Repeat unit AC/GT repeats 4 times in the reference sequence.
...GCATAGTGGGTGGGTGGGAGGATGCGGGACTGGGGGCCGACCTTGCCTGAAATTCATGTGGGATCTCAGAGCAGCCACTGAATTGCTCTGTAGGGGGCTA
AATAGTGGCCCCCACAGATACACACACCCAGACAGAGCCTGTGAGCCAGACCTTATTTGGAGAAAAGGTCTTTGTAGATGTAATTAAGCATCTCAAGATG
GCATCATCTGGATTATGCGGTGGGCTGTAAGTCCTGTGATGTGTCTT...