A comprehensive spectral assay library to quantify the Escherichia coli proteome by DIA/SWATH-MS.

A comprehensive spectral assay library to quantify the Escherichia coli proteome by DIA/SWATH-MS.
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DOI:
10.1038/s41597-020-00724-7
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发表时间:
2020-11-12
期刊:
影响因子:
9.8
通讯作者:
Moritz RL
Moritz RL
中科院分区:
综合性期刊2区
文献类型:
--
作者:
Midha MK;Kusebauch U;Shteynberg D;Kapil C;Bader SL;Reddy PJ;Campbell DS;Baliga NS;Moritz RL

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Data-Independent Acquisition (DIA) is a method to improve consistent identification and precise quantitation of peptides and proteins by mass spectrometry (MS). The targeted data analysis strategy in DIA relies on spectral assay libraries that are generally derived from a priori measurements of peptides for each species. Although Escherichia coli (E. coli) is among the best studied model organisms, so far there is no spectral assay library for the bacterium publicly available. Here, we generated a spectral assay library for 4,014 of the 4,389 annotated E. coli proteins using one- and two-dimensional fractionated samples, and ion mobility separation enabling deep proteome coverage. We demonstrate the utility of this high-quality library with robustness in quantitation of the E. coli proteome and with rapid-chromatography to enhance throughput by targeted DIA-MS. The spectral assay library supports the detection and quantification of 91.5% of all E. coli proteins at high-confidence with 56,182 proteotypic peptides, making it a valuable resource for the scientific community. Data and spectral libraries are available via ProteomeXchange (PXD020761, PXD020785) and SWATHAtlas (SAL00222-28). Machine-accessible metadata file describing the reported data: 10.6084/m9.figshare.13078733
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期刊: PROTEOMICS
影响因子: 3.4
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期刊: SCIENTIFIC DATA
影响因子: 9.8
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DOI: 10.1016/j.cell.2016.06.041
发表时间: 2016-07-28
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影响因子: 64.5
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