Repeat unit CCG/CGG repeats 16 times in the reference sequence.
...AGCCATAGGGCAGCGCCGCGGGCCCCGACGAGCTCTGCGCCGCTGCCGAGCAGGGGCTGCATTGCTTGGCGGCCTCTGCGCCCGCCGGGCCCGCCGGGCC
GGGACCTCCCGAGGACGACGCGGCGGCGGCGGCGGCGGCTGCAGCGGCAGCCGCGGCAGCAGCGGCGGCAGCCGACGGGGGCGCCTCCCCGGGGGCGCTG
CTGTAGGCGGACGCGGCTCCTGGCGCCAAGGGCGCCGGGTGCGCCATCAGGTTGCGGCACTGGTTGGCCGCGGCCGCCGCCGCAGCCGC...