The effect of partial removal of troponin I and C on the Ca2+-sensitive ATPase activity of rabbit skeletal myofibrils1

Fumie Shiraishi, Kazuhiko Yamamoto

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The effect of partial removal of troponin I and C on the profiles of Ca2+-sensitive ATPase activity in rabbit skeletal myofibrils was investigated by replacing the troponin C.I. T-complex in the myofibrils with exogenously added troponin T under the same conditions as those reported previously [Shiraishi et al. (1992) J. Biochem. 111, 61-65]. During the course of the troponin T treatment, the level of the ATP hydrolysis at low Ca2+concentrations was elevated and the pCa for half maximum activation increased, while the cooperativity decreased. These changes in the parameters of the ATPase were correlated with the extent of the troponin I removal from myofibrils.

元の言語英語
ページ(範囲)171-173
ページ数3
ジャーナルJournal of biochemistry
115
発行部数1
DOI
出版物ステータス出版済み - 1 1994

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology

フィンガープリント The effect of partial removal of troponin I and C on the Ca<sup>2+</sup>-sensitive ATPase activity of rabbit skeletal myofibrils<sup>1</sup>' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

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