Voltage dependence of the pattern and frequency of discrete Ca~2+ release events after brief repriming in frog skeletal muscle

Michael G. Klein; Alain Lacampagne; Martin F. Schneider

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Voltage dependence of the pattern and frequency of discrete Ca~2+ release events after brief repriming in frog skeletal muscle

机译：青蛙骨骼肌短暂启动后离散Ca〜2 +释放事件的模式和频率的电压依赖性

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Applying a brief repolarizing pre-pulse to a depolarized frog skeletal muscle fiber restores a small frac- tion of the transverse tubule membrane voltage sensors from the inactivated state. During a subsequent depolarizing test pulse we detected brief, highly localized elevations of myo- plasmic Ca~2+ concentration (Ca~2+ "sparks") initiated by restored voltage sensors in individual triads at all test pulse voltages. The latency histogram of these events gives the gating pattern of the sarcoplasmic reticulum (SR) calcium release channels controlled by the restored voltage sensors. Both event frequency and clustering of events near the start of the test pulse increase with test pulse depolarization.

机译：对已去极化的青蛙骨骼肌纤维施加短暂的重新极化预脉冲，可将非激活状态的横向肾小管膜电压传感器恢复为一小部分。在随后的去极化测试脉冲中，我们检测到在所有测试脉冲电压下，由恢复的电压传感器在各个三元组中引起的肌浆Ca〜2 +浓度（Ca〜2 +“火花”）的短暂而高度局部的升高。这些事件的潜伏时间直方图给出了由恢复的电压传感器控制的肌质网（SR）钙释放通道的门控模式。随着测试脉冲去极化，事件频率和在测试脉冲开始附近的事件聚类都增加。

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《Proceedings of the National Academy of Sciences of the United States of America》 |1997年第20期|p.11061-11066|共6页
作者
Michael G. Klein; Alain Lacampagne; Martin F. Schneider;
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收录信息美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
原文格式 PDF
正文语种 eng
中图分类自然科学总论;
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1. Recruitment of Ca(2+) release channels by calcium-induced Ca(2+) release does not appear to occur in isolated Ca(2+) release sites in frog skeletal muscle. [J] . Pape PC The Journal of Physiology . 2002,第Pta3期

机译：通过钙诱导的Ca（2+）释放招募的Ca（2+）释放通道似乎不在青蛙骨骼肌中孤立的Ca（2+）释放位点中发生。
2. A repetitive mode of activation of discrete Ca2+ release events (Ca2+ sparks) in frog skeletal muscle fibres. [J] . Klein MG, Lacampagne A, Schneider MF The Journal of Physiology . 1999,第Pta2期

机译：青蛙骨骼肌纤维中离散Ca2 +释放事件（Ca2 +火花）激活的重复模式。
3. Modulation of the Frequency of Spontaneous Sarcoplasmic Reticulum Ca2+ Release Events (Ca2+ Sparks) by Myoplasmic [Mg2+] in Frog Skeletal Muscle [J] . Alain Lacampagne, Michael G. Klein, Martin F. Schneider The Journal of general physiology . 1998,第2期

机译：青蛙骨骼肌中肌质[Mg2 +]对自发性肌浆网Ca2 +释放事件（Ca2 +火花）的频率的调节
4. Dimensions of calcium release domains in frog skeletal muscle fibers [C] . Julio L. Vergara, Marino DiFranco, David Novo Society of Photo-Optical Instrumentation Engineers Conference on Biomarkers and Biological Spectral Imaging . 2001

机译：青蛙骨骼肌纤维中钙释放域的尺寸
5. Phosphorylated Intermediates of Ca＾<2+> ,Mg＾<2+> -Dependent ATPase of the Sarcoplasmic Reticulum from Skeletal Muscle [D] . Takisawa, Haruhiko -1

机译：骨骼肌肌质网Ca ＾ 2 +，Mg ＾ 2 +-依赖性ATP酶的磷酸化中间体
6. Voltage dependence of the pattern and frequency of discrete Ca2+ release events after brief repriming in frog skeletal muscle [O] . Michael G. Klein, Alain Lacampagne, Martin F. Schneider 1997

机译：青蛙骨骼肌短暂启动后离散Ca2 +释放事件的模式和频率的电压依赖性
7. Repriming and activation alter the frequency of stereotyped discrete Ca2+ release events in frog skeletal muscle. [O] . Lacampagne, A, Lederer, W J, Schneider, M F, 1996

机译：引发和激活改变了青蛙骨骼肌中刻板的离散Ca2 +释放事件的频率。
8. Model of Ca(2+) Concentration Controlled by Sarcoplasmic Reticulum of Skeletal Muscle, Using the State Transition. [R] . Yokota, M., Yokota, Y. 2001

机译：骨骼肌肌浆网控制Ca（2+）浓度模型的状态转换。

Voltage dependence of the pattern and frequency of discrete Ca~2+ release events after brief repriming in frog skeletal muscle

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