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Updated: Mar 7, 2026

Highly Sensitive and Quantitative Detection of Proteins and Their Isoforms by Capillary Isoelectric Focusing Method
Published on: September 19, 2018
Isoelectric Point Separations of Peptides and Proteins
Melissa R Pergande1, Stephanie M Cologna2
1Department of Chemistry, University of Illinois at Chicago, Chicago, IL 60607, USA. mperga2@uic.edu.
Abstract:
The separation of ampholytic components according to isoelectric point has played an important role in isolating, reducing complexity and improving peptide and protein detection. This brief review outlines the basics of isoelectric focusing, including a summary of the historical achievements and considerations in experimental design. Derivative methodologies of isoelectric focusing are also discussed including common detection methods used. Applications in a variety of fields using isoelectric point based separations are provided as well as an outlook on the field for future studies.
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