Performance of five different electrospray ionisation sources in conjunction with rapid monolithic column liquid chromatography and fast MS/MS scanning

Karl E.V. Burgess, Alex Lainson, Lisa Imrie, Douglas Fraser-Pitt, Raja Yaga, David G.E. Smith, Remco Swart, Andrew R. Pitt, Neil F. Inglis

Research output: Contribution to journalArticle

Abstract

The performances of five different ESI sources coupled to a polystyrene-divinylbenzene monolithic column were compared in a series of LC-ESI-MS/MS analyses of Escherichia coli outer membrane proteins. The sources selected for comparison included two different modifications of the standard electrospray source, a commercial low-flow sprayer, a stainless steel nanospray needle and a coated glass Picotip. Respective performances were judged on sensitivity and the number and reproducibility of significant protein identifications obtained through the analysis of multiple identical samples. Data quality varied between that of a ground silica capillary, with 160 total protein identifications, the lowest number of high quality peptide hits obtained (3012), and generally peaks of lower intensity; and a stainless steel nanospray needle, which resulted in increased precursor ion abundance, the highest-quality peptide fragmentation spectra (5414) and greatest number of total protein identifications (259) exhibiting the highest MASCOT scores (average increase in score of 27.5% per identified protein). The data presented show that, despite increased variability in comparative ion intensity, the stainless steel nanospray needle provides the highest overall sensitivity. However, the resulting data were less reproducible in terms of proteins identified in complex mixtures -- arguably due to an increased number of high intensity precursor ion candidates.
LanguageEnglish
Pages1720-1726
Number of pages7
JournalProteomics
Volume9
Issue number6
DOIs
Publication statusPublished - Mar 2009

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Electrospray ionization
Column chromatography
Liquid chromatography
Ion sources
Liquid Chromatography
Stainless Steel
Scanning
Needles
divinyl benzene
Ions
Proteins
Peptides
Polystyrenes
Complex Mixtures
Silicon Dioxide
Escherichia coli
Glass
Membrane Proteins

Keywords

  • liquid chromatography
  • escherichia coli proteins
  • peptides
  • spectrometry
  • mass
  • electrospray ionization

Cite this

Burgess, K. E. V., Lainson, A., Imrie, L., Fraser-Pitt, D., Yaga, R., Smith, D. G. E., ... Inglis, N. F. (2009). Performance of five different electrospray ionisation sources in conjunction with rapid monolithic column liquid chromatography and fast MS/MS scanning. Proteomics, 9(6), 1720-1726. https://doi.org/10.1002/pmic.200800200
Burgess, Karl E.V. ; Lainson, Alex ; Imrie, Lisa ; Fraser-Pitt, Douglas ; Yaga, Raja ; Smith, David G.E. ; Swart, Remco ; Pitt, Andrew R. ; Inglis, Neil F. / Performance of five different electrospray ionisation sources in conjunction with rapid monolithic column liquid chromatography and fast MS/MS scanning. In: Proteomics. 2009 ; Vol. 9, No. 6. pp. 1720-1726.
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Performance of five different electrospray ionisation sources in conjunction with rapid monolithic column liquid chromatography and fast MS/MS scanning. / Burgess, Karl E.V.; Lainson, Alex; Imrie, Lisa; Fraser-Pitt, Douglas; Yaga, Raja; Smith, David G.E.; Swart, Remco; Pitt, Andrew R.; Inglis, Neil F.

In: Proteomics, Vol. 9, No. 6, 03.2009, p. 1720-1726.

Research output: Contribution to journalArticle

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