Abstract : In the context of proteome analysis, matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) can fulfil the two tasks of primary structure verification and protein identification. As an illustration of the first of these tasks, the sequence of Eschericha coli isoleucyl-tRNA synthetase, a protein with 15 reported sequence conflicts, has been established by means of MALDI mass mapping. The identification of mitochondrial proteins participating in a yeast supramolecular complex exhibiting NADH dehydrogenase activity highlights the performances of MALDI-MS for the second task. The spectral suppression phenomenon occurring for complex peptide mixtures analysed by MALDI is discussed, as well as the role of post-source decay analysis for confident protein identification.
https://hal-polytechnique.archives-ouvertes.fr/hal-00771534
Contributor : Denis Roura
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Submitted on : Tuesday, January 8, 2013 - 7:18:48 PM
Last modification on : Friday, June 28, 2019 - 9:38:04 AM
M. Belghazi, K. Bathany, Codjo Hountondji, X. Grandier-Vazeille, S. Manon, et al.. Analysis of protein sequences and protein complexes by matrix-assisted laser desorption/ionization mass spectrometry.. Proteomics, Wiley-VCH Verlag, 2001, 1 (8), pp.946-54. ⟨10.1002/1615-9861(200108)1:8<946::AID-PROT946>3.0.CO;2-P⟩. ⟨hal-00771534⟩
