RORB rs10508635: Understanding Your Genetic Variant
The rs10508635 variant is a single-nucleotide polymorphism located within the RORB gene, which plays a role in the body's internal circadian clock. Research has investigated this variant for potential associations with sleep-wake cycle preferences and sleep disruptions related to mood conditions.
What each genotype means
Typical circadian baseline
You carry two copies of the major A allele for this RORB intronic polymorphism. In candidate gene studies, this baseline genotype has not been linked to the altered sleep phase timing or circadian vulnerabilities reported for the minor G allele. However, circadian preference is complex and shaped by many genetic factors alongside your daily environment and sleep habits.
Carried by approximately 40% to 45% of individuals of European ancestry and roughly 60% to 65% of individuals of East Asian ancestry.
Modest circadian shift tendency
You carry one copy of the minor G allele in the RORB locus. Preliminary association studies suggest this allele may be linked to subtle variations in diurnal preference or increased vulnerability to circadian rhythm and sleep disturbances, though the clinical evidence remains limited and correlative. It does not dictate a sleep disorder or psychiatric condition, as overall sleep architecture depends on lifestyle, light exposure, and many other genetic loci.
Carried by approximately 45% of European populations and roughly 30% to 35% of East Asian populations.
Circadian trait variation
You have two copies of the minor G allele for this RORB variant. While early candidate gene research observed associations between the G allele and variations in chronotype or sleep schedule fragility, findings have not been uniformly replicated across large-scale unselected cohorts. This genotype is considered a common non-coding trait variation rather than a diagnostic marker, and practicing consistent sleep hygiene remains the primary determinant of circadian health.
Carried by approximately 10% to 15% of individuals of European descent and about 4% to 5% of individuals of East Asian descent.
What is rs10508635?
The rs10508635 variant is a specific change in the DNA sequence, known as a single-nucleotide polymorphism (SNP), located within the RORB gene. This variant is classified as an intronic regulatory polymorphism, meaning it sits in a non-coding region of the gene that may influence how the gene is expressed or regulated. Because it is located in an intron, it does not change the protein sequence itself but may affect the timing or quantity of the RORB protein produced in various tissues. Scientists study such variants to understand how subtle differences in our genetic code contribute to individual variations in biological processes, such as the regulation of our internal clocks.
The Role of the RORB Gene
The RORB gene encodes the RAR-related orphan receptor beta protein. This protein is a member of the nuclear receptor family and is known to be an integral component of the circadian clock machinery in mammals. The circadian clock is a complex system that regulates the 24-hour cycle of physiological processes, including sleep, hormone release, and metabolism. Research indicates that RORB is expressed in the suprachiasmatic nucleus, the brain's master clock, and is involved in processing sensory input and maintaining rhythmicity. Because of its function, variations in RORB are frequently investigated in studies looking at sleep disorders, mood regulation, and the biological basis of circadian rhythm preferences.
Research and Evidence
Scientific research into rs10508635 and other RORB variants has primarily focused on their potential link to circadian rhythm abnormalities and sleep-related phenotypes. Some studies have observed nominal associations between RORB variants and sleep disruption or mood-related conditions, suggesting that these genetic markers might influence how individuals experience sleep cycles. However, it is important to note that the evidence for these associations is currently considered limited. Many findings have been inconsistent across different populations, and some initial associations have not been replicated in larger or independent cohorts. Consequently, while RORB remains a candidate gene of interest in chronobiology, it is not currently used as a diagnostic tool for any medical condition.
What You Can Do With This Information
Genetic information regarding variants like rs10508635 is intended for educational and research purposes only. It is not a medical diagnosis and cannot predict your personal health outcomes or sleep patterns. Because the evidence linking this variant to specific traits is limited and often based on statistical associations in research groups, it should not be used to make health decisions. If you are experiencing persistent sleep issues, mood disturbances, or concerns about your circadian rhythm, the most effective approach is to consult with a qualified healthcare professional. They can provide personalized guidance, evaluate your symptoms, and discuss appropriate management strategies. Never use genetic data to alter medications or treatments without first speaking with your doctor or pharmacist.
How common is this variant?
The minor allele frequency for this variant is approximately 0.20 in East Asian populations and 0.35 in European populations according to gnomAD data.
Frequently asked questions
Is rs10508635 a diagnostic test for sleep disorders?
No, rs10508635 is not a diagnostic test. It is a genetic variant studied in research contexts to understand biological pathways, and it cannot be used to diagnose any sleep or mood disorder.
Does having a specific genotype mean I will have sleep problems?
No. Genetic variants like rs10508635 only show statistical associations in large research studies. They do not determine individual health outcomes, and many factors beyond genetics influence sleep.
Where can I find more information about RORB?
You can search the NCBI Gene database or the GWAS Catalog for peer-reviewed research on the RORB gene and its known associations with various human traits.
Should I change my sleep habits based on my genotype?
No. You should not change your health habits or medical treatments based on genetic data. Always consult with a healthcare provider for advice tailored to your specific health needs.
Sources & further reading
Educational information only, last refreshed 10/19/2026. Not medical advice — these associations describe population statistics, not individual predictions.
Curious what your genotype is for rs10508635?
Upload a raw DNA file from 23andMe, AncestryDNA, MyHeritage, or FamilyTreeDNA and see this variant — plus thousands more — interpreted in your full report.
Get my report — $29