Repeat unit T/A repeats 15 times in the reference sequence.
...TGCCCAGTTGGAGCCGGTGGCATGGAGGAGAGGCTGCCTGTGGGGAATCACCCGAGGGTTCACCGCTGCCATGCGCAGGGAGTCAGGAGGTAGGGAGGGA
GTGGGGCAGATGCACACCATTTTTTTTTTTTTTTGAGACTCTGTTGCCCAGACTGGAGTGCAGTGGTGCCATATCTGCACCTCTGCCTCCCGGGTTCAAG
CTCACTGCAACCTCTGCCTCCCGGGTTCAAGCGATTCTCCTGCCTCAGCCTCCC...