Repeat unit CGG/CCG repeats 4 times in the reference sequence.
...CCGACAGCTCCTCCAGCTTACTGTCCCTTAAGTTCAGGTAGTGTGTCTGCTTGTCCTTCCCCTGCCCTGGGGTATCTCAGCCCCCACCATTTAGAGAAAG
GGACTGGGAGTGGCAAGGCCGGCGGCGGCGGCCACAGTGGTTGCAGAGGCCGTGGCTGCGGGCAGCGCCTCCAGGGACAGGCGGCCTCAGACCAGGGAGG
GCTTTAGTGTCCACAGGCAGACCGAGTTTGTCTCCCAGCTCCATCACTTTTG...