Multi-laboratory experiment PME11 for the standardization of phosphoproteome analysis

Other authors

Institut Català de la Salut

[Colomé N, Martín L, Canals F] ProteoRed-ISCIII, Vall d'Hebron Institute of Oncology (VHIO), Barcelona, Spain. [Abian J] ProteoRed-ISCIII, Instituto de Investigaciones Biomédicas de Barcelona, IIBB-CSIC/IDIBAPS, Barcelona, Spain. [Aloria K] ProteoRed-ISCIII, Proteomics Core Facility-SGIKER, University of the Basque Country (UPV/EHU), Leioa, Spain. [Arizmendi JM] Department of Biochemistry and Molecular Biology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Leioa, Spain. [Barceló-Batllori S] ProteoRed-ISCIII, Bellvitge Biomedical Research Institute (IDIBELL), Barcelona, Spain. [Braga-Lagache S] Department for BioMedical Research (DBMR), Proteomics and Mass Spectrometry Core Facility, University of Bern, Bern, Switzerland

Vall d'Hebron Barcelona Hospital Campus

Publication date

2023-06-07T10:07:33Z

2023-06-07T10:07:33Z

2022-01-16



Abstract

Phosphoproteome


Fosfoproteoma


Fosfoproteoma


Global analysis of protein phosphorylation by mass spectrometry proteomic techniques has emerged in the last decades as a powerful tool in biological and biomedical research. However, there are several factors that make the global study of the phosphoproteome more challenging than measuring non-modified proteins. The low stoichiometry of the phosphorylated species and the need to retrieve residue specific information require particular attention on sample preparation, data acquisition and processing to ensure reproducibility, qualitative and quantitative robustness and ample phosphoproteome coverage in phosphoproteomic workflows. Aiming to investigate the effect of different variables in the performance of proteome wide phosphoprotein analysis protocols, ProteoRed-ISCIII and EuPA launched the Proteomics Multicentric Experiment 11 (PME11). A reference sample consisting of a yeast protein extract spiked in with different amounts of a phosphomix standard (Sigma/Merck) was distributed to 31 laboratories around the globe. Thirty-six datasets from 23 laboratories were analyzed. Our results indicate the suitability of the PME11 reference sample to benchmark and optimize phosphoproteomics strategies, weighing the influence of different factors, as well as to rank intra and inter laboratory performance.


ProteoRed, PRB3 is supported by grant PT17/0019/0001, of the PE I+D+i 2013-2016, funded by ISCIII and ERDF.

Document Type

Article


Published version

Language

English

Publisher

Elsevier

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Journal of Proteomics;251

https://doi.org/10.1016/j.jprot.2021.104409

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Attribution 4.0 International

http://creativecommons.org/licenses/by/4.0/

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