Role of Parvalbumin in Skeletal Muscle Relaxation

Role of Parvalbumin in Skeletal Muscle Relaxation
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DOI:
10.1152/physiologyonline.1996.11.6.249
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发表时间:
1996-12
期刊:
影响因子:
8.4
通讯作者:
J. Rall
J. Rall
中科院分区:
医学1区
文献类型:
--
作者:
J. Rall

文献摘要

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小清蛋白是一种可溶性细胞内钙缓冲剂,以高浓度存在于整个动物界快速收缩的骨骼肌中。在青蛙骨骼肌中,肌浆网钙泵的药理学或低温抑制揭示了小清蛋白螯合钙并以由镁从小清蛋白解离所确定的速率促进松弛。
Parvalbumin, a soluble intracellular calcium buffer, is present in high concentrations in fast-contracting skeletal muscles across the animal kingdom. In frog skeletal muscle, pharmacological or low-temperature inhibition of the sarcoplasmic reticulum calcium pump reveals that parvalbumin sequesters calcium and promotes relaxation at a rate determined by magnesium dissociation from parvalbumin.