Investigating cell autonomy in microorganisms.

Investigating cell autonomy in microorganisms.
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DOI:
10.1007/s00294-022-01231-5
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发表时间:
2022-04
期刊:
影响因子:
2.5
通讯作者:
--
中科院分区:
生物学3区
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--
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微生物中的细胞-细胞信号仍然没有得到很好的描述。在这篇方法论文中,我们描述了一种检测细胞-非自主遗传效应,特别是细胞-细胞信号的遗传程序,称为嵌合菌落分析(CCA)。CCA测量基因对邻近细胞生物反应的影响。这种方法可以测量一系列生物学活动的细胞自主性,包括转录或蛋白质积累、亚细胞定位和细胞分化。到目前为止,CCA已经专门用于研究萌芽酵母中的菌落模式。为了证明该分析的更广泛的潜力,我们将该分析应用于另外两个系统:Grr1对酵母中GAL1转录的葡萄糖抑制的影响和rpsL对大肠杆菌中终止密码子翻译通读的影响。我们还描述了标准CCA的变体,这些变体解决了细胞-细胞信号的特定方面,并描述了这种分析的基本控制。最后,我们讨论了共同国家评估的补充方法。综上所述,这篇论文展示了遗传分析如何揭示和探索细胞-细胞信号在微生物过程中的作用。
Cell–cell signaling in microorganisms is still poorly characterized. In this Methods paper, we describe a genetic procedure for detecting cell-nonautonomous genetic effects, and in particular cell–cell signaling, termed the chimeric colony assay (CCA). The CCA measures the effect of a gene on a biological response in a neighboring cell. This assay can measure cell autonomy for range of biological activities including transcript or protein accumulation, subcellular localization, and cell differentiation. To date, the CCA has been used exclusively to investigate colony patterning in the budding yeast Saccharomyces cerevisiae. To demonstrate the wider potential of the assay, we applied this assay to two other systems: the effect of Grr1 on glucose repression of GAL1 transcription in yeast and the effect of rpsL on stop-codon translational readthrough in Escherichia coli. We also describe variations of the standard CCA that address specific aspects of cell–cell signaling, and we delineate essential controls for this assay. Finally, we discuss complementary approaches to the CCA. Taken together, this Methods paper demonstrates how genetic assays can reveal and explore the roles of cell–cell signaling in microbial processes.
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