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© Research
Publication : Nature methods

Best practices and benchmarks for intact protein analysis for top-down mass spectrometry

Team: Mass Spectrometry for Biology
Member: Julia Chamot-Rooke
Scientific Fields
Diseases
Organisms
Applications
Technique

Published in Nature methods - 27 Jun 2019

Donnelly DP, Rawlins CM, DeHart CJ, Fornelli L, Schachner LF, Lin Z, Lippens JL, Aluri KC, Sarin R, Chen B, Lantz C, Jung W, Johnson KR, Koller A, Wolff JJ, Campuzano IDG, Auclair JR, Ivanov AR, Whitelegge JP, Paša-Tolić L, Chamot-Rooke J, Danis PO, Smith LM, Tsybin YO, Loo JA, Ge Y, Kelleher NL, Agar JN

Link to Pubmed [PMID] – 31249407

Nat. Methods 2019 07;16(7):587-594

One gene can give rise to many functionally distinct proteoforms, each of which has a characteristic molecular mass. Top-down mass spectrometry enables the analysis of intact proteins and proteoforms. Here members of the Consortium for Top-Down Proteomics provide a decision tree that guides researchers to robust protocols for mass analysis of intact proteins (antibodies, membrane proteins and others) from mixtures of varying complexity. We also present cross-platform analytical benchmarks using a protein standard sample, to allow users to gauge their proficiency.