Repeat unit AGC/GCT repeats 20 times in the reference sequence.
...GGGGTGCGTGGAGGATGGAACACGGACGGCCCGGCTTGCTGCCTTCCCAGGCCTGCAGTTTGCCCATCCACGTCAGGGCCTCAGCCTGGCCGAAAGAAAG
AAATGGTCTGTGATCCCCCCAGCAGCAGCAGCAGCAGCAGCAGCAGCAGCAGCAGCAGCAGCAGCAGCAGCAGCAGCAGCATTCCCGGCTACAAGGACCC
TTCGAGCCCCGTTCGCCGGCCGCGGACCCGGCCCCTCCCTCCCCGGCCGCTAGGGGGCGGGCCCGGATCACAGGACTGGAGCTGGGCGGAGACCCACGC...