Highlights on the capacities of "Gel-based" proteomics

<p>Abstract</p> <p>Gel-based proteomic is the most popular and versatile method of global protein separation and quantification. This is a mature approach to screen the protein expression at the large scale, and a cheaper approach as compared with gel-free proteomics. Based on two...

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Main Author: Chevalier François
Format: Article
Language:English
Published: BMC 2010-04-01
Series:Proteome Science
Online Access:http://www.proteomesci.com/content/8/1/23
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author Chevalier François
author_facet Chevalier François
author_sort Chevalier François
collection DOAJ
description <p>Abstract</p> <p>Gel-based proteomic is the most popular and versatile method of global protein separation and quantification. This is a mature approach to screen the protein expression at the large scale, and a cheaper approach as compared with gel-free proteomics. Based on two independent biochemical characteristics of proteins, two-dimensional electrophoresis combines isoelectric focusing, which separates proteins according to their isoelectric point, and SDS-PAGE, which separates them further according to their molecular mass. The next typical steps of the flow of gel-based proteomics are spots visualization and evaluation, expression analysis and finally protein identification by mass spectrometry. For the study of differentially expressed proteins, two-dimensional electrophoresis allows simultaneously to detect, quantify and compare up to thousand protein spots isoforms, including post-translational modifications, in the same gel and in a wide range of biological systems. In this review article, the limits, benefits, and perspectives of gel-based proteomic approaches are discussed using concrete examples.</p>
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spelling doaj.art-f8a1ada7858b4b7485c8059b7dff91282022-12-21T19:58:53ZengBMCProteome Science1477-59562010-04-01812310.1186/1477-5956-8-23Highlights on the capacities of "Gel-based" proteomicsChevalier François<p>Abstract</p> <p>Gel-based proteomic is the most popular and versatile method of global protein separation and quantification. This is a mature approach to screen the protein expression at the large scale, and a cheaper approach as compared with gel-free proteomics. Based on two independent biochemical characteristics of proteins, two-dimensional electrophoresis combines isoelectric focusing, which separates proteins according to their isoelectric point, and SDS-PAGE, which separates them further according to their molecular mass. The next typical steps of the flow of gel-based proteomics are spots visualization and evaluation, expression analysis and finally protein identification by mass spectrometry. For the study of differentially expressed proteins, two-dimensional electrophoresis allows simultaneously to detect, quantify and compare up to thousand protein spots isoforms, including post-translational modifications, in the same gel and in a wide range of biological systems. In this review article, the limits, benefits, and perspectives of gel-based proteomic approaches are discussed using concrete examples.</p>http://www.proteomesci.com/content/8/1/23
spellingShingle Chevalier François
Highlights on the capacities of "Gel-based" proteomics
Proteome Science
title Highlights on the capacities of "Gel-based" proteomics
title_full Highlights on the capacities of "Gel-based" proteomics
title_fullStr Highlights on the capacities of "Gel-based" proteomics
title_full_unstemmed Highlights on the capacities of "Gel-based" proteomics
title_short Highlights on the capacities of "Gel-based" proteomics
title_sort highlights on the capacities of gel based proteomics
url http://www.proteomesci.com/content/8/1/23
work_keys_str_mv AT chevalierfrancois highlightsonthecapacitiesofgelbasedproteomics