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Epitope tagging genomic DNA using a CD-tagging Tn10 minitransposon
C A Telmer1, P B Berget, B Ballou
1Carnegie Mellon University, Pittsburgh, PA, USA.
Biotechniques
|February 19, 2002
Summary
We developed an efficient CD tagging system using a mini-transposon vector for epitope tagging cloned genes. This method successfully tagged the human nucleolin gene, producing correctly localized and spliced protein in HeLa cells.
Area of Science:
- Molecular Biology
- Genetics
- Biotechnology
Background:
- Epitope tagging is crucial for protein studies.
- Existing methods can be inefficient or complex.
- A streamlined system for gene tagging is needed.
Purpose of the Study:
- To develop and validate an efficient CD tagging system for cloned genes.
- To demonstrate the system's efficacy using the human nucleolin gene.
- To confirm successful protein expression and localization post-tagging.
Main Methods:
- Utilized a mini-Tn10 transposon delivery vector for CD tagging.
- Applied the system to a lambdaFIX genomic clone of the human nucleolin gene.
- Transfected HeLa cells with the tagged human nucleolin gene.
Main Results:
- The CD tagging system proved efficient for cloned genes.
- Successfully tagged the human nucleolin gene.
- Confirmed expression of correctly spliced tagged transcript and appropriately localized tagged protein in HeLa cells.
Conclusions:
- The developed CD tagging system is effective for gene and protein analysis.
- This method facilitates the study of protein expression and localization.
- Offers a robust tool for molecular biology research.
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