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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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Related Experiment Video

Updated: May 3, 2026

Overlapping Peptide Library to Map Qa-1 Epitopes in a Protein
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Epitope mapping with membrane-bound synthetic overlapping peptides.

Terumi Midoro-Horiuti1, Randall M Goldblum

  • 1Department of Pediatrics, University of Texas Medical Branch, Galveston, TX, USA.

Methods in Molecular Biology (Clifton, N.J.)
|February 12, 2014
PubMed
Summary

Synthetic overlapping peptides enable epitope mapping for monoclonal antibodies (mAbs) and patient antibodies. mAbs recognizing patient-shared epitopes can serve as valuable antibody surrogates.

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Area of Science:

  • Immunology
  • Biochemistry

Background:

  • Epitope mapping is crucial for understanding antibody-antigen interactions.
  • Monoclonal antibodies (mAbs) and antibodies from patient sera are key tools in immunological research.

Purpose of the Study:

  • To investigate the utility of synthetic overlapping peptides for epitope mapping.
  • To identify if monoclonal antibodies (mAbs) recognizing patient-shared epitopes can serve as surrogates for patient antibodies.

Main Methods:

  • Utilizing synthetic overlapping peptides for epitope identification.
  • Comparing epitopes recognized by monoclonal antibodies (mAbs) with those from patient sera.

Main Results:

  • Synthetic overlapping peptides effectively map epitopes for both monoclonal antibodies (mAbs) and patient antibodies.
  • Identified instances where mAbs recognize epitopes also targeted by patient antibodies.

Conclusions:

  • Epitope mapping with synthetic overlapping peptides is a robust method for antibody characterization.
  • Monoclonal antibodies (mAbs) that mirror patient antibody recognition sites hold potential as useful surrogates in research and diagnostics.