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Structure, alternative splicing, and expression of the human and mouse KCNIP gene family.

机译:人和小鼠KCNIP基因家族的结构,可变剪接和表达。

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摘要

Potassium channel-interacting proteins (KCNIPs, also named KChIPs) modulate A-type potassium channels and favor their surface expression. In addition, KCNIPs have been shown to interact with presenilins and also to function as transcriptional repressors. Here we describe the structures and alternative splicing of the human and mouse KCNIP genes, including novel splice variants for KCNIP1, KCNIP3, and KCNIP4, and show the expression of different KCNIP mRNAs in various mouse and human tissues and brain regions by RT-PCR. Furthermore, we describe the expression of KCNIP1, KCNIP2, KCNIP3, and KCNIP4 mRNAs in the adult mouse brain with in situ hybridization and show that all KCNIP mRNAs were expressed in the neurons of the mouse brain with specific patterns for each KCNIP. Our results show that alternatively spliced KCNIP mRNAs are expressed differentially and could contribute to the diversity of functions of the KCNIP proteins.
机译:钾通道相互作用蛋白(KCNIPs,也称为KChIPs)调节A型钾通道,并促进其表面表达。另外,已经显示出KCNIP与早老蛋白相互作用并且还起转录阻遏物的作用。在这里我们描述了人类和小鼠KCNIP基因的结构和选择性剪接,包括KCNIP1,KCNIP3和KCNIP4的新型剪接变体,并通过RT-PCR显示了不同的KCNIP mRNA在各种小鼠和人类组织以及大脑区域中的表达。此外,我们通过原位杂交描述了成年小鼠大脑中KCNIP1,KCNIP2,KCNIP3和KCNIP4 mRNA的表达,并显示了所有KCNIP mRNA在小鼠大脑神经元中均有表达,每种KCNIP都有特定的模式。我们的研究结果表明,剪接的KCNIP mRNA差异表达,可能有助于KCNIP蛋白功能的多样性。

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