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. 2014 May 28;15(Suppl 7):S11. doi: 10.1186/1471-2105-15-S7-S11

Table 1.

Length of poly-Qs in polyglutamine diseases.

Gene Wild-type allele
repeat number		 Mutant allele
repeat number
SCA1 ATXN1 6-39 41-83
SCA2 ATXN2 13-31 > = 32
SCA3 ATXN3 12-43 60-89
SCA6 CACNA1A <18 20-33
SCA7 ATXN7 <19 36-460
SCA8 ATXN8 15-50a 80-250a
SCA17 TBP 25-42 49-66
HD HTT 10-26 >40
DRPLA ATN1 6-35 >48
SBMA AR < =36 >38

a The non-coding gene ATXN8OS gene may contribute to SCA8 pathogenesis. The number of CAG repeats in normal and mutant ATXN8 are assumed to be the same as the number of CTG repeats in normal and mutant ATXN8OS, as in [4].