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Related Concept Videos

Tagging and Fusion Proteins01:24

Tagging and Fusion Proteins

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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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High-throughput Purification of Affinity-tagged Recombinant Proteins
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Tagging Recombinant Proteins to Enhance Solubility and Aid Purification.

Sinéad T Loughran1, Dermot Walls2

  • 1Department of Life and Health Sciences, School of Health and Science, Dundalk Institute of Technology, Dundalk, Louth, Ireland. sinead.loughran@dkit.ie.

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

Protein fusion technology utilizes polypeptide "tags" to improve recombinant protein production and purification. These tags are essential for large-scale proteomic studies, aiding in expression, solubility, and purification of multiple proteins simultaneously.

Keywords:
Affinity chromatographyProteinSolubilityTag

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Proteomics

Background:

  • Protein fusion technology is crucial for efficient recombinant protein production and purification.
  • Genetically engineered polypeptide
  • tags
  • enhance protein expression, stability, solubility, folding, and purification.
  • Established and novel tags address challenges in recombinant protein handling.

Purpose of the Study:

  • To describe the rationale and applications of various affinity and solubility-enhancing tags.
  • To highlight the indispensable role of affinity tags in large-scale proteomic studies.
  • To provide an overview of established and emerging protein fusion technologies.

Main Methods:

  • Review of established and novel solubility-enhancing and affinity tags.
  • Discussion of the application of protein fusion technology in recombinant protein expression.
  • Analysis of the impact of tags on protein purification strategies.

Main Results:

  • Protein fusion technology significantly impacts recombinant protein production and purification efficiency.
  • Affinity tags are indispensable for parallel expression and purification in proteomic initiatives.
  • A repertoire of tags exists to address diverse protein expression and purification challenges.

Conclusions:

  • Protein fusion technology, particularly the use of affinity and solubility tags, is vital for modern molecular biology and proteomics.
  • These tags enable efficient handling of recombinant proteins, especially in large-scale studies.
  • The development and application of diverse tags continue to advance protein science.