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 …

Top-down proteomics and the challenges of true proteoform characterization

A Po, CE Eyers - Journal of proteome research, 2023‏ - ACS Publications
Top-down proteomics (TDP) aims to identify and profile intact protein forms (proteoforms)
extracted from biological samples. True proteoform characterization requires that both the …

Influence of different sample preparation approaches on proteoform identification by top-down proteomics

PT Kaulich, K Jeong, O Kohlbacher, A Tholey - Nature Methods, 2024‏ - nature.com
Top-down proteomics using mass spectrometry facilitates the identification of intact
proteoforms, that is, all molecular forms of proteins. Multiple past advances have lead to the …

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 …

PEPPI-MS: gel-based sample pre-fractionation for deep top-down and middle-down proteomics

A Takemori, PT Kaulich, A Tholey, N Takemori - Nature Protocols, 2025‏ - nature.com
Top-down analysis of intact proteins and middle-down analysis of proteins subjected to
limited digestion require efficient detection of traces of proteoforms in samples, necessitating …

Proteomics—the state of the field: the definition and analysis of proteomes should Be based in reality, not convenience

JR Coorssen, MP Padula - Proteomes, 2024‏ - mdpi.com
With growing recognition and acknowledgement of the genuine complexity of proteomes, we
are finally entering the post-proteogenomic era. Routine assessment of proteomes as …

[HTML][HTML] Present and future perspectives on mass spectrometry for clinical microbiology

MS Gant, J Chamot-Rooke - Microbes and Infection, 2024‏ - Elsevier
In the last decade, MALDI-TOF Mass Spectrometry (MALDI-TOF MS) has been introduced
and broadly accepted by clinical laboratory laboratories throughout the world as a powerful …

High-throughput deconvolution of native protein mass spectrometry imaging data sets for mass domain analysis

OJ Hale, HJ Cooper, MT Marty - Analytical Chemistry, 2023‏ - ACS Publications
Protein mass spectrometry imaging (MSI) with electrospray-based ambient ionization
techniques, such as nanospray desorption electrospray ionization (nano-DESI), generates …

Immunoaffinity Intact Top-Down Mass Spectrometry for Quantification of Neuron-Specific Enolase Gamma, a Low-Abundance Protein Biomarker

SAH van den Wildenberg, SAAM Genet… - Analytical …, 2024‏ - ACS Publications
Quantification of intact proteins in serum by liquid chromatography high-resolution mass
spectrometry (HRMS) may be a useful alternative to bottom-up LC-MS or conventional …

FREE: Enhanced Feature Representation for Isotopic Envelope Evaluation in Top-Down Mass Spectra Deconvolution

J Zhong, X Song, S Wang - Analytical Chemistry, 2024‏ - ACS Publications
The aim of deconvolution of top-down mass spectra is to recognize monoisotopic peaks from
the experimental envelopes in raw mass spectra. So accurate assessment of similarity …