Repeat unit T/A repeats 15 times in the reference sequence.
...GTTCATGAAAAGAGACCTTGTGGGGAGGGCAACACAACAGTGTGTTCTGATGTACTGAAGAGCTCAACTGAAAACAACAGGAGAATTAGCCCAAAATCCA
TTTACTAAAATTGTTTATCTTTTTTTTTTTTTTTGAGACAAAGTCTCGCTGTTGTCCCCCAGGCTGGAGTGCAATGGCGCTATCTTGGCTCACTGCAACC
TCCGCCTCCTGGGTTCATACGATTCTCCTGCCTCAGCCTCCCAAATAGCTGGTA...