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Related Concept Videos

Immunoprecipitation01:20

Immunoprecipitation

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Immunoprecipitation, or IP, is a widely used technique that employs protein-antibody interactions to isolate proteins or protein complexes in their native state for studying protein-protein interactions, quaternary structures, or supramolecular complexes. Various modifications of the technique, including chromatin IP, cross-linking IP, and fluorescence IP, are commonly used.
Chromatin Immunoprecipitation
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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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Proteins are involved in several cellular processes and biochemical reactions. Analyzing a specific protein of interest requires it to be isolated from the other proteins in the cell. This is achieved by overexpressing the specific gene in a suitable host to produce large quantities of the target protein. A tag or label is recombined with the gene to produce a fusion protein containing the target protein and the tag. The tags on these fusion proteins can then be used for easy detection and...
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Author Spotlight: Optimizing Affinity Chromatography for His-Tagged FEN1 Protein
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Immunoaffinity Purification of Proteins.

Jennifer M Kavran1, Daniel J Leahy1

  • 1Johns Hopkins School of Medicine, Baltimore, MD 21209, USA.

Methods in Enzymology
|June 23, 2015
PubMed
Summary

This study presents a straightforward method for purifying proteins. It utilizes an immobilized antibody column for high-affinity protein capture in a single step.

Area of Science:

  • Biochemistry
  • Protein Chemistry
  • Immunotechnology

Background:

  • Protein purification is crucial for biochemical research and therapeutic development.
  • Existing methods can be complex, time-consuming, and may result in protein degradation.

Purpose of the Study:

  • To develop a rapid and efficient protein purification protocol.
  • To achieve high-affinity protein isolation using a single-step procedure.

Main Methods:

  • Development of a purification protocol employing an immobilized antibody column.
  • Application of the single-step, high-affinity purification technique.

Main Results:

  • Successful single-step purification of target proteins.
Keywords:
Binding bufferElution bufferImmunoaffinity purificationImmunoaffinty columnsNeutralization bufferSDS-PAGE

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  • Demonstration of high-affinity binding and recovery of proteins.

    • Conclusions:

    • The immobilized antibody column method offers an efficient approach for protein purification.
    • This protocol simplifies protein isolation, preserving protein integrity and function.