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Over‐reporting of unreliable protein identifications has reduced the accuracy and reproducibility of MS/MS‐based proteomic studies. In this work, we demonstrate the analysis workflow used by a bioinformatic tool called Scaffold, which attempts to increase the confidence in protein identification reports through the use of several statistical methods. In addition, this work describes an advanced protein...
MS‐based proteomics produces large amounts of mass spectra that require processing, identification and possibly quantification before interpretation can be undertaken. High‐throughput studies require automation of these various steps, and management of the data in association with the results obtained. We here present ms_lims (http://genesis.UGent.be/ms_lims), a freely available, open‐source system...
The probability‐based search engine MASCOT has been widely used to identify peptides and proteins in shotgun proteomic research. Most subsequent quality control methods filter out ambiguous assignments according to the ion score and thresholds provided by MASCOT. On the basis of target‐decoy database search strategy, we evaluated the performance of several filter methods on MASCOT search results and...
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