Calcium regulation of the first cell cycle of the sea urchin embryo.
Calcium regulation of the first cell cycle of the sea urchin embryo.
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海胆胚胎第一个细胞周期的钙调节。
DOI：
10.1111/j.1749-6632.1990.tb21680.x
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发表时间：
1990
影响因子：
5.2
通讯作者：
Steinhardt,RA
中科院分区：
文献类型：
--
作者：
Steinhardt,RA
Changes in intracellular free calcium have been implicated as possible signals in the regulation of several stages of mitosis in both animal and plant cells.'-* Although calcium signals have been associated with all the major structural transitions in mitosis, analysis of their regulatory role has proceeded furthermost in the case of nuclear envelope breakdown (NEB). Recently, evidence has been presented that specifically implicates transient increases in intracellular free calcium [Ca2+ Ii in the timing of NEB in the sea urchin embryo. It has been demonstrated that a calcium transient immediately precedes NEB in sea urchin embryos and that buffering with EGTA or BAPTA will prevent NEB. 9 Additionally, premature calcium rises can trigger early NEB, provided there has been an adequate period of protein synthesis?" These results have usefully been extended in similar experiments on early division cycles in the sand dollar embryo." This paper briefly reviews our evidence implicating calcium in regulation of the first cell cycle in the embryo of Lytechinus pictus and discusses some more recent data pointing to a possible target for the rise in free intracellular calcium triggering NEB. The work reviewed herein is heavily dependent on the efforts of my collaborators, Janet Alderton, Celia Baitinger, Martin Poenie, Howard Schulman, and Roger Tsien, but I, not they, am responsible for any errors in this summary.
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DOI：
--
发表时间：
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期刊：
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DOI：
--
发表时间：
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期刊：
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