Making sense of nonsense GABA(A) receptor mutations associated with genetic epilepsies.
Making sense of nonsense GABA(A) receptor mutations associated with genetic epilepsies.
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DOI:
10.1016/j.molmed.2009.07.003
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发表时间:
2009-09
影响因子:
13.6
通讯作者:
Macdonald RL
中科院分区:
文献类型:
--
作者:
Kang JQ;Macdonald RL
Nonsense mutations that generate premature translation-termination codons (PTCs) are responsible for about one-third of human genetic diseases. PTCs in both voltage- and ligand-gated ion channel genes, including sodium, potassium, nicotinic cholinergic receptor and GABAA receptor channel genes have been associated with genetic epilepsies, but the epilepsy syndromes they cause are variable. We recently proposed that two well-established molecular pathways, nonsense-mediated decay (NMD) and endoplasmic reticulum (ER) associated degradation (ERAD), determine the effects of PTCs in GABAA receptor subunit genes associated with genetic epilepsies on the cellular fates of mutant subunit mRNAs and proteins. Activation of these different molecular mechanisms may contribute partially to different clinical phenotypes in patients with GABAA receptor subunit gene PTCs, and thus we suggest that different approaches for treatment of their genetic epilepsies may be required.
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