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Related Experiment Videos

BcefI, a new type IIS restriction endonuclease.

P Venetianer1, A Orosz

  • 1Institute of Biochemistry, Biological Research Center, Szeged, Hungary.

Nucleic Acids Research
|April 11, 1988
PubMed
Summary
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Researchers discovered a novel Type IIS restriction endonuclease in Bacillus cereus. This enzyme recognizes the ACGGC sequence and cleaves DNA with some variability, offering new tools for molecular biology.

Area of Science:

  • Molecular Biology
  • Enzymology
  • Microbiology

Background:

  • Restriction endonucleases are crucial tools in molecular biology for DNA manipulation.
  • Type IIS enzymes offer unique cleavage patterns distinct from Type II enzymes.

Purpose of the Study:

  • To identify and characterize a novel restriction endonuclease from Bacillus cereus.
  • To determine the recognition sequence and cleavage site of the new enzyme.

Main Methods:

  • Isolation and partial purification of the enzyme from Bacillus cereus subsp. fluorescens.
  • Characterization of enzyme activity, including determination of recognition sequence and cleavage site.

Main Results:

  • A new Type IIS restriction endonuclease was identified and partially purified.

Related Experiment Videos

  • The enzyme recognizes the nonpalindromic sequence ACGGC.
  • Cleavage occurs at a distance from the recognition site with a +/- 1 basepair uncertainty.

    • Conclusions:

    • The newly identified enzyme expands the repertoire of Type IIS restriction endonucleases.
    • Its unique recognition and cleavage properties may be valuable for specific DNA engineering applications.