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首页> 外文期刊>Ukrainian Biochemical Journal >The calixarene C-107 increases the affinity of the Na(+),K(+)-АТРase activity in plasmatic membrane of smooth muscle cells to the ouabain
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The calixarene C-107 increases the affinity of the Na(+),K(+)-АТРase activity in plasmatic membrane of smooth muscle cells to the ouabain

机译:杯芳烃C-107增加了平滑肌细胞质膜中Na(+),K(+)-АТРase活性与哇巴因的亲和力

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In the experiments carried out with the suspension of the myometrium cell plasmatic membranes treated with 0.1% digitonin solution we investigated the influence of сalixarene С-107 (5,17-diamino(2-pyridyl)methylphosphono-11,23-di-tret-butyl-26,28-dihydroxy-25,27-dipropoxycalix[4]arene) on the Nаsup+/sup,Ksup+/sup-АТРase activity. It was shown that this calixarene increased the affinity of the enzyme for the sodium pump conventional inhibitor – ouabain: the magnitudes of the seeming constant of inhibition Isub0.5/sub changed from 26.9 ± 1.3 mM to 10.9 ± 0.6 mM. However the ouabain itself did not influence on the affinity of the Nаsup+/sup,Ksup+/sup-АТРase for сalixarene С-107.
机译:在用0.1%洋地黄皂苷溶液处理的子宫肌层细胞质膜悬浮液进行的实验中,我们研究了沙利西林С-107(5,17-diamino(2-pyridyl)methylphosphono-11,23-di-tret- Nau + ,K + -АТРase活性上的丁基26,28-dihydroxy-25,27-dipropoxycalix [4] arene)。结果表明,该杯芳烃增加了酶对钠泵常规抑制剂哇巴因的亲和力:抑制表观常数I 0.5 的大小从26.9±1.3 mM变为10.9±0.6 mM。然而,哇巴因本身不影响Nal + ,K + -АТРase与с烯芳烃С-107的亲和力。

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