Production of Over 27 000 Peptide and Nearly 4400 Protein Identifications by Single-Shot Capillary-Zone Electrophoresis–Mass Spectrometry via Combination of a Very-Low-Electroosmosis Coated Capillary, a Third-Generation Electrokinetically-Pumped Sheath-Flow Nanospray Interface, an Orbitrap Fusion Lumos Tribrid Mass Spectrometer, and an Advanced-Peak-Determination Algorithm
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We show that capillary-zone electrophoresis-electrospray ionization-tandem mass spectrometry (CZE-ESI-MS/MS) generates very large numbers of peptide and protein identifications (IDs) by combining four technologies: a separation capillary coated to generate very low electroosmosis, an electrokinetically pumped sheath-flow nanoelectrospray interface to produce high-sensitivity ionization, an Orbitrap Fusion Lumos Tribrid platform to provide high-speed analysis, and an advanced-peak-determination (APD) algorithm to take advantage of the mass spectrometer's data-acquisition speed. The use of the APD algorithm resulted in 2 times more identifications than the standard peak algorithm. We also investigated the effect of the isolation window, injection time, and loading amount. Optimization of these parameters produced over 27 000 peptide identifications and nearly 4400 protein-group identifications from 220 ng of K562-cell digest in a single 120 min run, which is 2.7 times more IDs produced by CZE-ESI-MS/MS than by the previous state-of-the-art technique.
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Self-citation
- Authors
- Zhang, Z., Hebert, A. S., Westphall, M. S., Qu, Y., Coon, J. J., & Dovichi, N. J.
- Affiliations
- University of Notre Dame (US)
- University of Wisconsin–Madison (US)
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Venue
- Analytical Chemistry
- Publisher
- American Chemical Society (ACS)
- Published
- 2018-09-04
- Volume
- 90
- Issue
- 20
- Pages
- 12090-12093
- ISSN
- 0003-2700 (ISSN-L)
- 1520-6882
- PMC
- PMC6508074
- OpenAlex
- W2892166667
- Cited by
- 30
- References
- 27
- Citations by year
- 2025: 1 · 2024: 3 · 2023: 2 · 2022: 4 · 2021: 5 · 2020: 6 · 2019: 7 · 2018: 2
- FWCI
- 2.16
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Analytical Chemistry (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institute of Child Health and Human Development (R01 HD084399)
- National Institute of General Medical Sciences (R35 GM118110, P41 GM108538, R01 GM096767)
- Topics
- Physical Sciences › Chemistry › Spectroscopy › Advanced Proteomics Techniques and Applications
- Physical Sciences › Chemistry › Spectroscopy › Mass Spectrometry Techniques and Applications
- Physical Sciences › Engineering › Biomedical Engineering › Microfluidic and Capillary Electrophoresis Applications
- Keywords
- capillary zone electrophoresis, peptide identification, protein identification, Orbitrap Fusion Lumos
- MeSH terms
- Algorithms, Humans, Peptides, Proteins, Electrophoresis, Capillary, K562 Cells, Tandem Mass Spectrometry
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