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Related Experiment Video

Updated: Jul 11, 2026

Generation of Plasmid Vectors Expressing FLAG-tagged Proteins Under the Regulation of Human Elongation Factor-1α Promoter Using Gibson Assembly
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Generation of Plasmid Vectors Expressing FLAG-tagged Proteins Under the Regulation of Human Elongation Factor-1α Promoter Using Gibson Assembly

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General strategy for constructing large HSV-1 plasmid vectors that co-express multiple genes.

X Wang1, G R Zhang, M Sun

  • 1Children's Hospital, Boston, MA, USA.

Biotechniques
|July 24, 2001
PubMed
Summary

Researchers developed a method to create large Herpes simplex virus type 1 (HSV-1) plasmid vectors for co-expressing multiple genes. These engineered HSV-1 vectors efficiently deliver and express genes in cultured cells and the rat brain.

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Area of Science:

  • Molecular Biology
  • Neuroscience
  • Gene Therapy

Background:

  • Herpes simplex virus type 1 (HSV-1) plasmid vectors offer potential for neuronal gene transfer due to their large genome size.
  • The capacity of HSV-1 vectors to co-express multiple genes is advantageous for complex genetic applications.

Purpose of the Study:

  • To establish a general strategy for constructing large HSV-1 plasmid vectors capable of co-expressing multiple genes.
  • To demonstrate the efficiency of these vectors in packaging, delivery, and gene expression in biological systems.

Main Methods:

  • Development of a strategy linking each transcription unit to an antibiotic resistance gene for genetic selection.
  • Assembly of large HSV-1 vectors (26 or 31 kb) containing two transcription units and two or three genes.
  • Packaging of vectors into HSV-1 particles using a helper virus-free system.

Main Results:

  • Successfully constructed large HSV-1 vectors carrying multiple genes.
  • Efficient packaging of these vectors into HSV-1 particles.
  • Demonstrated successful expression of two or three genes in both cultured cells and the rat brain.

Conclusions:

  • The developed strategy enables the construction of large HSV-1 vectors for co-expressing multiple genes.
  • These engineered vectors are efficiently packaged and functional in vivo, supporting gene expression in the rat brain.
  • The findings highlight the potential of multi-gene HSV-1 vectors for various neuroscience and gene therapy applications.