DIA label-free proteomic analysis of murine bone-marrow-derived macrophages
Christa P. Baker, Iain R. Phair, Alejandro J. Brenes, Abdelmadjid Atrih, Dylan G. Ryan, Roland Bruderer, Albena T. Dinkova‐Kostova, Douglas J. Lamont, J. Simon C. Arthur, Andrew J.M. Howden
Abstract
Here, we describe an optimized protocol to analyze murine bone-marrow-derived macrophages using label-free data-independent acquisition (DIA) proteomics. We provide a complete step-by-step protocol describing sample preparation utilizing the S-Trap approach for on-column digestion and peptide purification. We then detail mass spectrometry data acquisition and approaches for data analysis. Single-shot DIA protocols achieve comparable proteomic depth with data-dependent MS approaches without the need for fractionation. This allows for better scaling for large sample numbers with high inter-experimental reproducibility. For complete details on the use and execution of this protocol, please refer to Ryan et al. (2022).