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Related Concept Videos

Proteomics01:33

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 proteomics...
Ribosome Profiling02:24

Ribosome Profiling

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 helps...

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Related Experiment Video

Updated: May 8, 2026

Large-scale Top-down Proteomics Using Capillary Zone Electrophoresis Tandem Mass Spectrometry
10:05

Large-scale Top-down Proteomics Using Capillary Zone Electrophoresis Tandem Mass Spectrometry

Published on: October 24, 2018

Developing top down proteomics to maximize proteome and sequence coverage from cells and tissues.

Dorothy R Ahlf1, Paul M Thomas, Neil L Kelleher

  • 1Department of Chemistry and Biochemistry and the Harper Cancer Institute, University of Notre Dame, Notre Dame, IN, United States.

Current Opinion in Chemical Biology
|August 31, 2013
PubMed
Summary
This summary is machine-generated.

Top down proteomics (TDP) now identifies over 1000 proteins and multiple proteoforms per protein. Advances in mass spectrometry and separation techniques are accelerating TDP

More Related Videos

Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification
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Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification

Published on: November 15, 2017

Related Experiment Videos

Last Updated: May 8, 2026

Large-scale Top-down Proteomics Using Capillary Zone Electrophoresis Tandem Mass Spectrometry
10:05

Large-scale Top-down Proteomics Using Capillary Zone Electrophoresis Tandem Mass Spectrometry

Published on: October 24, 2018

Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification
10:37

Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification

Published on: November 15, 2017

Area of Science:

  • Biochemistry
  • Analytical Chemistry
  • Proteomics

Background:

  • Mass spectrometry-based proteomics aims for accurate and high-throughput protein identification.
  • Traditional methods faced limitations for proteins under 70 kDa.

Purpose of the Study:

  • To highlight recent advancements in top down proteomics (TDP).
  • To discuss the expanding capabilities of TDP for identifying proteins and proteoforms.

Main Methods:

  • Improvements in intact protein separation techniques.
  • Utilization of high-performance mass spectrometry instruments.
  • Advancements in proteoform scoring algorithms.

Main Results:

  • TDP now achieves over 1000 protein identifications.
  • An average of 3-4 proteoforms are detected per protein.
  • Overcome limitations for analyzing proteins below 70 kDa.

Conclusions:

  • TDP is becoming a robust tool for biomedical research.
  • Future improvements will further enhance TDP's application and impact.
  • TDP is poised to address significant biomedical challenges.