Gel-Based and Gel-Free Quantitative Proteomics Approaches at a Glance

Gel-Based and Gel-Free Quantitative Proteomics Approaches at a Glance

Two-dimensional gel electrophoresis (2-DE) is widely applied and remains the method of choice in proteomics; however, pervasive 2-DE-related concerns undermine its prospects as a dominant separation technique in proteome research. Consequently, the state-of-the-art shotgun techniques are slowly taking over and utilising the rapid expansion and advancement of mass spectrometry (MS) to provide a ...

Gel-Free Proteome Analysis Isotopic Labelling Vs. Label-Free Approaches for Quantitative Proteomics

gel-based proteomics

proteomics has emerged since 1995 for studying the total proteome of cells, tissues, or organisms at any condition. the study of proteins has a fundamental importance because they are the functional and final molecules of the gene expression process and proteomics could be a valuable technique for achieving this purpose. mass spectrometry is a complementary technique for proteomics that allows ...

Gel-free and gel-based proteomics in Bacillus subtilis: a comparative study.

The proteome of exponentially growing Bacillus subtilis cells was dissected by the implementation of shotgun proteomics and a semigel-based approach for a particular exploration of membrane proteins. The current number of 745 protein identifications that was gained by the use of two-dimensional gel electrophoresis could be increased by 473 additional proteins. Therefore, almost 50% of the 2500 ...

Differential proteomics: an overview of gel and non-gel based approaches.

The comprehensive analysis of gene expression in complex biological systems has demanded the development of new technologies to study the cell transcriptome and the cell proteome. Each approach has advantages and disadvantages from both the conceptual and the methodological viewpoints. Differential proteomics, the comparison of distinct proteomes (eg normal versus diseased cells, diseased versu...