ウニ発生における細胞質塩基性蛋白の変化 II.

概要

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It is generally recognized that an unusually large amount of basic proteins is localized in the cytoplasm of eggs or embryos. The present investigation was carried out to demonstrate changes in intracellular localization and properties of such basic proteins during development of the sea urchin, Anthocidaris crassispina. The total amount of basic proteins showed a transitory increase to about 146% at hatching blastula and then decreases rapidly through subsequent stages of development to pluteus to about 13% of the initial content. The decrease in amount was mainly attributable to that of the 105,000g supernatant basic proteins. Further, a marked difference was observed in gel electrophoresis of the 105,000g supernatant basic proteins between morula, gastrula and pluteus. It was suggested that most of the basic proteins became more histone-like by increasing their electrophoretic mobilities. Also, the electrophoretic patterns of the nuclear basic proteins showed some changes in parallel during these developmental periods.
社団法人日本動物学会の論文
1971-04-15