Apart from HTT, we searched the PolyASite 2.0 database [61] for information concerning alternative polyadenylation sites in eight other mRNAs: AR, ATN1, ATXN1, ATXN2, ATXN3, CACNA1A, ATXN7, and TBP, whose genes contain mutations responsible for spinal and bulbar muscular atrophy (SBMA), dentatorubral-pallidoluysian atrophy (DRPLA), and spinocerebellar ataxia types 1, 2, 3, 6, 7, and 17 (SCA1, SCA2, SCA3, SCA6, SCA7, and SCA17, respectively). Here, TBP is linked to spinocerebellar ataxia type 1.