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GTR Home > Tests > Androgen receptor (AR) gene CAG triplet repeat test



Molecular Genetics
TTargeted variant analysis
Trinucleotide repeat by PCR or Southern Blot
  • Applied Biosystems 3130xl genetic analyser

Test development


Test developed by laboratory (no manufacturer test name)

Test procedure


FAM labelled PCR and Applied Biosystems 3031xl automated fragment analysis of the CAG repeat expansion in the first exon of the androgen receptor (AR) gene on chromosome Xq11.2-q12. The normal range for the CAG repeat alleles is 11 to 33 repeats. Pathological alleles contain 38 to 62 CAG repeats.

  • Androgen receptor gene mutations in X-linked spinal and bulbar muscular atrophy. - PubMed ID: 2062380

Confirmation of results


different method or new sample

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