Structural diversity of L-type Ca^<2+> channel in sinoatrial node-the possibility of Cav-Cav interaction-
Structural diversity of L-type Ca^<2+> channel in sinoatrial node-the possibility of Cav-Cav interaction-
批准号:
21790199
负责人:
TOYODA Futoshi
金额:
$2.75万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Young Scientists (B)
财政年份:
2009
资助国家:
日本
项目状态:
已结题
起止时间:
2009 至 2010
中文摘要
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英文摘要
In the present study, we examined the possibility of the functional assembly of Cav1.2 and Cav1.3 subunits to yield the sustained inward Na^+ current (I_<st>), a pacemaker current in sinoatrial node. Heterologous coexpression of Cav1.2 and Cav1.3 in HEK cells resulted in an ensemble of Ca^<2+> currents attributed to each Cav channel. On the other hand, the chimeric channel consisting of repeat I and II from Cav1.2 (or Cav1.3) and repeat III and IV from Cav1.3 (or Cav1.2) elicited a rapidly inactivating Ca^<2+> current but failed to evoke a Na^+ current similar to I_<st>. Taken together, it is not likely that the heteromeric assembly of Cav1.2 and Cav1.3 subunits underlies I_<st> in sinoatrial node.
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Generation of sodium-permeable CaV1.3 channel : insights into the molecular basis for the sustained inward current in cardiac pacemaker cells
钠渗透性 CaV1.3 通道的产生:深入了解心脏起搏细胞持续内向电流的分子基础
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
[Toyoda F, Ding WG, Matsuura H., Toyoda F]
通讯作者:
Toyoda F
NaA^+透過性CaV1.3チャネルの作製-I_<st>の分子基盤の解明を目指して-
NaA^+可渗透CaV1.3通道的制备 - 旨在阐明I_<st>的分子基础 -
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
[Toyoda F, Ding WG, Matsuura H., Toyoda F, 豊田太・丁維光・松浦博]
通讯作者:
豊田太・丁維光・松浦博
DOI:
10.1016/j.jacc.2009.06.005
发表时间:
2009-08-25
期刊:
JOURNAL OF THE AMERICAN COLLEGE OF CARDIOLOGY
影响因子:
24
作者:
[Nishio, Yukiko, Makiyama, Takeru, Horie, Minoru]
通讯作者:
Horie, Minoru
DOI:
10.1007/s00232-010-9257-2
发表时间:
2010-06-01
期刊:
JOURNAL OF MEMBRANE BIOLOGY
影响因子:
2.4
作者:
[Toyoda, Futoshi, Ding, Wei-Guang, Matsuura, Hiroshi]
通讯作者:
Matsuura, Hiroshi
Generation of sodium-permeable CaV1.3 channel : insights into the molecular basis for the sustained inward current in cardiac pacemaker cells.
钠渗透性 CaV1.3 通道的生成:深入了解心脏起搏器细胞中持续内向电流的分子基础。
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
[Toyoda F, Ding WG, Matsuura H.]
通讯作者:
Matsuura H.
共 19 条
Investigation on possible link between Ist and CaV1.3 RNA editing
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批准号:23590258
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项目类别:Grant-in-Aid for Scientific Research (C)
-
资助金额:$3.41万
-
财政年份:2011
-
负责人:TOYODA Futoshi
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依托单位:
海外基金