Novel strategies to address the challenges in top-down proteomics

JA Melby, DS Roberts, EJ Larson… - Journal of the …, 2021 - ACS Publications
Top-down mass spectrometry (MS)-based proteomics is a powerful technology for
comprehensively characterizing proteoforms to decipher post-translational modifications …

Identification and quantification of proteoforms by mass spectrometry

LV Schaffer, RJ Millikin, RM Miller, LC Anderson… - …, 2019 - Wiley Online Library
A proteoform is a defined form of a protein derived from a given gene with a specific amino
acid sequence and localized post‐translational modifications. In top‐down proteomic …

[HTML][HTML] Identification of splice variants and isoforms in transcriptomics and proteomics

T Su, MAR Hollas, RT Fellers… - Annual review of …, 2023 - annualreviews.org
Alternative splicing is pivotal to the regulation of gene expression and protein diversity in
eukaryotic cells. The detection of alternative splicing events requires specific omics …

High-throughput quantitative top-down proteomics

KA Cupp-Sutton, S Wu - Molecular omics, 2020 - pubs.rsc.org
Top-down mass spectrometry (MS) analyzes intact proteins at the proteoform level, which
allows researchers to better understand the functions of protein modifications. Recently, top …

Ion activation methods for peptides and proteins

LA Macias, IC Santos, JS Brodbelt - Analytical chemistry, 2019 - ACS Publications
Mass spectrometry is well-established as one of the primary methods used to characterize
peptides and proteins. New advances in instrumentation and innovative analytical workflows …

Native top‐down mass spectrometry for higher‐order structural characterization of proteins and complexes

R Liu, S Xia, H Li - Mass spectrometry reviews, 2023 - Wiley Online Library
Progress in structural biology research has led to a high demand for powerful and yet
complementary analytical tools for structural characterization of proteins and protein …

[HTML][HTML] Structure and dynamics of endogenous cardiac troponin complex in human heart tissue captured by native nanoproteomics

EA Chapman, DS Roberts, TN Tiambeng… - Nature …, 2023 - nature.com
Protein complexes are highly dynamic entities that display substantial diversity in their
assembly, post-translational modifications, and non-covalent interactions, allowing them to …

Seeing the complete picture: proteins in top-down mass spectrometry

T Habeck, F Lermyte - Essays in Biochemistry, 2023 - portlandpress.com
Top-down protein mass spectrometry can provide unique insights into protein sequence and
structure, including precise proteoform identification and study of protein–ligand and protein …

Structural O-glycoform heterogeneity of the SARS-CoV-2 spike protein receptor-binding domain revealed by top-down mass spectrometry

DS Roberts, M Mann, JA Melby, EJ Larson… - Journal of the …, 2021 - ACS Publications
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) utilizes an extensively
glycosylated surface spike (S) protein to mediate host cell entry, and the S protein …

Capillary Zone Electrophoresis-Tandem Mass Spectrometry for Top-Down Proteomics of Mouse Brain Integral Membrane Proteins

Q Wang, T Xu, F Fang, Q Wang, P Lundquist… - Analytical …, 2023 - ACS Publications
Mass spectrometry (MS)-based top-down characterization of integral membrane proteins
(IMPs) is crucial for understanding their functions in biological processes. However, it is …