Repeat unit GT/AC repeats 4 times in the reference sequence.
...GGCCTTCTGTGACTGTGCACTATTTTCCACGTGACGAGAACAACTCCAGAGCACATGAAAGTGCTGTGAATTGTGAAATCCATAATTGAAAGTGAGTGTT
AGAGAGGAGACGACTTTCCGTGTGTGTTGAGCCACGTAGCAAAGAAAAATGGTGCTCAGGGGGCTCTGCCTCGCACCTGGCTCTGCTGTGTTCCTCTGCA
AGTCACCTGCATGAATTTTGTCCAGATGGAATCGTAAAAATTCACCA...