|Number of repeats||Counts (alleles)||Percentage|
Overview of repeats
CAG repeat expansions in ATN1 gene are causing the dentatorubral-pallidoluysian atrophy (DRPLA) disease. Two studies have showed that in healthy individuals the repeat size varies from 7-23 repeats (Komure et al., 1995; Nagafuchi et al., 1994). In patients, repeat size has been observed to be between 49-90 (Komure et al., 1995; Nagafuchi et al., 1994; Sugiyama et al., 2020).