Mass spectrometry-intensive top-down proteomics: an update on technology advancements and biomedical applications

T Xu, Q Wang, Q Wang, L Sun - Analytical Methods, 2024 - pubs.rsc.org
Proteoforms are all forms of protein molecules from the same gene because of variations at
the DNA, RNA, and protein levels, eg, alternative splicing and post-translational …

Top-down proteomics

DS Roberts, JA Loo, YO Tsybin, X Liu, S Wu… - Nature Reviews …, 2024 - nature.com
Proteoforms, which arise from post-translational modifications, genetic polymorphisms and
RNA splice variants, play a pivotal role as drivers in biology. Understanding proteoforms is …

Pilot Evaluation of the Long-Term Reproducibility of Capillary Zone Electrophoresis–Tandem Mass Spectrometry for Top-Down Proteomics of a Complex Proteome …

SA Sadeghi, W Chen, Q Wang, Q Wang… - Journal of Proteome …, 2024 - ACS Publications
Mass spectrometry (MS)-based top-down proteomics (TDP) has revolutionized biological
research by measuring intact proteoforms in cells, tissues, and biofluids. Capillary zone …

Very Low-Pressure CID Experiments: High Energy Transfer and Fragmentation Pattern at the Single Collision Regime

D Szabó, Á Gömöry, K Ludányi, K Vékey, L Drahos - Molecules, 2023 - mdpi.com
We have performed CID experiments on a triple quadrupole instrument, lowering the
collision gas pressure by 50 times compared to its conventional value. The results show that …

Multidimensional separations in top–down proteomics

Y Guo, KA Cupp‐Sutton, Z Zhao… - Analytical Science …, 2023 - Wiley Online Library
Top–down proteomics (TDP) identifies, quantifies, and characterises proteins at the intact
proteoform level in complex biological samples to understand proteoform function and …

Quantitative Top-down Proteomics Revealed Kinase Inhibitor-Induced Proteoform-Level Changes in Cancer Cells

T Chowdhury, KA Cupp-Sutton, Y Guo… - Journal of proteome …, 2024 - ACS Publications
Quantitative analysis of proteins and their post-translational modifications (PTMs) in complex
biological samples is critical to understanding cellular biology as well as disease detection …

Characterizing age-related changes in intact mitochondrial proteoforms in murine hearts using quantitative top-down proteomics

A Ramirez-Sagredo, AT Sunny, KA Cupp-Sutton… - Clinical Proteomics, 2024 - Springer
Abstract Background Cardiovascular diseases (CVDs) are the leading cause of death
worldwide, and the prevalence of CVDs increases markedly with age. Due to the high …

Cysteine-Directed Isobaric Labeling Combined with GeLC-FAIMS-MS for Quantitative Top-Down Proteomics

T Matzanke, PT Kaulich, K Jeong… - Journal of Proteome …, 2025 - ACS Publications
The quantification of proteoforms, ie, all molecular forms in which proteins can be present,
by top-down proteomics provides essential insights into biological processes at the …

Toward the analysis of functional proteoforms using mass spectrometry-based stability proteomics

J Kang, M Seshadri, KA Cupp-Sutton… - Frontiers in Analytical …, 2023 - frontiersin.org
Functional proteomics aims to elucidate biological functions, mechanisms, and pathways of
proteins and proteoforms at the molecular level to examine complex cellular systems and …

Second Special Issue on Methods for Omics Research: Proteome Research and Beyond

L Florens, MQ Dong, J LaBaer - Journal of Proteome Research, 2023 - ACS Publications
This Second Special Issue compiles 19 studies answering our open call to describe novel,
or at least significantly updated, Methods for Omics Research. The common thread among …