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Updated: Feb 19, 2026

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

Phage Display and Selections on Cells.

Wieland Fahr¹, André Frenzel^2,3

¹Abteilung Biotechnologie, Institut für Biochemie, Biotechnologie und Bioinformatik, Technische Universität Braunschweig, Braunschweig, Germany.

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

|November 9, 2017

Summary

This summary is machine-generated.

Phage display antibody identification is challenging for cell surface receptors. This protocol details a cell-based panning strategy to isolate specific binders, including a depletion step to remove unwanted antibodies.

Keywords:

Antibody engineering Conformational epitope Flow cytometry Human antibodies Phage display Recombinant antibodies Therapeutic antibodies scFv

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Area of Science:

Biotechnology
Immunology
Molecular Biology

Background:

Phage display is a common method for antibody identification.
Recombinant expression or correct folding is difficult for many targets, such as cell surface receptors.
Existing methods are insufficient for identifying antibodies against these challenging targets.

Purpose of the Study:

To describe a cell-based panning protocol for identifying specific antibody binders to cell surface receptors.
To provide a method that overcomes limitations of traditional phage display for difficult targets.
To offer a detailed protocol with variations for practical application.

Main Methods:

A cell-based panning strategy was developed for antibody selection.
A depletion step was incorporated to eliminate antibodies binding to non-target molecules.
The protocol focuses on selecting binders against cell surface receptors.

Main Results:

The described protocol enables the isolation of specific antibody binders against cell surface receptors.
The inclusion of a depletion step effectively removes antibodies with unwanted specificities.
The method is adaptable and provides variations for different experimental needs.

Conclusions:

This cell-based phage display protocol is effective for identifying antibodies against challenging targets like cell surface receptors.
The method enhances specificity by incorporating a depletion step.
The detailed protocol and its variations offer a valuable tool for antibody discovery in biotechnology and immunology.