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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: Jul 17, 2025

Single-Cell Proteomics Preparation for Mass Spectrometry Analysis Using Freeze-Heat Lysis and an Isobaric Carrier

Single-Cell Proteomics Preparation for Mass Spectrometry Analysis Using Freeze-Heat Lysis and an Isobaric Carrier

Published on: December 9, 2022

Recent methodological advances towards single-cell proteomics.

Sooyeon Kim^1,2, Latiefa Kamarulzaman^1,3, Yuichi Taniguchi^1,2,3

¹Laboratory for Cell Systems Control, Center for Biosystems Dynamics Research, RIKEN.

Proceedings of the Japan Academy. Series B, Physical and Biological Sciences

|September 6, 2023

Summary

This summary is machine-generated.

Single-cell proteomics reveals individual cell functions, overcoming limitations of bulk analysis. Emerging technologies enhance throughput and sensitivity for deeper biological insights.

Keywords:

proteomics single-cell analysis single-cell omics single-molecule microscopy

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Last Updated: Jul 17, 2025

Single-Cell Proteomics Preparation for Mass Spectrometry Analysis Using Freeze-Heat Lysis and an Isobaric Carrier

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Area of Science:

Proteomics
Cell Biology
Genomics

Background:

Single-cell studies are crucial for understanding cellular heterogeneity.
Genomic and transcriptomic analyses alone cannot fully capture cellular functions.
Proteins are central to biological processes, making single-cell proteomics essential.

Approach:

Review of cutting-edge single-cell proteomics methodologies.
Focus on advancements in the last 5 years.
Integration of mass spectrometry, microscopy, and multi-omics analyses.

Key Points:

Miniaturized and automated sample preparation.
Advancements in artificial intelligence and single-molecule detection.
Improved throughput and sensitivity over conventional methods.

Conclusions:

Single-cell proteomics offers a deeper understanding of individual cell functions.
Emerging technologies are rapidly advancing the field.
This field is critical for analyzing heterogeneous biological specimens.