Relationship between glycogen accumulation and the laforin dual specificity phosphatase.
Relationship between glycogen accumulation and the laforin dual specificity phosphatase.
复制标题
糖原积累与拉福林双特异性磷酸酶之间的关系。
DOI:
10.1016/j.bbrc.2006.09.091
复制
发表时间:
2006
影响因子:
3.1
通讯作者:
Roach,PeterJ
中科院分区:
文献类型:
--
作者:
Wang,Wei;Parker,GretchenE;Skurat,AlexanderV;Raben,Nina;DePaoli-Roach,AnnaA;Roach,PeterJ
Laforin, encoded by the EPM2A gene, is a dual specificity protein phosphatase that has a functional glycogen-binding domain. Mutations in the EPM2A gene account for around half of the cases of Lafora disease, an autosomal recessive neurodegenerative disorder, characterized by progressive myoclonus epilepsy. The hallmark of the disease is the presence of Lafora bodies, which contain polyglucosan, a poorly branched form of glycogen, in neurons and other tissues. We examined the level of laforin protein in several mouse models in which muscle glycogen accumulation has been altered genetically. Mice with elevated muscle glycogen have increased laforin as judged by Western analysis. Mice completely lacking muscle glycogen or with 10% normal muscle glycogen had reduced laforin. Mice defective in the GAA gene encoding lysosomal α-glucosidase (acid maltase) overaccumulate glycogen in the lysosome but did not have elevated laforin. We propose, therefore, that laforin senses cytosolic glycogen accumulation which in turn determines the level of laforin protein.
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影响因子:
--
作者:
E. Chan;D. Andrade;S. Franceschetti;B. Minassian
通讯作者:
B. Minassian
DOI:
--
发表时间:
1968
期刊:
The Lancet
影响因子:
--
作者:
R. Salter
通讯作者:
R. Salter
影响因子:
4.8
作者:
Aschenbach, WG;Suzuki, Y;DePaoli-Roach, AA
通讯作者:
DePaoli-Roach, AA
影响因子:
3.5
作者:
Fernández-Sánchez, ME;Criado-García, O;de Córdoba, SR
通讯作者:
de Córdoba, SR
DOI:
10.1073/pnas.93.20.10707
发表时间:
1996-10-01
影响因子:
11.1
作者:
Manchester, J;Skurat, AV;Lawrence, JC
通讯作者:
Lawrence, JC