Repeat unit GT/AC repeats 4 times in the reference sequence.
...CCCGCCCCTGCAGACTCCCCCACACTTTTGTTACGTGCACAGCTCCTGAGAAAAGCCTTCTAAGGAAGCTTGAGCTGCTGCGCATTCTGCAAGCAGCCAT
TGTGCATTTCTGAAACGAAGTGTGTGTCCAGTGCTGTGGGTTCTGCTCACTGAACACTCTCGTGCGGGGAATGCTCATGTTCCTCCACAGAAAGGCAGAA
GCAGAGCTGGCACAGTTCCTTCCCAGCTGGCAGCCCAACCCCAGACC...