MS-GF+ makes progress towards a universal database search tool for proteomics.
MS-GF+ makes progress towards a universal database search tool for proteomics.
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DOI:
10.1038/ncomms6277
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发表时间:
2014-10-31
影响因子:
16.6
通讯作者:
Pevzner, Pavel A.
中科院分区:
文献类型:
--
作者:
Kim, Sangtae;Pevzner, Pavel A.
Mass spectrometry (MS) instruments and experimental protocols are rapidly advancing, but the software tools to analyze tandem mass spectra are lagging behind. We present a database search tool MS-GF+ that is sensitive (it identifies more peptides than most other database search tools) and universal (it works well for diverse types of spectra, different configurations of MS instruments and different experimental protocols). We benchmark MS-GF+ using diverse spectral datasets: (i) spectra of varying fragmentation methods; (ii) spectra of multiple enzyme digests; (iii) spectra of phosphorylated peptides; (iv) spectra of peptides with unusual fragmentation propensities produced by a novel alpha-lytic protease. For all these datasets, MS-GF+ significantly increases the number of identified peptides compared to commonly used methods for peptide identifications. We emphasize that while MS-GF+ is not specifically designed for any particular experimental set-up, it improves upon the performance of tools specifically designed for these applications (e.g., specialized tools for phosphoproteomics).
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