Repeat unit AC/GT repeats 19 times in the reference sequence.
...TGCTACTTACCTAGCTGCTAGGTGCTAGGCCTTGTGGAAACTCTATAAAGGTTACTAAGATATAAGTAAGACACAGGCCCTGCCCTCAGGAATCTTTAGC
CTGAAATGGTTATAACATAACACACACACACACACACACACACACACACACACACACAAGCCAGAACAAATGCTCTGAATTCTTTGAAGCCTCTCCTATC
TAGATGTGAATATTCCATTGTGAATCCCCATCTAGATGTGAATATTCAGTTGTGGAAGCCCCTAAGAATGTGATTCAT...