Repeat unit -A/T- repeats 15 times in the reference sequence.
...AGGCAGCTGGCTTTCTATGGTTCAGAATCAATAACAGGTGATACTCTCTTTAGCATGAATTAGAAGGCAACATGAAGTTCAAGGTGAATTCCCCAAACAC
CACAAATATCTGTTCTCCTACACACACACACACACACACACACACACACATTTTATCTATATATAAACATGCACACACACAACCCTTACCTTATGTCCTC
ACCTATCCACCTCAGCCAAAAAAGACAAATGCATTCTAAACTAGGCATGTTGATACTGTTATGGATTTTT...