<紀要論文>
Insect Cell Extract Preparation by the Nitrogen Disruption Method for Cell-Free Translation

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概要 An insect cell extract for cell-free translation was prepared using a Mini-Bomb cell disruption chamber, a unique device which disrupts biological materials by altering the pressure on these materials.... The highest potential extract  for cell-free translation was prepared from the cell suspension at a density of 1.0×10^8 cells/ml, then disrupted at a nitrogen pressure of 10 kg/cm^2. Furthermore, synthesized proteins were stable in this extract, but were degraded by proteinase in an extract prepared with a Potter-Elvehjem homogenizer. The insect can extract showed efficient activity for translation of protein 2a and coat protein of the brome mosaic virus, while inefficiently translating protein 1a and protein 3a. On the other hand, mainly protein 3a and coat protein were translated in a wheat germ system, while mainly proteins 2a and 3a were translated in a rabbit reticulocyte system. The insect cell-free system appears to possess an unusual property for enhancing translation of exogenous mRNA, making it different from the rabbit reticulocyte and wheat germ systems.続きを見る

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登録日 2012.08.02
更新日 2021.02.05

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