRG2 locus. Understanding the location of a SNP is the first step for researchers in determining whether a variant might influence how a gene is expressed or how the resulting protein functions within the body.
The Role of the GABRG2 Gene
The GABRG2 gene provides instructions for creating the gamma-2 subunit of the GABA-A receptor. These receptors are critical components of the central nervous system, acting as the primary inhibitory neurotransmitter system in the brain. By allowing chloride ions to enter neurons, GABA-A receptors help dampen electrical activity, effectively acting as a 'brake' for the brain's signaling. When this system is disrupted, it can lead to hyperexcitability, which is a hallmark of various seizure disorders. While specific rare mutations in GABRG2 are definitively linked to conditions like childhood absence epilepsy and febrile seizures, common variants like rs7602358 are often investigated to see if they contribute to the broader genetic architecture of neurological traits.
Research Associations and Evidence Strength
The evidence linking rs7602358 to specific clinical outcomes is considered moderate or exploratory. Unlike rare, high-impact mutations that directly cause severe epilepsy syndromes, common variants are typically studied for their small, cumulative effects on disease susceptibility. Research has utilized this SNP in various population-based studies, including investigations into circadian rhythms and metabolic traits. It is important to distinguish between these common variants and the rare, pathogenic mutations in GABRG2 that have been clinically validated to cause epilepsy. Because the association of rs7602358 with any specific health condition is not definitive, it is categorized as a trait-associated variant rather than a diagnostic marker. Current research continues to evaluate how such common variants might interact with other genetic and environmental factors.
Interpreting Your Genetic Information
If you have received information about your genotype for rs7602358, it is essential to understand that this data is for educational purposes. Genetic variants are pieces of a much larger puzzle, and the presence of a specific allele does not equate to a medical diagnosis. Because this variant is common, many healthy individuals carry the same genotype. You cannot use this information to predict personal health outcomes or to make decisions about medical treatments. If you have concerns about neurological health, seizure history, or family patterns of disease, the most appropriate step is to consult with a qualified healthcare provider or a genetic counselor. They can provide context based on your full medical history and clinical presentation, which are far more predictive of health than any single SNP.
How common is this variant?
The rs7602358 variant is considered a common polymorphism, with its genotypes appearing at varying frequencies across different global ancestral populations.
Frequently asked questions
Is rs7602358 a cause of epilepsy?
No, rs7602358 is not considered a causative mutation for epilepsy. While the GABRG2 gene is associated with epilepsy, this specific SNP is a common variant and is not classified as a pathogenic mutation.
Can I use this SNP to predict my risk of seizures?
No, this SNP cannot be used to predict seizure risk. Epilepsy is a complex condition influenced by many genetic and environmental factors, and this variant does not provide diagnostic information.
What should I do if I am worried about my GABRG2 results?
If you have concerns about your genetic results or family health history, you should discuss them with a doctor or a genetic counselor. They can help you interpret your information in the context of your overall health.
Why do different databases show different genes for this SNP?
Genetic variants are sometimes located in regions where genes overlap or are in close proximity. Databases may list different genes based on the specific genomic build or the proximity of the SNP to regulatory regions.
Sources & further reading
Educational information only, last refreshed 10/6/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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This variant in the GABRG2 gene is associated with variations in response to certain anticonvulsant medications and epilepsy susceptibility.
Variant in GABRG2, a gene where mutations can alter GABA-A receptor function and influence seizure thresholds.
Mutations in GABRG2 are linked to a spectrum of epilepsy ranging from simple febrile seizures to severe developmental and epileptic encephalopathies.
This variant is located in the GABRG2 gene, which encodes the gamma-2 subunit of the GABA-A receptor; variants in this gene are associated with a spectrum of epilepsy syndromes.
A common variant in GABRG2, a gene encoding a GABA-A receptor subunit linked to various epilepsy phenotypes including febrile seizures and GEFS+.
Linked to GABA-A receptor subunit dysfunction, a known mechanism for inherited epilepsy syndromes.