ArticleAnalytical chemistry2018
Sequencing Grade Tandem Mass Spectrometry for Top-Down Proteomics Using Hybrid Electron Capture Dissociation Methods in a Benchtop Orbitrap Mass Spectrometer.
Article in Analytical chemistry, 2018. 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.
- Native Top-Down Mass Spectrometry Combined with High-Resolution Charge Variant Analysis of Trastuzumab Originator and Biosimilars.Journal of the American Society for Mass Spectrometry · 2026Article
- Parallel Sequencing of the Two Arms on a Bispecific Antibody by Electron Capture Dissociation on a timsOmni Platform Reveals Several By-products in the Controlled Fab-arm Exchange Process.Analytical chemistry · 2026Article
- Analytical applications of gas-phase ion chemistry enabled by mass spectrometry.Analytical methods : advancing methods and applications · 2026Review
- Electron Capture Dissociation for Discovery Top-Down Proteomics of Peptides and Small Proteins on Chromatographic Time Scales.Journal of the American Society for Mass Spectrometry · 2025Article
- Native Top-Down Analysis of Membrane Protein Complexes Directly From In Vitro and Native Membranes.Molecular & cellular proteomics : MCP · 2025Article
- Top-Down and Middle-Down Mass Spectrometry of Antibodies.Molecular & cellular proteomics : MCP · 2025Review
- The Road to the Full Sequencing of Natural Frogs' Peptides Relying Solely on Mass Spectrometry.Mass spectrometry (Tokyo, Japan) · 2025Review
- Comparative Analysis of Carbonic Anhydrase-II Expression Across Undescended Testes Sprague Dawley Model with Coenzyme Q10 Treatment.Acta informatica medica : AIM : journal of the Society for Medical Informatics of Bosnia & Herzegovina : casopis Drustva za medicinsku informatiku BiH · 2025Article
- Online, Bottom-up Characterization of Histone H4 4-17 Isomers.Analytical chemistry · 2024Article
- Top-Down Structural Characterization of Native Ubiquitin Combining Solution-Stable Isotope Labeling, Trapped Ion Mobility Spectrometry, and Tandem Electron Capture Dissociation Mass Spectrometry.Analytical chemistry · 2024Article
- To 200,000ACS central science · 2024Article
- Protein Complex Heterogeneity and Topology Revealed by Electron Capture Charge Reduction and Surface Induced Dissociation.ACS central science · 2024Article
- Comprehensive Overview of Bottom-Up Proteomics Using Mass Spectrometry.ACS measurement science au · 2024Review
- Protein complex heterogeneity and topology revealed by electron capture charge reduction and surface induced dissociation.bioRxiv : the preprint server for biology · 2024Article
- Instrumentation at the Leading Edge of Proteomics.Analytical chemistry · 2024Review
- Evaluation of Human Carbonic Anhydrase II (CA-II) Concentration Using ELISA: Insights into Optical Density's Role in Biomarker Quantification for Cryptorchidism Research.Acta informatica medica : AIM : journal of the Society for Medical Informatics of Bosnia & Herzegovina : casopis Drustva za medicinsku informatiku BiH · 2024Article
- Top/Middle-Down Characterization of α-Synuclein Glycoforms.Analytical chemistry · 2023Article
- Article
- Mass Spectrometry-Based Proteomics: Analyses Related to Drug-Resistance and Disease Biomarkers.Medicina (Kaunas, Lithuania) · 2023Review
- Characterization of an Omnitrap-Orbitrap Platform Equipped with Infrared Multiphoton Dissociation, Ultraviolet Photodissociation, and Electron Capture Dissociation for the Analysis of Peptides and Proteins.Analytical chemistry · 2023Article
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Authors and funding
7 authors.
Funding
Abstract
Compared to traditional collision induced dissociation methods, electron capture dissociation (ECD) provides more comprehensive characterization of large peptides and proteins as well as preserves labile post-translational modifications. However, ECD experiments are generally restricted to the high magnetic fields of FTICR-MS that enable the reaction of large polycations and electrons. Here, we demonstrate the use of an electromagnetostatic ECD cell to perform ECD and hybrid ECD methods utilizing 193 nm photons (ECuvPD) or collisional activation (EChcD) in a benchtop quadrupole-Orbitrap mass spectrometer. The electromagnetostatic ECD cell was designed to replace the transfer octapole between the quadrupole and C-trap. This implementation enabled facile installation of the ECD cell, and ions could be independently subjected to ECD, UVPD, HCD, or any combination. Initial benchmarking and characterization of fragmentation propensities for ECD, ECuvPD, and EChcD were performed using ubiquitin (8.6 kDa). ECD yielded extensive sequence coverage for low charge states of ubiquitin as well as for the larger protein carbonic anhydrase II (29 kDa), indicating pseudo-activated ion conditions. Additionally, relatively high numbers of d- and w-ions enable differentiation of isobaric isoleucine and leucine residues and suggest a distribution of electron energies yield hot-ECD type fragmentation. We report the most comprehensive characterization to date for model proteins up to 29 kDa and a monoclonal antibody at the subunit level. ECD, ECuvPD, and EChcD yielded 93, 95, and 91% sequence coverage, respectively, for carbonic anhydrase II (29 kDa), and targeted online analyses of monoclonal antibody subunits yielded 86% overall antibody sequence coverage.
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