Instrumentation at the leading edge of proteomics
The proteome, or collection of proteoforms expressed in a biological system, is dynamic and
heterogeneous. As our appreciation for the complexity of the proteome has evolved, so have …
heterogeneous. As our appreciation for the complexity of the proteome has evolved, so have …
Enhancing the depth of analyses with next-generation ion mobility experiments
BP Zercher, TA Gozzo, AC Wageman… - Annual Review of …, 2023 - annualreviews.org
Recent developments in ion mobility (IM) technology have expanded the capability to
separate and characterize gas-phase ions of biomolecules, especially when paired with …
separate and characterize gas-phase ions of biomolecules, especially when paired with …
Top-down protein analysis by tandem-trapped ion mobility spectrometry/mass spectrometry (tandem-TIMS/MS) coupled with ultraviolet photodissociation (UVPD) and …
“Top-down” proteomics analyzes intact proteins and identifies proteoforms by their intact
mass as well as the observed fragmentation pattern in tandem mass spectrometry (MS/MS) …
mass as well as the observed fragmentation pattern in tandem mass spectrometry (MS/MS) …
Elucidating Structures of Protein Complexes by Collision-Induced Dissociation at Elevated Gas Pressures
Ion activation methods carried out at gas pressures compatible with ion mobility separations
are not yet widely established. This limits the analytical utility of emerging tandem-ion …
are not yet widely established. This limits the analytical utility of emerging tandem-ion …
Metastability of Protein Solution Structures in the Absence of a Solvent: Rugged Energy Landscape and Glass-like Behavior
Native ion mobility/mass spectrometry is well-poised to structurally screen proteomes but
characterizes protein structures in the absence of a solvent. This raises long-standing …
characterizes protein structures in the absence of a solvent. This raises long-standing …
False-positive glycopeptide identification via in-FAIMS fragmentation
High-field asymmetric waveform ion mobility spectrometry (FAIMS) separates glycopeptides
in the gas phase prior to mass spectrometry (MS) analysis, thus offering the potential to …
in the gas phase prior to mass spectrometry (MS) analysis, thus offering the potential to …
Top-down ion mobility separations of isomeric proteoforms
F Berthias, HA Thurman, G Wijegunawardena… - Analytical …, 2022 - ACS Publications
Continuing advances in proteomics highlight the ubiquity and biological importance of
proteoforms─ proteins with varied sequence, splicing, or distribution of post-translational …
proteoforms─ proteins with varied sequence, splicing, or distribution of post-translational …
Characterizing the top-down sequencing of protein ions prior to mobility separation in a timsTOF
KA Graham, CF Lawlor, NB Borotto - Analyst, 2023 - pubs.rsc.org
Mass spectrometry (MS)-based proteomics workflows of intact protein ions have increasingly
been utilized to study biological systems. These workflows, however, frequently result in …
been utilized to study biological systems. These workflows, however, frequently result in …
Peptide collision cross sections of 22 post-translational modifications
Recent advances have rekindled the interest in ion mobility as an additional dimension of
separation in mass spectrometry (MS)-based proteomics. Ion mobility separates ions …
separation in mass spectrometry (MS)-based proteomics. Ion mobility separates ions …
Top‐down ion mobility/mass spectrometry reveals enzyme specificity: Separation and sequencing of isomeric proteoforms
F Berthias, N Bilgin, J Mecinović, ON Jensen - Proteomics, 2024 - Wiley Online Library
Enzymatic catalysis is one of the fundamental processes that drives the dynamic landscape
of post‐translational modifications (PTMs), expanding the structural and functional diversity …
of post‐translational modifications (PTMs), expanding the structural and functional diversity …