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Related Concept Videos

Proteomics01:33

Proteomics

9.0K
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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Ribosome Profiling02:24

Ribosome Profiling

4.0K
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique...
4.0K

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Related Experiment Video

Updated: Dec 10, 2025

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

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Single-cell Proteomics: Progress and Prospects.

Ryan T Kelly1

  • 1Department of Chemistry and Biochemistry, Brigham Young University, Provo, Utah, USA.

Molecular & Cellular Proteomics : MCP
|August 28, 2020
PubMed
Summary
This summary is machine-generated.

Single-cell proteomics now quantifies over 1000 proteins per cell, overcoming limitations of bulk samples. This advance offers unprecedented biological insights and cellular heterogeneity analysis.

Keywords:
Cell biologyCell sortingFAIMSLabel-free quantificationMass SpectrometryTandem Mass SpectrometryTissues*nanoLCnanoPOTSsingle-cellultrasensitive

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Area of Science:

  • Biochemistry
  • Proteomics
  • Cell Biology

Background:

  • Mass spectrometry (MS)-based proteome profiling is powerful but requires large samples, obscuring cellular heterogeneity.
  • Bulk samples provide population averages, limiting detailed biological system understanding.
  • Single-cell proteomics offers a path to analyze biological systems at a granular level.

Purpose of the Study:

  • To review critical factors and parameters for optimizing single-cell and low-input proteome measurements.
  • To highlight recent technological advancements in single-cell proteomics.
  • To identify future opportunities for developing the field.

Main Methods:

  • Advances in sample processing techniques.
  • Improvements in chromatographic separations.
  • Enhanced mass spectrometry instrumentation.

Main Results:

  • Quantification of over 1000 proteins from individual mammalian cells is now achievable.
  • This represents a significant leap from previous requirements of thousands of cells for similar coverage.
  • The review discusses workflow optimization for low-input proteomic analyses.

Conclusions:

  • Single-cell proteomics has matured, enabling high-depth analysis of individual cells.
  • Optimized workflows and new technologies are driving the field forward.
  • Further development promises deeper understanding of cellular heterogeneity and biological processes.