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首页> 外文期刊>RNA biology >Subcellular localization of RNA degrading proteins and protein complexes in prokaryotes.
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Subcellular localization of RNA degrading proteins and protein complexes in prokaryotes.

机译：RNA降解蛋白质和蛋白质复合物在原核生物中的亚细胞定位。

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摘要

The archaeal exosome is a prokaryotic protein complex with RNA processing and degrading activities. Recently it was shown that the exosome is localized at the periphery of the cell in the thermoacidophilic archaeon Sulfolobus solfataricus. This localization is most likely mediated by the archaeal DnaG protein and depends on (direct or indirect) hydrophobic interactions with the membrane. A localization of RNA degrading proteins and protein complexes was also demonstrated in several bacteria. In bacteria a subcellular localization was also shown for substrates of these proteins and protein complexes, i.e. chromosomally encoded mRNAs and a small RNA. Thus, despite the missing compartmentalization, a spatial organization of RNA processing and degradation exists in prokaryotic cells. Recent data suggest that the spatial organization contributes to the temporal regulation of these processes.
机译：古细菌外泌体是具有RNA加工和降解活性的原核蛋白复合物。最近显示，外泌体位于嗜热古细菌Sulfolobus solfataricus中的细胞外围。这种定位很可能是由古细菌DnaG蛋白介导的，并且取决于与膜的（直接或间接）疏水相互作用。在几种细菌中还证实了RNA降解蛋白和蛋白复合物的定位。在细菌中，还显示了这些蛋白质和蛋白质复合物的底物的亚细胞定位，即染色体编码的mRNA和小RNA。因此，尽管缺少间隔，但是在原核细胞中存在RNA加工和降解的空间组织。最新数据表明，空间组织有助于这些过程的时间调节。

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