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Related Concept Videos

Modern Molecular Taxonomy01:29

Modern Molecular Taxonomy

Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
Restriction Enzymes01:11

Restriction Enzymes

Restriction enzymes are bacterial enzymes used to cut DNA in a sequence-specific manner. To cleave DNA, they bind to specific palindromic sequences called restriction sites. Such palindromic DNA sequences or inverted repeats are commonly found in regions of functional significance, such as the origin of replication, gene operator sites, and regions containing transcription termination signals.
The host bacteria protect their own genomic DNA from these enzymes by methylating these sites. Some...

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Updated: Jul 5, 2026

Bacterial Artificial Chromosomes: A Functional Genomics Tool for the Study of Positive-strand RNA Viruses
12:20

Bacterial Artificial Chromosomes: A Functional Genomics Tool for the Study of Positive-strand RNA Viruses

Published on: December 29, 2015

Large-scale BAC clone restriction digest fingerprinting.

Carrie A Mathewson1, Jacqueline E Schein, Marco A Marra

  • 1Canada's Michael Smith Genome Sciences Center Vancouver, British Columbia, Canada.

Current Protocols in Human Genetics
|April 23, 2008
PubMed
Summary
This summary is machine-generated.

Restriction digest fingerprinting is a key method for characterizing large genomic clones like bacterial artificial chromosomes (BACs). This unit details a robust procedure for generating agarose gel-based BAC clone fingerprints for physical mapping and sequencing efforts.

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Last Updated: Jul 5, 2026

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Area of Science:

  • Genomics
  • Molecular Biology
  • Biotechnology

Background:

  • Restriction digest fingerprinting is essential for characterizing large-insert genomic clones such as bacterial artificial chromosomes (BACs), P1 artificial chromosomes (PACs), and Fosmids.
  • Clone fingerprinting is widely used in constructing clone-based physical maps, which serve as resources for positional cloning and support sequencing initiatives.

Purpose of the Study:

  • To describe a robust, large-scale procedure for generating agarose gel-based clone fingerprints.
  • To provide a standardized method for characterizing bacterial artificial chromosome (BAC) clones.

Main Methods:

  • Agarose gel electrophoresis
  • Restriction enzyme digestion
  • DNA fingerprinting techniques

Main Results:

  • Successful generation of reliable agarose gel-based fingerprints from BAC clones.
  • Demonstration of a robust and scalable procedure suitable for large-scale applications.

Conclusions:

  • The described method provides a reliable approach for BAC clone fingerprinting.
  • This technique is valuable for physical mapping and genome sequencing projects.