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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...
What are Proteins?01:55

What are Proteins?

Overview
Peptide Identification Using Tandem Mass Spectrometry01:33

Peptide Identification Using Tandem Mass Spectrometry

Tandem mass spectrometry, also known as MS/MS or MS2, is an analytical technique that employs two mass analyzers. Essentially it is a series of mass spectrometers that helps isolate a particular biomolecule and then helps study its chemical properties.
This technique helps gather information regarding the protein from which the peptide was obtained and to study the peptides’ amino acid sequence. Identifying peptides from a complex mixture is an important component of the growing field of...
The Proteasome Structure01:17

The Proteasome Structure

The ubiquitin-proteasome pathway is a well-known mechanism utilized by eukaryotic cells to remove cytoplasmic proteins that are misfolded, damaged, or no longer needed. In this pathway, the protein that needs to be eliminated undergoes a process called ubiquitination, where a chain of ubiquitin molecules is attached to the 48th lysine residue of the target protein. This ubiquitin modification helps the proteasome distinguish between a target protein and a healthy protein.
The proteasome is an...
Genomics02:02

Genomics

Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
Protein Networks02:26

Protein Networks

An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...

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Related Experiment Video

Updated: Jun 22, 2026

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

Introduction to proteomics.

Friedrich Lottspeich1

  • 1Protein Analytics, Max-Planck-Institute of Biochemistry, Martinsried, Germany.

Methods in Molecular Biology (Clifton, N.J.)
|June 23, 2009
PubMed
Summary
This summary is machine-generated.

This chapter details the evolution of proteomics, emphasizing the need for quantitative techniques to address complexity and dynamics. It compares various proteomics approaches and highlights the role of bioinformatics.

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Navigating the Mass Spectrometry-Based Proteomic Data Using Free Computational Tools
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Last Updated: Jun 22, 2026

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

Navigating the Mass Spectrometry-Based Proteomic Data Using Free Computational Tools
07:01

Navigating the Mass Spectrometry-Based Proteomic Data Using Free Computational Tools

Published on: August 19, 2025

Area of Science:

  • Proteomics and Protein Chemistry

Background:

  • Classical protein chemistry faced challenges with the complexity and dynamics of biological systems.
  • The evolution of proteomics necessitates quantitative methodologies for accurate analysis.

Purpose of the Study:

  • To depict the historical development of proteomics from classical protein chemistry.
  • To compare diverse proteomics techniques and their underlying principles.
  • To provide an outlook on the future of proteomics.

Main Methods:

  • Comparative analysis of protein-based versus peptide-based techniques.
  • Evaluation of gel-based versus non-gel-based proteomics strategies.
  • Assessment of targeted versus general proteomics approaches.
  • Comparison of isotopic labeling and label-free quantification methods.
  • Emphasis on the critical role of bioinformatics in proteomics.

Main Results:

  • Quantitative techniques are essential for valuable proteomics.
  • Various proteomics methodologies offer different advantages and disadvantages.
  • Informatics plays a crucial role in data analysis and interpretation.

Conclusions:

  • Proteomics has evolved significantly, driven by the need to overcome biological complexity.
  • The choice of proteomics technique depends on the specific research question.
  • Future proteomics advancements will likely involve integrated approaches and sophisticated data analysis.