Castangia R, Hudson SR, Robinson HK, Flitsch SL, Thomas-Oates J, Routledge A. Fabrication and Application of Isotopically Labelled Gold Arrays for Multiplexed Peptide Analysis.
Chembiochem 2016;
17:2007-2011. [PMID:
27581724 DOI:
10.1002/cbic.201600347]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Indexed: 11/07/2022]
Abstract
A new array-based technology for the simultaneous capture, chemical labelling and mass spectrometry analysis of peptides is presented. Isotopically labelled self-assembled monolayer (SAM) gold arrays are constructed and used simultaneously to capture and label a range of peptides. The array-immobilised, labelled peptides were released by MALDI ablation, analysed by MALDI mass spectrometry and readily identified as labelled peptides from their characteristic isotope pattern. This new solid-phase array platform has the advantage of minimal sample manipulation and is suitable for multiple analyses of single protein digests on a single MALDI target plate.
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