Cited by 832Advanced Proteomics Techniques and ApplicationsMass Spectrometry Techniques and ApplicationsMetabolomics and Mass Spectrometry Studies

Mass spectrometry-based proteomics using Q Exactive, a high-performance benchtop quadrupole Orbitrap mass spectrometer

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Michalski, Annette, Damoc, Eugen, Hauschild, Jan-Peter, Lange, Oliver, Wieghaus, Andreas, Makarov, Alexander, Nagaraj, Nagarjuna, Cox, Juergen +2 more·2011·Molecular & Cellular Proteomics

Abstract

Mass spectrometry-based proteomics has greatly benefitted from enormous advances in high resolution instrumentation in recent years. In particular, the combination of a linear ion trap with the Orbitrap analyzer has proven to be a popular instrument configuration. Complementing this hybrid trap-trap instrument, as well as the standalone Orbitrap analyzer termed Exactive, we here present coupling of a quadrupole mass filter to an Orbitrap analyzer. This "Q Exactive" instrument features high ion currents because of an S-lens, and fast high-energy collision-induced dissociation peptide fragmentation because of parallel filling and detection modes. The image current from the detector is processed by an "enhanced Fourier Transformation" algorithm, doubling mass spectrometric resolution. Together with almost instantaneous isolation and fragmentation, the instrument achieves overall cycle times of 1 s for a top 10 higher energy collisional dissociation method. More than 2500 proteins can be identified in standard 90-min gradients of tryptic digests of mammalian cell lysate- a significant improvement over previous Orbitrap mass spectrometers. Furthermore, the quadrupole Orbitrap analyzer combination enables multiplexed operation at the MS and tandem MS levels. This is demonstrated in a multiplexed single ion monitoring mode, in which the quadrupole rapidly switches among different narrow mass ranges that are analyzed in a single composite MS spectrum. Similarly, the quadrupole allows fragmentation of different precursor masses in rapid succession, followed by joint analysis of the higher energy collisional dissociation fragment ions in the Orbitrap analyzer. High performance in a robust benchtop format together with the ability to perform complex multiplexed scan modes make the Q Exactive an exciting new instrument for the proteomics and general analytical communities.

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  1. [24]Lange O. Makarov A. Denisov E. Balschun W. (2010) Accelerating spectral acquisition rate of Orbitrap mass spectrometry. Proc. 58th Conf. Amer. Soc. Mass Spectrom

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Authors
Michalski, A., Damoc, E., Hauschild, J.-P., Lange, O., Wieghaus, A., Makarov, A., Nagaraj, N., Cox, J., Mann, M., & Horning, S.
Affiliations
  • Max Planck Institute of Biochemistry (DE)
  • Thermo Fisher Scientific (Germany) (DE)
  • Max Planck Society (DE)
Corresponding author
  • Mann, Matthias
  • Horning, Stevan
Venue
Molecular & Cellular Proteomics
Publisher
Elsevier BV
Published
2011-09
Volume
10
Issue
9
Pages
M111.011015
ISSN
1535-9476 (ISSN-L)
OpenAlex
W2124081847
Cited by
832
References
32
Citations by year
2026: 24 · 2025: 26 · 2024: 26 · 2023: 23 · 2022: 38 · 2021: 42 · 2020: 63 · 2019: 63 · 2018: 66 · 2017: 73 · 2016: 71 · 2015: 84 · 2014: 87 · 2013: 82 · 2012: 54
FWCI
33.34
Type
journal article
Language
en
Open access
Locations
  • Molecular & Cellular Proteomics (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion, other-oa)
  • Max Planck Institute for Plasma Physics (submittedVersion)
Funders
European Commission
Topics
  • Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
  • Physical Sciences › Chemistry › Spectroscopy › Mass Spectrometry Techniques and Applications
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Metabolomics and Mass Spectrometry Studies
Keywords
high-energy collision-induced dissociation, tandem mass spectrometry, protein identification, tryptic digest, high-resolution mass spectrometry
MeSH terms
Algorithms, Amino Acid Sequence, Female, HeLa Cells, Humans, Ions, Molecular Sequence Data, Peptide Fragments, Proteins, Mass Spectrometry, Proteomics

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