期刊
PEDIATRIC NEUROLOGY
卷 36, 期 6, 页码 397-401出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.pediatrneurol.2007.02.011
关键词
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The objective was to identify arylsulfatase A mutations, if any, in five Chinese patients with metachromatic leukodystrophy. This would be the first such study in China. All eight exons and exon-intron boundaries of the arylsulfatase A gene (ARSA) were amplified with polymerase chain reaction, which was followed by direct DNA sequencing. Patient 1 exhibited a homozygous mutation at c.954G > A (p.W318X) in exon 5. Patient 2 exhibited compound heterozygous mutations, identified as one allele with the c.862C > T (p.R288C) missense mutation in exon 5 and the other allele with the c.1338dupC frameshift mutation in exon 8. Patient 3 exhibited only a c.179-180dupCA frameshift mutation in exon I in one allele. Patients 4 and 5 exhibited identical compound heterozygous mutations, identified as one allele with the c.296G > T (p.G99V) missense mutation and the other allele with the c.251G > A (p.R84Q) missense mutation in exon 2. Six DNA variants of the arylsulfatase A gene were identified: two novel frameshift mutations (c.179-180dupCA and c.1338dupC), one known nonsense mutation (p.W318X), and three known missense mutations (p.R84Q, p.G99V, and p.R288C). (c) 2007 by Elsevier Inc. All rights reserved.
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