A T-]C MUTATION AT NT-8993 OF MITOCHONDRIAL-DNA IN A CHILD WITH LEIGH-SYNDROME

被引:90
作者
SANTORELLI, FM
SHANSKE, S
JAIN, KD
TICK, D
SCHON, EA
DIMAURO, S
机构
[1] COLUMBIA PRESBYTERIAN MED CTR,H HOUSTON MERRITT CLIN RES CTR MUSCULAR DYSTROPHY,DEPT NEUROL,NEW YORK,NY 10032
[2] COLUMBIA PRESBYTERIAN MED CTR,H HOUSTON MERRITT CLIN RES CTR MUSCULAR DYSTROPHY,DEPT GENET & DEV,NEW YORK,NY 10032
[3] CHILDRENS HOSP LOS ANGELES,DIV MED GENET,LOS ANGELES,CA 90027
关键词
D O I
10.1212/WNL.44.5.972
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
A 5-year-old child with clinical and radiologic evidence of Leigh syndrome (LS) showed a T-->C mutation at position nt 8993 in the mitochondrial DNA (instead of the more common T-->G substitution), resulting in an amino acid change from a highly conserved leucine to proline in subunit 6 of mitochondrial ATPase. The mutation was heteroplasmic and maternally inherited, and was present in high percentages in multiple tissues. This finding documents genetic heterogeneity of the ATPase 6 gene mutation associated with LS.
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页码:972 / 974
页数:3
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