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학술저널
가토심장(家兎心臟) 및 골격근(骨格筋)에서 분리(分離)한 Microsome 분획내(分劃內) ATPase 활성도(活性度)에 대(對)한 Mg<sup>++</sup>, Ca<sup>++</sup>, Na<sup>+</sup> 및 K<sup>+</sup>의 영향(影響)
The influence of Calcium, Magnesium, Sodium and Potassium Ion on the Adenosintriphosphatase activity of heart and skeletal microsomal fraction of rabbits.
The microsomal fraction is isolated from rabbit heart and skeletal muscle. The fraction is found to contain the Na<sup>+</sup>-and K<sup>+</sup>-activated ATPase. The maximal ATPase activity is obtained in Na<sup>+</sup> and K<sup>+</sup> concentration of 100 mM. Calcium itself stimulates the Na<sup>+</sup>-and K<sup>+</sup>-activated portion of ATPase in the presence of Mg<sup>++</sup>. However, calcium does not stimulate ATPase in the absence of Mg<sup>++</sup>.