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Structure and function of voltage-dependent Ca2+channels Takashi Kurihara 1 , Tsutomu Tanabe 1 1Department of Pharmacology and Neurobiology, Graduate School of Madicine, Tokyo Medical and Dental University Keyword: 電位依存性Ca2+チャネル , サブユニット構成 , 遺伝子欠損マウス pp.181-191
Published Date 2003/4/10
DOI https://doi.org/10.11477/mf.1431100296
  • Abstract
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 Ca2+entry through voltage-dependent Ca2+channels(VDCCs)regulates various aspects of physiological function, including neurotransmitter release, regulation of cell membrane excitability and control of gene expression. VDCCs constitute a large family of multi-subunit protein complexes composed of at least four subunits, designatedα1, α2, βandδ. During the past decade, a number of genes encoding these subunits have been cloned, and cDNA expression studies using heterologous expression systems have revealed intricate nature of subunit interaction, and many biophysical aspects of channel function. In recent years, an entirely new strategy has been introduced in attempt of clarifying the physiological role of each VDCCs and this has proven to be very useful in defining previously unknownin vivofunctions of VDCCs. In this article, we briefly review a variety of phenotypes exhibited by mice in which one of the VDCC subunits has been deleted by gene targeting technology, and discuss possible native functions of the VDCC containing each of these subunits.


Copyright © 2003, Igaku-Shoin Ltd. All rights reserved.

基本情報

電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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