猪繁殖与呼吸综合征病毒表达载体构建的无缝克隆方法

Overview

This protocol outlines the construction of a complex gene expression vector for the PRRSV gene. It is applicable when full-length gene fragments are not obtainable via single PCR or in vitro homologous recombination, allowing for efficient incorporation of multiple DNA fragments into a suitable vector.

Key Study Components

Research Area

• Molecular biology
• Genetic engineering
• Cloning techniques

Background

• Challenges in obtaining full-length gene expression vectors from cDNA
• Importance of homologous recombination for complex constructs
• Potential applications in gene function validation and therapeutic development

Methods Used

• Homologous recombination technology
• pVAX1 vector system
• PCR amplification and agarose gel electrophoresis

Main Results

• Successful construction of the pVAX1-PRRSV expression vector
• Effective incorporation of multiple DNA fragments
• Verification of fragment sizes by gel electrophoresis

Conclusions

• The study provides a reliable method for cloning large and complex gene expression vectors.
• This approach can enhance research in molecular biology, particularly in the context of viral genetic studies.

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