Repeat unit -GC/GC- repeats 10 times in the reference sequence.
...CTGGTCCCACGGGAGGGCGGCTCCGGCAGGCGGGGGTAGGGAAGCTGGCGGGGAGCTGGGCAGGGCGCTGCAGCCGGCGCCAGCGCACTCACCCTCACAC
CCACACGCGCGCACTCGCAGCTGCTGCTGCTGCTGCTGCTGCTGCTGCTGCAGGAGGCTGGAGGCGGCTGGTGCATTAAAGGCGAGGCTCCTCCCAACCG
CGTCAGCAGCCCCACGACTCTTTCCCAGCAGCAGTGGTGGCCGAGGCAGAGGCTGCGGCTGCTCTTTGCTG...