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Analyses of the signal flow upon activation of ATP receptor channel by tandem repeat constructs

Analyses of the signal flow upon activation of ATP receptor channel by tandem repeat constructs
通过串联重复结构激活 ATP 受体通道后的信号流分析
批准号:
23659117
负责人:
KUBO Yoshihiro
金额:
$2.41万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Challenging Exploratory Research
财政年份:
2011
资助国家:
日本
项目状态:
已结题
起止时间:
2011 至 2012

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中文摘要
翻译
ATP受体通道P2X_2由三个亚基组成,但已知它可被两个ATP结合而激活。本研究的目的是了解两个三聚体的激活信号如何在三聚体中流动。通过建立一种方法来引入突变来控制三聚体中突变的数量,我们在三聚体中的不同氨基酸残基上引入了1、2或3个突变。结果表明,激活信号在两个ATP结合的亚基上向下流动到连接子水平,并在离子通道孔水平上扩散到三个亚基。
英文摘要
ATP receptor channel P2X_2 consists of three subunits, but it is known to be activated by binding of two ATP. The aim of this research was to understand how the activation signal by two ATP flows in the trimer. By establishing a method to introduce mutations controlling the number of mutations in the trimer, we introduced 1, 2 or 3 mutations at various amino acid residues in the trimer. The results suggested that the activation signal flows on the two ATP bound subunits down to the linker level and it spreads to three subunits at the ion channel pore level.
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会议论文
Analyses of the signal flow and subunits' contribution in the P2X_2 trimer upon voltage- and [ATP]-dependent activation by three tandem repeat constructs
三个串联重复结构在电压和 [ATP] 依赖性激活时分析 P2X_2 三聚体中的信号流和亚基贡献
DOI: --
发表时间: 2012
期刊:
影响因子: --
作者: [Batu Keceli, Yoshihiro Kubo]
通讯作者: Yoshihiro Kubo
Analyses of the signal flow and subunits' contribution in the P2X2 trimer upon voltage and [ATP]-dependent activation by three tandem repeat constructs Purine 2012 International Meeting
三个串联重复构建体在电压和 [ATP] 依赖性激活下分析 P2X2 三聚体中的信号流和亚基贡献 2012 年嘌呤国际会议
DOI: --
发表时间: 2012
期刊:
影响因子: --
作者: [藤田寿一, 加藤隆幸, 渡邊哲史, 高橋達治, 北川誠一, 藤井裕士ら, Yukiko Kurihara, Yoshihiro Kubo]
通讯作者: Yoshihiro Kubo
Structural rearrangements of the b-sheets linking the ATP binding site to the trans membrane domains upon P2X2 receptor channel gating
P2X2 受体通道门控时连接 ATP 结合位点与跨膜结构域的 b-sheet 的结构重排
DOI: --
发表时间: 2012
期刊:
影响因子: --
作者: [Batu Keceli, Yoshihiro Kubo]
通讯作者: Yoshihiro Kubo
DOI: --
发表时间: 2013
期刊:
影响因子: --
作者: [Yoshihiro Kubo, Batu Keceli]
通讯作者: Batu Keceli
共 6 条
    Analyses of structural rearrangements of membrane proteins by fluorescent unnatural amino acid scanning
    • 批准号:
      15K15036
    • 项目类别:
      Grant-in-Aid for Challenging Exploratory Research
    • 资助金额:
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    • 财政年份:
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    • 负责人:
      KUBO Yoshihiro
    • 依托单位:
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    • 批准号:
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    • 项目类别:
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    • 资助金额:
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    • 财政年份:
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    • 负责人:
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    • 依托单位:
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    海外基金