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Affinity Chromatography

Affinity Chromatography

Affinity chromatography is a powerful technique extensively utilized for separating and purifying specific biomolecules from complex mixtures. It capitalizes on the highly selective binding between an analyte and its counterpart, such as antibody-antigen interactions. The counterpart is immobilized on the stationary phase, forming an affinity column. The stationary phase typically consists of solid support, such as agarose or porous glass beads, immobilizing the affinity ligand. The mobile...

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Related Experiment Video

Updated: Sep 22, 2025

A Protocol for Phage Display and Affinity Selection Using Recombinant Protein Baits

A Protocol for Phage Display and Affinity Selection Using Recombinant Protein Baits

Published on: February 16, 2014

Ligand Selection for Affinity Chromatography Using Phage Display.

Krištof Bozovičar¹, Peter Molek¹, Barbara Jenko Bizjan²

¹Department of Pharmaceutical Biology, Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia.

Methods in Molecular Biology (Clifton, N.J.)

|May 18, 2022

Summary

Phage display and affinity selection enable discovery of specific binding peptides for affinity chromatography. This method uses directed evolution and next-generation sequencing (NGS) to identify and optimize ligands for custom applications.

Keywords:

Biopanning Combinatorial library Next-generation sequencing Peptide Phage display Randomization Screening

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Last Updated: Sep 22, 2025

A Protocol for Phage Display and Affinity Selection Using Recombinant Protein Baits

A Protocol for Phage Display and Affinity Selection Using Recombinant Protein Baits

Published on: February 16, 2014

Scalable High Throughput Selection From Phage-displayed Synthetic Antibody Libraries

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Published on: January 17, 2015

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Published on: August 27, 2021

Area of Science:

Biotechnology and Molecular Biology
Protein Engineering
Affinity Chromatography

Background:

Phage display is a powerful technique for discovering specific binding peptides and proteins.
In vitro affinity selection mimics evolutionary principles to identify ligands with desired properties.
Ligand discovery is crucial for developing advanced separation and purification techniques like affinity chromatography.

Purpose of the Study:

To detail the procedures for ligand selection for affinity chromatography using phage display.
To describe methods for optimizing identified ligands through directed evolution.
To outline the workflow for characterizing ligands and constructing affinity columns.

Main Methods:

Peptide phage display library screening with tailored in vitro affinity selection.
Directed evolution involving focused mutagenesis and rescreening of initial peptide hits.
Quantitative analysis of eluted binders using next-generation sequencing (NGS) for enrichment ranking.

Main Results:

Identification of specific binding peptides from combinatorial libraries.
Optimization of peptide ligands for predefined properties like pH- or ion strength-responsive binding.
Reduced enrichment bias and simplified selection of optimal ligand candidates through NGS.

Conclusions:

Phage display coupled with NGS provides an efficient and robust method for discovering and optimizing ligands for affinity chromatography.
The described workflow facilitates the development of custom affinity columns for diverse applications.
This approach accelerates the discovery of high-affinity and specific binders for biotechnological purposes.