Linkage between Isomerization of Phosphoenzyme Intermediate and Calcium Transport in Sarcoplasmic Reticulum Calcium Pump
Linkage between Isomerization of Phosphoenzyme Intermediate and Calcium Transport in Sarcoplasmic Reticulum Calcium Pump
批准号:
20570102
负责人:
DAIHO Takashi
金额:
$3.16万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2008
资助国家:
日本
项目状态:
已结题
起止时间:
2008 至 2010
中文摘要
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英文摘要
Ca^<2+> is transported by sarcoplasmic reticulm Ca^<2+>-pump through formation and hydrolysis of phosphoenzyme intermediate (EP) phosphorylated with ATP. Ca^<2+> ions bound to EP from cytoplasm are released into lumen in its isomerization (E1P・Ca_2→E2P). I found structural elements essential for the isomerization, and found a new EP intermediate (E2P・Ca_2) between these two EPs. To perform atomic or other structural analysis, I then developed stable analogs for E1P・Ca_2 and E2P・Ca_2. Furthermore, I have elucidated some new roles of the K+ ion bound to EP during Ca^<2+> transport and the mechanism of pump activation by high-concentration of ATP.
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筋小胞体Ca^<2+>-ATPaseのリン酸化中間体転換とCa^<2+>輸送;細胞質領域Actuatorドメインと膜貫通へリックスM1 を結ぶループの役割
肌浆网Ca^2+-ATP酶的磷酸化中间体转化和Ca^2+转运;连接胞质区致动器结构域和跨膜螺旋M1的环的作用;
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
[大保貴嗣, Stefania Danko, 山崎和生, 鈴木裕]
通讯作者:
鈴木裕
筋小胞体Ca^<2+>-ATPaseのE2PCa_2におけるTyr^<122>-Hydrophobic clusterの果たす役割について
Tyr^<122>-疏水簇在肌浆网Ca^<2+>-ATP酶E2PCa_2中的作用
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
[H., Yamasaki, H., Nakamura, Y., Takano, 山崎和生]
通讯作者:
山崎和生
Roles of Tyr^<122>-hydrophobic Cluster and K^+ Binding in Ca^<2+>-releasing Process of ADP-insensitive Phosphoenzyme of Sarcoplasmic Reticulum Ca^<2+>-ATPase
Tyr^<122>-疏水簇和K^结合在肌浆网ADP不敏感磷酸酶Ca^<2>-释放过程中的作用Ca^<2>-ATP酶
DOI:
--
发表时间:
2008
期刊:
The Journal of Biological Chemistry 283(43)
影响因子:
--
作者:
[Kazuo Yamasaki, Guoli Wang, Takashi Daiho, Stefania Danko, and Hiroshi Suzuki]
通讯作者:
and Hiroshi Suzuki
筋小胞体Ca^<2+>-ATPaseのリン酸化中間体転換とCa^<2+>輸送;細胞質領域アクチュエータードメインと膜貫通ヘリックスを結ぶループの役割
肌浆网Ca ^ 2+ -ATP酶的磷酸化中间体转化和Ca ^ 2+ 运输
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
[N.Yanagi, M.Niwa, Y.Sakurai, A.Nakajima, K.Kanaori, K.Tajima, 大保貴嗣]
通讯作者:
大保貴嗣
筋小胞体Ca^<2+>-ATPaseのリン酸化中間体の転換およびCa^<2+>輸送におよほすヌクレオチドの顕著な効果
核苷酸对肌浆网Ca^2+-ATP酶磷酸化中间体转化和Ca^2+转运的显着影响
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
[櫻井康博, 金折賢二, 田嶋邦彦, 大保貴嗣]
通讯作者:
大保貴嗣
共 40 条
Structure changs in transport sites by phosphoenzyme isomerization of sarcoplasmic reticulum Ca2+ pump
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批准号:23570130
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$3.49万
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财政年份:2011
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负责人:DAIHO Takashi
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依托单位:
Conformatioanl Change in Phosphorylated Intermediate of Sarcoplasmic Reticulum Calcium Pump during Calcium Transport
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批准号:18570102
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.49万
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财政年份:2006
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负责人:DAIHO Takashi
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依托单位:
Transmission of coupling energy from catalytic site to Ca^<2+> transport sites in endoplasmic reticulum calcium pump
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批准号:16570091
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.43万
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财政年份:2004
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负责人:DAIHO Takashi
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依托单位:
Mechanism of Coupling ATP hydrolysis to Ca^<2+> transport in sarcoplasmic reticulum Ca^<2+>-ATPase
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批准号:14580619
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.37万
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财政年份:2002
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负责人:DAIHO Takashi
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依托单位:
Stabilization of Folding of Sarcoplasmic Reticulum Calcium Pump by the N-terminal Domain
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批准号:12680602
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.3万
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财政年份:2000
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负责人:DAIHO Takashi
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依托单位:
Structure and Function of the Region Near Phosphorylation Site of Sarcoplasmic Reticulum Calcium Pump
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批准号:10680576
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项目类别:Grant-in-Aid for Scientific Research (C)
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资助金额:$2.05万
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财政年份:1998
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负责人:DAIHO Takashi
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依托单位:
海外基金