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A post-translational modification code for transcription factors: sorting through a sea of signals

机译:转录因子的翻译后修饰代码:通过大量信号进行分类

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摘要

Cellular responses to environmental or physiological cues rely on transduction pathways that must ensure discrimination between different signals. These cascades 'crosstalk' and lead to a combinatorial regulation. This often results in different combinations of post-translational modifications (PTMs) on target proteins, which might act as a molecular barcode. Although appealing, the idea of the existence of such a code for transcription factors is debated. Using general arguments and recent evidence, we propose that a PTM code is not only possible but necessary in the context of transcription factors regulating multiple processes. Thus, the coding potential of PTM combinations should both provide a further layer of information integration from several transduction pathways and warrant highly specific cellular outputs.
机译:细胞对环境或生理线索的反应依赖于必须确保区分不同信号的转导途径。这些串扰“串扰”并导致组合调节。这通常会导致目标蛋白质上翻译后修饰(PTM)的不同组合,这可能会充当分子条形码。尽管很吸引人,但人们仍在争论这种转录因子编码的存在。使用一般的论据和最新的证据,我们建议在调节多个过程的转录因子的背景下,PTM代码不仅可能而且必要。因此,PTM组合的编码潜能既应提供来自几种转导途径的另一层信息整合,又应保证高度特异性的细胞输出。

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