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Inducible gene expression systems in Lactococcus lactis

G M Djordjevic1, T R Klaenhammer

  • 1Department of Microbiology and Food Science, North Carolina State University, Raleigh 27695-7624, USA.

Molecular Biotechnology
|July 11, 1998
PubMed
Summary

Lactococcus lactis, a key dairy microbe, offers novel inducible gene-expression systems. These systems enable controlled protein production, advancing industrial bioprocessing and metabolic engineering applications.

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Area of Science:

  • Microbiology
  • Molecular Biology
  • Biotechnology

Background:

  • Lactococcus lactis is a crucial microorganism in industrial dairy fermentations.
  • Extensive research has identified and characterized numerous genes and gene expression signals in L. lactis.
  • Recent discoveries include naturally occurring, inducible gene-expression systems within L. lactis.

Purpose of the Study:

  • To explore the potential of novel gene-expression systems in Lactococcus lactis.
  • To leverage these systems for the development of genetically engineered expression cassettes.
  • To enable controlled production of proteins and enzymes for bioprocessing applications.

Main Methods:

  • Identification and characterization of naturally occurring gene-expression systems in L. lactis.

Related Experiment Videos

  • Design of genetically engineered expression cassettes utilizing identified systems.
  • Application of these systems for controlled protein and enzyme production.

    • Main Results:

    • Several naturally occurring, inducible gene-expression systems have been identified in L. lactis.
    • These systems can be engineered into expression cassettes for controlled gene expression.
    • Demonstrated potential for tailored protein and enzyme synthesis.

    Conclusions:

    • Novel gene-expression systems in L. lactis offer significant potential for biotechnological advancements.
    • These systems can be utilized to develop industrial cultures with enhanced metabolic traits.
    • Opens avenues for diverse bioprocessing applications through genetic engineering.