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Title: Advances in quadrupole and time-of-flight mass spectrometry for peptide MRM based translational research analysis
Authors: Mbasu, Richard J.
Heaney, Liam M.
Molloy, Billy J.
Hughes, Chris J.
Ng, Leong L.
Vissers, Johannes P. C.
Langridge, James I.
Jones, Donald J. L.
First Published: 23-May-2016
Publisher: Wiley-VCH Verlag
Citation: Proteomics, 2016, 16 (15-16), pp. 2206-2220
Abstract: The application of unit resolution tandem quadrupole and high-resolution orthogonal acceleration ToF mass spectrometers for the quantitation and translational analysis of proteolytic peptides is described. The MS platforms were contrasted in terms of sensitivity and linear response. Moreover, the selectivity of the platforms was investigated and the effect on quantitative precision studied. Chromatographic LC conditions, including gradient length and configuration, were investigated with respect to speed/throughput, while minimizing isobaric interferences, thereby providing information with regard to practical sample cohort size limitations of LC-MS for large cohort experiments. In addition to these fundamental analytical performance metrics, precision and linear dynamic ranges were also studied. An LC-MS configuration that encompasses the best combination of throughput and analytical accuracy for translational studies was chosen, despite the MS platforms giving similar quantitative performance, and instances were identified where alternative combinations were found to be beneficial. This configuration was utilized to demonstrate that proteolytically digested nondepleted samples from heart failure patients could be classified with good discriminative power using a subset of proteins previously suggested as candidate biomarkers for cardiovascular diseases.
DOI Link: 10.1002/pmic.201500500
ISSN: 1615-9853
eISSN: 1615-9861
Embargo on file until: 1-Jan-10000
Version: Publisher Version
Status: Peer-reviewed
Type: Journal Article
Rights: Copyright © 2016. Wiley-VCH Verlag. Deposited with reference to the publisher’s archiving policy available on the SHERPA/RoMEO website.
Description: The file associated with this record is under a permanent embargo in accordance with the publisher's policy.
Appears in Collections:Published Articles, Dept. of Cancer Studies and Molecular Medicine

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