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The Production of C. elegans Transgenes via Recombineering with the galK Selectable Marker

The Production of C. elegans Transgenes via Recombineering with the galK Selectable Marker

Published on: January 11, 2011

Making BAC transgene constructs with lambda-red recombineering system for transgenic animals or cell lines.

Scott Holmes¹, Suzanne Lyman, Jen-Kang Hsu

¹The Neuroscience Center, University of North Carolina at Chapel Hill, 115 Mason Farm Road, Chapel Hill, NC, 27599, USA.

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

|September 21, 2014

Summary

Bacteria Artificial Chromosome (BAC) technology enables precise gene insertion for accurate in vivo gene expression. This method details using lambda-red recombineering to create BAC transgene constructs for research applications.

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Area of Science:

Genomics and Molecular Biology
Transgenic Technology

Background:

Bacteria Artificial Chromosomes (BACs) are crucial for genomic mapping, sequencing, and annotation.
BACs contain large DNA inserts, including genes and regulatory elements, essential for precise gene expression.
BACs facilitate in vivo gene replacement, ensuring transgene expression mirrors endogenous gene patterns.

Purpose of the Study:

To describe a detailed method for creating BAC transgene constructs.
To explain the use of lambda-red recombineering for transgene integration into BACs.
To address considerations for BAC transgene applications in cell lines and animal models.

Main Methods:

Utilizing lambda-red recombineering for targeted transgene integration within BAC DNA.
Detailed methodology for constructing modified BACs for gene expression studies.
Addressing critical factors like BAC coverage, integrity, and DNA quality for downstream applications.

Main Results:

Successful generation of BAC transgene constructs through recombineering.
Demonstration of a practical and effective method for modifying large DNA constructs.
Adaptability of recombineering principles to smaller plasmids and chromosome engineering.

Conclusions:

Lambda-red recombineering offers a robust approach for engineering BACs for transgene expression.
This method supports the development of precise gene expression systems for biological research.
The described techniques are versatile, applicable to various DNA engineering challenges.