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An improved method to identify BAC clones using pooled overgos.

Kavitha Madishetty1, Pascal Condamine, Jan T Svensson

  • 1Department of Botany and Plant Sciences, University of California, Riverside, CA 92521-0124, USA.

Nucleic Acids Research
|December 8, 2006
PubMed
Summary
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This study enhances bacterial artificial chromosome (BAC) library screening using overgo probes by reducing radioisotope and enzyme levels. This cost-effective method increases positive clone yield, making it ideal for large genomes.

Area of Science:

  • Genomics
  • Molecular Biology
  • Biotechnology

Background:

  • Screening bacterial artificial chromosome (BAC) libraries is crucial for genomic research.
  • Overgo probes are a standard method for BAC library screening.

Purpose of the Study:

  • To improve the efficiency and cost-effectiveness of BAC library screening using overgo probes.
  • To increase the yield of positive clones while reducing resource consumption.

Main Methods:

  • Developed a modified overgo probe labeling strategy using reduced radiolabel and enzyme levels.
  • Employed a hot pulse labeling with a cold nucleotide chase.
  • Extended probe exposure time to compensate for reduced specific activity.

Main Results:

Related Experiment Videos

  • Achieved increased yield of positive clones in BAC library screening.
  • Significantly reduced the levels of radioisotopes and enzyme required.
  • Demonstrated cost savings and decreased human radiation exposure.

Conclusions:

  • The improved overgo probe method offers a more attractive and economical approach for screening BAC libraries.
  • This technique is particularly beneficial for screening libraries from organisms with large genomes.