rs1876828
CRY1rs1876828 is a single-nucleotide polymorphism (SNP) in the CRY1 gene. Genespiral reads it in the Sleep analysis to describe Sleep Fragmentation.
- Gene
- CRY1
- Alleles
- C / T
- Genotypes
- TT, TC, CC
- Traits
- 1 trait across 1 analysis
An rsID such as rs1876828 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 Fragmentation
Sleep Patterns · Part of the Sleep analysis
A key gene in circadian rhythm regulation, affecting sleep continuity.
| Genotype | Association |
|---|---|
| TT | Increased sleep fragmentation |
| TC | Moderate fragmentation |
| CC | Less sleep fragmentation |
- Summary
- Variations in CRY1 can influence how often sleep is interrupted, affecting overall sleep quality.
- Scientific insights
- Individuals with 'TT' may experience more fragmented sleep than those with 'CC'.
- Lifestyle tips
- Establishing a consistent bedtime routine may reduce sleep fragmentation.
Check your genotype at rs1876828
Load your raw DNA file and Genespiral looks up rs1876828 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 Fragmentation 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 rs1876828 - NCBI
- rs1876828 variant page - Ensembl
- rs1876828 summary - SNPedia
- Clinical significance records for rs1876828 - ClinVar
- CRY1 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.