ArticleRapid communications in mass spectrometry : RCM2021
Tandem-trapped ion mobility spectrometry/mass spectrometry coupled with ultraviolet photodissociation.
Article in Rapid communications in mass spectrometry : RCM, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 37 citations in OpenAlex.
- Chromatography-Free Analysis of Mixtures Using a Two-Dimensional Mass Spectrometry (2DMS)-Enabled Quadrupole Time-of-Flight (QToF) Analyzer.Analytical chemistry · 2026Article
- Native-Like Protein Structures in Vacuo: Steric Cooperativity as a Kinetic Barrier to Denaturation.JACS Au · 2026Article
- Time-Resolved Study of In Situ Generated Protein Subcomplexes by Tandem-Trapped Ion Mobility Spectrometry.Journal of mass spectrometry : JMS · 2026Article
- Analytical applications of gas-phase ion chemistry enabled by mass spectrometry.Analytical methods : advancing methods and applications · 2026Review
- Stabilizing Proteins by Chemical Cross-Linking: Insights into Conformation, Unfolding, and Aggregation Using Native Ion Mobility Mass Spectrometry.Analytical chemistry · 2025Article
- Development and Modification of Ion Mobility Mass Spectrometry Instrumentation for Enhanced Analysis of Biological Molecules.Journal of the American Society for Mass Spectrometry · 2025Review
- X-ray spectroscopy meets native mass spectrometry: probing gas-phase protein complexes.Physical chemistry chemical physics : PCCP · 2025Review
- Adapting a Trapped Ion Mobility Spectrometry-Q-TOF for HighAnalytical chemistry · 2025Article
- Improved Annotation of Internal Fragments via Trapped-Ion Mobility Enhanced Top-Down Sequencing of Protein Ions.Journal of mass spectrometry : JMS · 2025Article
- Evaluation of a Commercial TIMS-Q-TOF Platform for Native Mass Spectrometry.Journal of the American Society for Mass Spectrometry · 2024Article
- Instrumentation at the Leading Edge of Proteomics.Analytical chemistry · 2024Review
- Advancing PROTAC Characterization: Structural Insights through Adducts and Multimodal Tandem-MS Strategies.Journal of the American Society for Mass Spectrometry · 2024Article
- Elucidating Structures of Protein Complexes by Collision-Induced Dissociation at Elevated Gas Pressures.Journal of the American Society for Mass Spectrometry · 2023Article
- Top-Down Protein Analysis by Tandem-Trapped Ion Mobility Spectrometry/Mass Spectrometry (Tandem-TIMS/MS) Coupled with Ultraviolet Photodissociation (UVPD) and Parallel Accumulation/Serial Fragmentation (PASEF) MS/MS Analysis.Journal of the American Society for Mass Spectrometry · 2023Article
- Enhancing the Depth of Analyses with Next-Generation Ion Mobility Experiments.Annual review of analytical chemistry (Palo Alto, Calif.) · 2023Review
- Characterizing the top-down sequencing of protein ions prior to mobility separation in a timsTOF.The Analyst · 2023Article
- Developments in Trapped Ion Mobility Mass Spectrometry to Probe the Early Stages of Peptide Aggregation.Journal of the American Society for Mass Spectrometry · 2023Article
- Differentiation of Isomeric, Nonseparable Carbohydrates Using Tandem-Trapped Ion Mobility Spectrometry-Mass Spectrometry.Analytical chemistry · 2023Article
- Perspective on the potential of tandem-ion mobility /mass spectrometry methods for structural proteomics applications.Frontiers in analytical science · 2023Article
- Top-"Double-Down" Mass Spectrometry of Histone H4 Proteoforms: Tandem Ultraviolet-Photon and Mobility/Mass-Selected Electron Capture Dissociations.Analytical chemistry · 2022Article
Corrections and comments
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Authors and funding
9 authors at 3 institutions in 2 countries.
Funding
Abstract
rationaleTandem-ion mobility spectrometry/mass spectrometry methods have recently gained traction for the structural characterization of proteins and protein complexes. However, ion activation techniques currently coupled with tandem-ion mobility spectrometry/mass spectrometry methods are limited in their ability to characterize structures of proteins and protein complexes.
methodsHere, we describe the coupling of the separation capabilities of tandem-trapped ion mobility spectrometry/mass spectrometry (tTIMS/MS) with the dissociation capabilities of ultraviolet photodissociation (UVPD) for protein structure analysis.
resultsWe establish the feasibility of dissociating intact proteins by UV irradiation at 213 nm between the two TIMS devices in tTIMS/MS and at pressure conditions compatible with ion mobility spectrometry (2-3 mbar). We validate that the fragments produced by UVPD under these conditions result from a radical-based mechanism in accordance with prior literature on UVPD. The data suggest stabilization of fragment ions produced from UVPD by collisional cooling due to the elevated pressures used here ("UVnoD2"), which otherwise do not survive to detection. The data account for a sequence coverage for the protein ubiquitin comparable to recent reports, demonstrating the analytical utility of our instrument in mobility-separating fragment ions produced from UVPD.
conclusionsThe data demonstrate that UVPD carried out at elevated pressures of 2-3 mbar yields extensive fragment ions rich in information about the protein and that their exhaustive analysis requires IMS separation post-UVPD. Therefore, because UVPD and tTIMS/MS each have been shown to be valuable techniques on their own merit in proteomics, our contribution here underscores the potential of combining tTIMS/MS with UVPD for structural proteomics.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.