Mass Spectrometry-intensive Top-down Proteomics: an Update on Technology Advancements and Biomedical Applications

Overview

Journal Anal Methods

Specialties Biochemistry
Chemistry

Date 2024 Jul 8

PMID 38973469

Authors

Tian Xu

Qianjie Wang

Qianyi Wang

Liangliang Sun

Affiliations

Soon will be listed here.

Abstract

Proteoforms are all forms of protein molecules from the same gene because of variations at the DNA, RNA, and protein levels, , alternative splicing and post-translational modifications (PTMs). Delineation of proteins in a proteoform-specific manner is crucial for understanding their biological functions. Mass spectrometry (MS)-intensive top-down proteomics (TDP) is promising for comprehensively characterizing intact proteoforms in complex biological systems. It has achieved substantial progress in technological development, including sample preparation, proteoform separations, MS instrumentation, and bioinformatics tools. In a single TDP study, thousands of proteoforms can be identified and quantified from a cell lysate. It has also been applied to various biomedical research to better our understanding of protein function in regulating cellular processes and to discover novel proteoform biomarkers of diseases for early diagnosis and therapeutic development. This review covers the most recent technological development and biomedical applications of MS-intensive TDP.

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