Article Synopsis

  • MaxDIA is a software platform designed for analyzing data-independent acquisition (DIA) proteomics data within the MaxQuant environment, achieving enhanced proteome coverage and improved protein quantification accuracy.
  • It utilizes spectral libraries and machine learning to provide accurate false discovery rate (FDR) estimates and enables hypothesis-free analysis of DIA samples, ensuring reliable results even without a library.
  • MaxDIA's advanced features include three- or four-dimensional fragment data detection and a unique bootstrap workflow for enhanced data accuracy, especially when combined with new technologies like BoxCar acquisition and trapped ion mobility spectrometry.

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Article Abstract

MaxDIA is a software platform for analyzing data-independent acquisition (DIA) proteomics data within the MaxQuant software environment. Using spectral libraries, MaxDIA achieves deep proteome coverage with substantially better coefficients of variation in protein quantification than other software. MaxDIA is equipped with accurate false discovery rate (FDR) estimates on both library-to-DIA match and protein levels, including when using whole-proteome predicted spectral libraries. This is the foundation of discovery DIA-hypothesis-free analysis of DIA samples without library and with reliable FDR control. MaxDIA performs three- or four-dimensional feature detection of fragment data, and scoring of matches is augmented by machine learning on the features of an identification. MaxDIA's bootstrap DIA workflow performs multiple rounds of matching with increasing quality of recalibration and stringency of matching to the library. Combining MaxDIA with two new technologies-BoxCar acquisition and trapped ion mobility spectrometry-both lead to deep and accurate proteome quantification.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8668435PMC
http://dx.doi.org/10.1038/s41587-021-00968-7DOI Listing

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