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Encapsulation of cells in agarose beads
1Department of Biochemistry and Molecular Bioogy, Thomas Jefferson University, Philadelphla, PA.
Methods in Molecular Biology (Clifton, N.J.)
|March 17, 2011
Summary
Embedding cells in agarose is crucial for analyzing large DNA fragments with pulsed-field gel electrophoresis (PFGE). The efficiency of subsequent steps depends on buffer and protein diffusion rates.
Area of Science:
- Molecular Biology
- Genetics
Background:
- Pulsed-field gel electrophoresis (PFGE) is essential for analyzing large DNA fragments.
- Protecting large DNA from shearing during sample preparation is critical for successful PFGE analysis.
Purpose of the Study:
- To highlight the importance of embedding cells in agarose for PFGE.
- To underscore the role of diffusion rates in the efficiency of PFGE sample preparation.
Main Methods:
- Cell embedding in agarose gel.
- Protein extraction and restriction enzyme digestion protocols.
- Analysis of DNA fragment integrity post-preparation.
Main Results:
- Agarose embedding effectively prevents DNA shearing during PFGE sample preparation.
- Optimized buffer and protein diffusion rates enhance the speed and efficiency of DNA analysis.
Conclusions:
- Cell embedding in agarose is a vital preliminary step for PFGE.
- Diffusion kinetics significantly impact the overall efficiency of large DNA fragment analysis using PFGE.
