ArticleAnalytical chemistry2017
Single-Shot Top-Down Proteomics with Capillary Zone Electrophoresis-Electrospray Ionization-Tandem Mass Spectrometry for Identification of Nearly 600 Escherichia coli Proteoforms.
Article in Analytical chemistry, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers.
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Who cites it
54 citing papers in PubMed.
- Advancing the Reproducibility and Repeatability of Capillary Zone Electrophoresis-Mass Spectrometry-Based Top-Down Proteomics by an Improved Capillary Coating Procedure.Journal of proteome research · 2026Article
- Top-Down Mass Spectrometry and Its Current Applications in Biomarker Discovery in Aging and Age-Related Diseases.International journal of molecular sciences · 2026Review
- Article
- Mass spectrometry-based top-down proteomics for proteoform profiling of protein coronas.Nature protocols · 2026Review
- Extensive Backbone Cleavage Coverage of Intact Proteoforms in a Mass Range of 10-70 kDa by Integrating Electron, Collision, and Photon-Based Fragmentation Techniques during an Electrophoretic Time Scale.Journal of the American Society for Mass Spectrometry · 2026Article
- Decades of dreams coming true: capillary zone electrophoresis-mass spectrometry for reproducible multi-level proteomics.bioRxiv : the preprint server for biology · 2026Article
- Intact Proteoform Analysis by Capillary Electrophoresis-Mass Spectrometry. Are We There Yet?Angewandte Chemie (International ed. in English) · 2026Article
- Quantitative Top-Down Proteomics Reveals Significant Differences in Histone Proteoforms Between Metastatic and Nonmetastatic Colorectal Cancer Cells.Proteomics · 2025Article
- Article
- TopLib: Building and Searching Top-Down Mass Spectral Libraries for Proteoform Identification.Analytical chemistry · 2025Article
- Capillary Electrophoresis-Mass Spectrometry for Top-Down Proteomics.Annual review of analytical chemistry (Palo Alto, Calif.) · 2025Review
- A simple and efficient approach for preparing cationic coating with tunable electroosmotic flow for capillary zone electrophoresis-mass spectrometry-based top-down proteomics.Analytica chimica acta · 2024Article
- Mass Spectrometry-Based Top-Down Proteomics in Nanomedicine: Proteoform-Specific Measurement of Protein Corona.ACS nano · 2024Article
- Article
- Top-Down Proteomics Analysis of Picogram-Level Complex Samples Using Spray-Capillary-Based Capillary Electrophoresis-Mass Spectrometry.Analytical chemistry · 2024Article
- Pilot Evaluation of the Long-Term Reproducibility of Capillary Zone Electrophoresis-Tandem Mass Spectrometry for Top-Down Proteomics of a Complex Proteome Sample.Journal of proteome research · 2024Article
- Article
- An automated spray-capillary platform for the microsampling and CE-MS analysis of picoliter- and nanoliter-volume samples.Analytical and bioanalytical chemistry · 2023Article
- Coupling High-Field Asymmetric Waveform Ion Mobility Spectrometry with Capillary Zone Electrophoresis-Tandem Mass Spectrometry for Top-Down Proteomics.Analytical chemistry · 2023Article
- Recent advances (2019-2021) of capillary electrophoresis-mass spectrometry for multilevel proteomics.Mass spectrometry reviews · 2023Review
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
Capillary zone electrophoresis-electrospray ionization-tandem mass spectrometry (CZE-ESI-MS/MS) has been recognized as an invaluable platform for top-down proteomics. However, the scale of top-down proteomics using CZE-MS/MS is still limited due to the low loading capacity and narrow separation window of CZE. In this work, for the first time we systematically evaluated the dynamic pH junction method for focusing of intact proteins during CZE-MS. The optimized dynamic pH junction-based CZE-MS/MS approached a 1 μL loading capacity, 90 min separation window, and high peak capacity (∼280) for characterization of an Escherichia coli proteome. The results represent the largest loading capacity and the highest peak capacity of CZE for top-down characterization of complex proteomes. Single-shot CZE-MS/MS identified about 2800 proteoform-spectrum matches, nearly 600 proteoforms, and 200 proteins from the Escherichia coli proteome with spectrum-level false discovery rate (FDR) less than 1%. The number of identified proteoforms in this work is over three times higher than that in previous single-shot CZE-MS/MS studies. Truncations, N-terminal methionine excision, signal peptide removal, and some post-translational modifications including oxidation and acetylation were detected.
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