Repeat unit TG/CA repeats 4 times in the reference sequence.
...CAAACCCCATTCTACAGATTTGGAAACTGAGGGCAGAGGTGAGTGGGCGCCAGGGCCTGAGCAGCGTGGACAGGGGGTCCGGCCATGGCCCTCTGCAGCG
CCTCCTGCCGGGTAGGGCCTGTGTGTGGAAGGGGGCTGGCCCTGTGAACCCCAGGGGTGTGACCCGGTGACCTTTGCTCCCAGAATCCCTCACCAGAGTC
CAACTGTCACCGGATCTCCTGGCGACCCTGCCTGAGCCAGCCTCCCC...