Abstract
Shotgun proteomics has been used successfully for more than two decades for measurement of proteins from diverse biological systems. This has led to new insights and identification of potential biomarkers and drug targets for numerous medical conditions. The advent of mass-labeling approaches such as isobaric tagging for relative and absolute quantitation (iTRAQ) has allowed multiplexing of samples to improve the accuracy and throughput of experiments and the reduction of costs. Here, we describe a detailed iTRAQ mass spectrometry protocol for simultaneous analysis of four proteomes from postmortem brain tissue extracts. In addition, a post-labeling procedure for peptide fractionation is presented.
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Acknowledgments
National Council of Technological and Scientific Development (CNPq) (Grant number: 477325/2013-0) and Rio de Janeiro State Foundation for Research Support (FAPERJ) (Grant number: E-26/202.801/2015).
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Núñez, E.V., Guest, P.C., Martins-de-Souza, D., Domont, G.B., Nogueira, F.C.S. (2017). Application of iTRAQ Shotgun Proteomics for Measurement of Brain Proteins in Studies of Psychiatric Disorders. In: Guest, P. (eds) Proteomic Methods in Neuropsychiatric Research. Advances in Experimental Medicine and Biology(), vol 974. Springer, Cham. https://doi.org/10.1007/978-3-319-52479-5_18
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DOI: https://doi.org/10.1007/978-3-319-52479-5_18
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