紫球海胆分离卵皮质对钙的摄取与释放
Uptake and release of calcium by isolated egg cortices of the sea urchin Paracentrotus lividus.
作者信息
Payan P, Girard J P, Sardet C, Whitaker M, Zimmerberg J
出版信息
Biol Cell. 1986;58(1):87-90. doi: 10.1111/j.1768-322x.1986.tb00490.x.
Abstract
Isolated cortices from sea urchin eggs accumulate calcium in a non-mitochondrial store at a rate dependent on ATP and enhanced by oxalate. Calcium efflux is increased by ionomycin and by A23187 which has been used as a parthenogenetic agent, but not by weak base (NH4Cl). Accumulated calcium is partially released by 1,4,5 inositol triphosphate.
摘要
海胆卵分离出的皮层在一个非线粒体储存库中以依赖于ATP的速率积累钙，草酸盐可增强这种积累。离子霉素和曾用作孤雌生殖剂的A23187可增加钙外流，但弱碱（氯化铵）则不能。积累的钙会被1,4,5-肌醇三磷酸部分释放。
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