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Proteomics

Proteomics

A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...

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Related Experiment Video

Updated: Sep 26, 2025

Comprehensive Workflow of Mass Spectrometry-based Shotgun Proteomics of Tissue Samples

Comprehensive Workflow of Mass Spectrometry-based Shotgun Proteomics of Tissue Samples

Published on: November 13, 2021

Obtaining Complete Human Proteomes.

Ana Martinez-Val¹, Ulises H Guzmán¹, Jesper V Olsen¹

¹Novo Nordisk Foundation Center for Protein Research, Proteomics Program, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark;

Annual Review of Genomics and Human Genetics

|April 20, 2022

Summary

This summary is machine-generated.

Proteomics uses mass spectrometry (MS) to study protein functions and dynamics. Advances in MS technology enable deeper understanding of the human proteome and its modifications, with future potential for single-cell analysis.

Keywords:

fractionation mass spectrometry posttranslational modification proteome proteomics single cell

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Area of Science:

Biochemistry
Molecular Biology
Systems Biology

Background:

Proteins execute genomic information, and proteomics reveals their functions in biological systems.
Proteomics offers insights into dynamic regulatory layers like posttranslational modifications and protein interactions, beyond genomics and transcriptomics.
Mass spectrometry (MS)-based proteomics is crucial for system-wide proteome studies, aiding biomarker discovery and molecular biology research.

Purpose of the Study:

To review the evolution of MS technology and acquisition methods in proteomics.
To highlight advancements enabling comprehensive proteome analysis and deep characterization of posttranslational modifications.
To provide a perspective on the future of single-cell resolution proteomics.

Main Methods:

Mass spectrometry (MS)-based proteomics.
System-wide proteome acquisition.
Analysis of posttranslational modifications.

Main Results:

MS technologies have evolved to meet demands for speed, resolution, and quantitative accuracy.
Current MS methods allow for unprecedented depth in describing the human proteome and its dynamic posttranslational modifications.
The review details technological progress driving cutting-edge proteomics research.

Conclusions:

Advancements in MS technology are crucial for comprehensive proteome analysis.
Proteomics provides critical insights into cellular functions and disease mechanisms.
Future research directions include achieving single-cell resolution in proteomic studies.