HTT gene CAG repeat length test report
alleles with 40 or more repeats are fully penetrant
tests per year, worldwide, once, as the genetic diagnosis
“results from expansion of a CAG trinucleotide repeat in the HTT (huntingtin) gene: alleles with 40 or more repeats are fully penetrant.”
- Kind of source
- Clinical guideline
- Read on
- 2026-11-06
- Daily check
- Quote found at the source on 2026-11-06
- What to know
- A one-off genetic result; the guideline states what repeat count counts as fully penetrant, not a testing interval.
Used in
Kept as evidence; no figure on the platform is computed from it yet.