Role for α-Dystrobrevin in the Pathogenesis of Dystrophin-Dependent Muscular Dystrophies
Role for α-Dystrobrevin in the Pathogenesis of Dystrophin-Dependent Muscular Dystrophies
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α-Dystrobrevin 在肌营养不良蛋白依赖性肌营养不良症发病机制中的作用
DOI:
10.1203/00006450-199904020-00141
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发表时间:
1999
影响因子:
3.6
通讯作者:
J. Sanes
中科院分区:
文献类型:
--
作者:
R. Grady;J. Sanes
A dystrophin-containing glycoprotein complex (DGC) links the basal lamina surrounding each muscle fibre to the fibre's cytoskeleton, providing both structural support and a scaffold for signalling molecules. Mutations in genes encoding several DGC components disrupt the complex and lead to muscular dystrophy. Here we show that mice deficient in alpha-dystrobrevin, a cytoplasmic protein of the DGC, exhibit skeletal and cardiac myopathies. Analysis of double and triple mutants indicates that alpha-dystrobrevin acts largely through the DGC. Structural components of the DGC are retained in the absence of alpha-dystrobrevin, but a DGC-associated signalling protein, nitric oxide synthase, is displaced from the membrane and nitric-oxide-mediated signalling is impaired. These results indicate that both signalling and structural functions of the DGC are required for muscle stability, and implicate alpha-dystrobrevin in the former.
DOI:
10.1074/jbc.272.50.31561
发表时间:
1997
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Peters,MF;O'Brien,KF;Sadoulet-Puccio,HM;Kunkel,LM;Adams,ME;Froehner,SC
通讯作者:
Froehner,SC
影响因子:
3.5
作者:
Sadoulet-Puccio,HM;Khurana,TS;Cohen,JB;Kunkel,LM
通讯作者:
Kunkel,LM