Repeat unit TG/CA repeats 7 times in the reference sequence.
...GCGAAGGGGTGTGTGTGCACGTGCCAGTGTGTGAAGGCATGTGTGTGAGGGTGTGTATATGTGTGAGAGTGTGCACGTCTGTGAGTGCATGGCAAGGCCA
TTTGGAACGCGAGGGTGTATGTGTGTGTGTGTGAAATAGTGTGTGCGCATGTGTGAAGGCGTGTGTATGTGAGTGTGTGTGTGAGAGTGCGCATCAGTGA
GTGTGGGGGTGTGTGTGCGCGAGGGCGTGTGTGTGAGTGTGCGTCAGTGAGTG...