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Corrigendum: Global quantification of mammalian gene expression control

机译:更正:哺乳动物基因表达控制的全球量化

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Mark Biggin of the Lawrence Berkeley National Laboratory contacted us, noting that our mass-spectrometry-based protein copy number estimates are lower than several literature-based values. We therefore re-analysed the scripts used for data processing, and found a scaling error that occurred during the conversion of normalized protein intensity values into absolute copy number estimates. As described in the original Article, slope and offset for scaling were calculated by linear regression based on an in-solution digest with spiked-in proteins of known concentrations. We erroneously used the slope and the offset from an unrelated experiment to scale protein levels, resulting in a systematic underestimation of protein levels and derived translation rate constants. We apologize for this error and any confusion it may have caused.
机译:劳伦斯伯克利国家实验室的Mark Biggin与我们联系,并指出我们基于质谱的蛋白质拷贝数估计值低于几个基于文献的值。因此,我们重新分析了用于数据处理的脚本,并发现了在将标准化蛋白质强度值转换为绝对拷贝数估计值时发生的缩放错误。如原始文章中所述,缩放比例的斜率和偏移量是基于溶液中具有已知浓度的掺入蛋白质的消化物通过线性回归来计算的。我们错误地使用了不相关实验的斜率和偏移量来缩放蛋白质水平,导致系统地低估了蛋白质水平和派生的翻译速率常数。对于此错误以及可能引起的混乱,我们深表歉意。

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