rs1789953
rs1789953 is a variant at the CBS (cystathionine beta-synthase) locus on chromosome 21, identified as a genome-wide-association tag SNP for blood/toenail selenium concentration rather than a characterized coding change. CBS variants at this locus have also been linked to homocysteine levels in the same GWAS, indicating the selenium association runs through a homocysteine-related metabolic pathway rather than a direct effect on selenium transport. In this dataset it is paired with two DMGDH variants to estimate genetic tendency toward lower, typical, or higher blood selenium.
Traits rs1789953 reads
Gene
Reference databases
How Biome reads this
Biome's at-home DNA test reads this directly from one saliva sample, alongside 650,000+ other markers.
Biome DNA test →This page is for educational purposes only and is not medical advice. It is not intended to diagnose, treat, cure, or prevent any disease. Genetic results describe tendencies and predispositions, not diagnoses. Always consult a licensed clinician before making decisions about your health, medications, or supplements.