uanome.

Gene library · Pharmacogenomics

Fluoropyrimidine metabolism (*2A)

rs3918290 · gene DPYD · category Pharmacogenomics · Quanome Plus

Your DNA file reports your genotype at rs3918290 — a marker in the DPYD gene that studies link to fluoropyrimidine metabolism (*2a). Here's what each genotype is associated with:

GenotypeWhat it's associated with
CCNormal DPD activity.
CTReduced DPD — higher toxicity risk with 5-FU/capecitabine chemo. Informational; clinically critical, discuss with your oncologist.
TTDPD deficiency — serious toxicity risk with these chemo drugs. Informational; clinically critical.

Educational only — not medical or diagnostic advice. A single marker is one of many factors; strand orientation varies between files. Always consult a qualified clinician about your health.

Want to read rs3918290 in your own data? The free DNA explorer checks it in your browser — nothing is uploaded. Or get the full picture in Quanome, which reads your whole genome on-device alongside your labs and Apple Health.

See all your genes in one place

Quanome reads your full DNA file on your device — traits, nutrition, fitness, and more — alongside your labs and Apple Health. Free on the App Store and Google Play.

Download on the App Store Get it on Google Play

Quanome is free on the App Store and Google Play. Want product news too? Leave your email below.