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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >CLONING AND EXPRESSION OF TWO BRAIN-SPECIFIC INWARDLY RECTIFYING POTASSIUM CHANNELS
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CLONING AND EXPRESSION OF TWO BRAIN-SPECIFIC INWARDLY RECTIFYING POTASSIUM CHANNELS

机译:两种脑内向性钾通道的克隆和表达

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摘要

We have cloned two inwardly rectifying K+ channels that occur selectively in neurons in the brain and are designated BIRK (brain inwardly rectifying K+) channels. BIRK1 mRNA is extremely abundant and is enriched in specific brainstem nuclei, BIRK1 displays a consensus phosphate-binding loop, and expression in Xenopus oocytes has shown that its conductance is inhibited by ATP and adenosine 5'-[gamma-thio] triphosphate. BIRK2 is far less abundant and is selectively localized in telencephalic neurons. BIRK2 has a consensus sequence for cAMP-dependent phosphorylation. [References: 36]
机译:我们已经克隆了两个在大脑神经元中选择性发生的内向整流K +通道,被称为BIRK(脑内向整流K +)通道。 BIRK1 mRNA非常丰富,并且富含特定的脑干核,BIRK1显示出共有的磷酸盐结合环,在非洲爪蟾卵母细胞中的表达表明其电导被ATP和5'-γ-硫代腺苷三磷酸所抑制。 BIRK2远不那么丰富,并且选择性定位在端脑神经元中。 BIRK2具有cAMP依赖性磷酸化的共有序列。 [参考:36]

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