XB-ART-25532
Biochem Biophys Res Commun
1990 Oct 15;1721:229-36.
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The effect of myo-inositol 1,4,5-trisphosphorothioate on Cl- current pattern and intracellular Ca2+ in the Xenopus laevis oocyte.
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Microinjection of myo-inositol 1,4,5-trisphosphate into voltage-clamped Xenopus laevis oocytes or the stimulation of the phosphatidylinositol cycle elicits a complex Ca2(+)-dependent Cl- current pattern. Microinjection of myo-inositol 1,3,4,5-tetrakisphosphate causes an immediate release of Ca2+, but elicits a different Cl- current pattern than myo-inositol 1,4,5-trisphosphate. We have studied the effects of myo-inositol 1,4,5-trisphosphorothioate, which can not be converted to myo-inositol 1,3,4,5-tetrakisphosphate. Myo-inositol 1,4,5-trisphosphorothioate caused an immediate release of intracellular Ca2+, as measured by fura-2 imaging. Myo-inositol 1,4,5-trisphosphorothioate generated a Cl- current pattern similar to myo-inositol 1,3,4,5-tetrakisphosphate, not myo-inositol 1,4,5-trisphosphate.
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???displayArticle.link??? Biochem Biophys Res Commun
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