期刊
PROTEOMICS
卷 16, 期 5, 页码 700-714出版社
WILEY
DOI: 10.1002/pmic.201500355
关键词
Immonium; Localization; PTM; Signature; SUMO; Technology; Ubiquitin
资金
- National Cancer Institute [CA184165]
- NCI's Clinical Proteomic Tumor Analysis Consortium initiative [U24CA160036]
Mass spectrometry (MS) is a powerful tool to analyze complex mixtures of proteins in a high-throughput fashion. Proteome analysis has already become a routine task in biomedical research with the emergence of proteomics core facilities in most research institutions. Post-translational modifications (PTMs) represent a mechanism by which complex biological processes are orchestrated dynamically at the systems level. MS is rapidly becoming popular to discover new modifications and novel sites of known PTMs, revolutionizing the current understanding of diverse signaling pathways and biological processes. However, MS-based analysis of PTMs has its own caveats and pitfalls that can lead to erroneous conclusions. Here, we review the most common errors in MS-based PTM analyses with the goal of adopting strategies that maximize correct interpretation in the context of biological questions that are being addressed. Finally, we provide suggestions that should help mass spectrometrists, bioinformaticians and biologists to perform and interpret MS-based PTM analyses more accurately.
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