The kinesin KIF21B participates in the cell surface delivery of γ2 subunit-containing GABAA receptors.
[No authors listed]
摘要
KIF21B, a kinesin family (KIF) protein, is a plus end-directed microtubule motor. The KIF21B gene is highly expressed in neuronal tissue and spleen and is a susceptibility locus for multiple sclerosis. KIF21B motility is regulated through TRIM3, a member of the cytoskeleton-associated-recycling or transport (CART) complex, involved in vesicular receptor recycling. Here we show that the GABAA receptor γ2-subunit co-precipitates and co-localizes with KIF21B in cultured hippocampal neurons. Knockdown of KIF21B gene expression through small hairpin (sh) RNA reduces the number of γ2-subunit-containing GABAA receptor (GABAARs) clusters in neurites and at the cell surface. Our data suggest that KIF21B participates in the delivery of GABAAR transport vesicles into dendrites.
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基因功能
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原始数据
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文献解读
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