Fiche publication
Date publication
novembre 2021
Journal
Journal of proteomics
Auteurs
Membres identifiés du Cancéropôle Est :
Mme SCHAEFFER-REISS Christine
Tous les auteurs :
Colomé N, Abian J, Aloria K, Arizmendi JM, Barceló-Batllori S, Braga-Lagache S, Burlet-Schiltz O, Carrascal M, Casal JI, Chicano-Gálvez E, Chiva C, Clemente LF, Elortza F, Estanyol JM, Fernandez-Irigoyen J, Fernández-Puente P, Fidalgo MJ, Froment C, Fuentes M, Fuentes-Almagro C, Gay M, Hainard A, Heller M, Hernández ML, Ibarrola N, Iloro I, Kieselbach T, Lario A, Locard-Paulet M, Marina-Ramírez A, Martín L, Morato-López E, Muñoz J, Navajas R, Odena MA, Odriozola L, de Oliveira E, Paradela A, Mosimann CP, de Los Rios V, Ruiz-Romero C, Sabidó E, Del Pino MS, Sancho J, Santamaría E, Schaeffer-Reiss C, Schneider J, de la Torre C, Valero ML, Vilaseca M, Wu S, Wu L, de Embún PX, Canals F, Corrales F, ,
Lien Pubmed
Résumé
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.
Référence
J Proteomics. 2021 Nov 7;:104409
