Study on the single-nucleotide substitution (c.-16C to T) of the PURATROPHIN-1 gene in Chinese patients with spinocerebellar ataxia / 中华医学遗传学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To study the single-nucleotide substitution (c.-16C to T) of the PURATROPHIN-1 gene in spinocerebellar ataxia (SCA) patients in China.</p><p><b>METHODS</b>The single-nucleotide substitution (c.-16C to T) of the PURATROPHIN-1 gene was detected by PCR, digested with EcoN I, separated on 8% polyacrylamide gel in 68 probands of autosomal dominant SCA families and 119 sporadic SCA patients, who had been excluded CAG/CAA repeat expansion at the SCA1, 2, 3, 6, 7, 17 and dentatorubral-pallidolluysian atrophy (DRPLA) loci. The results were confirmed in four patients by direct sequencing.</p><p><b>RESULTS</b>The single-nucleotide substitution (c.-16C to T) of the PURATROPHIN-1 gene was not identified in authors' cohort.</p><p><b>CONCLUSION</b>The mutation of c.-16C to T of the PURATROPHIN-1 gene might be rare in SCA patients in China.</p>