rs1801260
CLOCKrs1801260 is a single-nucleotide polymorphism (SNP) in the CLOCK gene. Genespiral reads it in the Sleep analysis to describe Sleep-Wake Timing (Circadian Rhythm).
- Gene
- CLOCK
- Alleles
- C / T
- Genotypes
- TT, TC, CC
- Traits
- 1 trait across 1 analysis
An rsID such as rs1801260 is the reference number dbSNP assigns to one position in the genome where people commonly differ by a single letter. Raw data exports from 23andMe and AncestryDNA list your two alleles at that position as a genotype - for this marker one of TT, TC, CC. The order of the two letters carries no meaning, so TC and its reverse are the same genotype.
Alleles on this page are written on the forward (plus) strand, matching how consumer raw files report them. Other references sometimes describe the same variant on the opposite strand, which swaps A↔T and C↔G - see why the same variant can look different. The associations below are educational summaries of published research; they are not diagnoses, and the effect of any single SNP is usually modest.
Sleep-Wake Timing (Circadian Rhythm)
Sleep Patterns · Part of the Sleep analysis
Involved in circadian rhythm regulation, impacting sleep-wake cycles.
| Genotype | Association |
|---|---|
| TT | Delayed sleep phase (night owl) |
| TC | Intermediate timing |
| CC | Advanced sleep phase (early bird) |
- Summary
- CLOCK gene variations affect an individual’s sleep-wake timing preferences.
- Scientific insights
- 'TT' is associated with a preference for late sleep times, while 'CC' aligns with early rising.
- Lifestyle tips
- Light exposure in the morning can help shift sleep-wake timing earlier.
Check your genotype at rs1801260
Load your raw DNA file and Genespiral looks up rs1801260 along with every other marker in the Sleep analysis. The file is parsed in your browser and never uploaded, so your genotype stays on your device.
- 1. Download your raw data from 23andMe or AncestryDNA.
- 2. Open the analysis below and choose the file.
- 3. Find Sleep-Wake Timing (Circadian Rhythm) in your results.
Related
More markers from Sleep
References
Primary databases for this variant. Use them to check allele orientation, population frequencies, and the underlying studies.
- dbSNP entry for rs1801260 - NCBI
- rs1801260 variant page - Ensembl
- rs1801260 summary - SNPedia
- Clinical significance records for rs1801260 - ClinVar
- CLOCK gene - NCBI Gene
Genespiral is an educational tool, not a medical service. Genetic associations describe tendencies observed across populations, not certainties for you. Read the full disclaimer.