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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 proteomics...

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Related Experiment Video

Updated: May 27, 2026

Species Determination and Quantitation in Mixtures Using MRM Mass Spectrometry of Peptides Applied to Meat Authentication

Species Determination and Quantitation in Mixtures Using MRM Mass Spectrometry of Peptides Applied to Meat Authentication

Published on: September 20, 2016

Identification of pork quality parameters by proteomics.

Dick F M van de Wiel¹, Wei Li Zhang

¹Animal Sciences Group of Wageningen, University and Research Institute, Animal Breeding and Genomics Centre, ID-Lelystad, P.O. Box 65, 8200AB Lelystad, The Netherlands.

|November 9, 2011

Summary

Researchers identified key pork muscle proteins, including creatine phospho kinase (CPK) and desmin, as potential markers for predicting water-holding capacity (WHC). This finding could improve meat quality assessment and logistics for the pork industry.

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

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

Published on: November 15, 2017

Area of Science:

Proteomics
Meat Science
Biochemistry

Background:

Water-holding capacity (WHC) is a critical parameter for pork quality, impacting logistics and consumer satisfaction.
Predicting WHC immediately post-slaughter offers significant benefits to the meat industry.

Purpose of the Study:

To identify potential protein markers in porcine muscle associated with water-holding capacity (WHC).
To develop an optimized protocol for protein extraction for marker analysis.

Main Methods:

Proteome analysis using two-dimensional electrophoresis on porcine muscle samples.
Identification and quantification of differentially expressed proteins.

Main Results:

At least three, possibly eight, significantly changed proteins were identified as potential WHC markers.
Key identified proteins include creatine phospho kinase M-type (CPK), desmin, and SNF2L1.
An optimized protein extraction protocol was established.

Conclusions:

The identified proteins (CPK, desmin, SNF2L1) show promise as predictive markers for pork WHC.
Further research is required to validate these preliminary findings and explore their mechanistic link to WHC.