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Bioremediation00:46

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Generation of Marked and Markerless Mutants in Model Cyanobacterial Species
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Generation of Marked and Markerless Mutants in Model Cyanobacterial Species

Published on: May 29, 2016

Exploiting cyanobacterial P450 pathways.

Faith O Robert1, Jagroop Pandhal, Phillip C Wright

  • 1ChELSI Institute, Department of Chemical and Process Engineering, The University of Sheffield, Mappin Street, S1 3JD, Sheffield, UK.

Current Opinion in Microbiology
|March 20, 2010
PubMed
Summary
This summary is machine-generated.

Cyanobacteria possess Cytochrome P450s (enzymes) involved in natural product synthesis and bioremediation. Functional expression in E. coli produced valuable sesquiterpenes, highlighting their biotechnological potential.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Biotechnology

Background:

  • Cytochrome P450s (P450s) are crucial hemoprotein oxygenases in natural product biosynthesis.
  • Cyanobacteria, oxygenic photosynthetic microbes, are recognized for their diverse natural product production and harbor numerous P450 genes.
  • Some cyanobacterial P450s exhibit eukaryotic membrane-bound characteristics, unlike typical bacterial cytoplasmic forms.

Purpose of the Study:

  • To investigate the presence and functional expression of Cytochrome P450s from cyanobacteria.
  • To explore the potential of cyanobacterial P450s in producing valuable natural products and their role in bioremediation.

Main Methods:

  • Genomic analysis to identify P450 genes in various cyanobacterial species.
  • Functional expression of selected Nostoc spp. P450s and associated enzymes in Escherichia coli.
  • Biochemical assays to confirm enzyme activity and product identification.

Main Results:

  • Over 100 P450 genes have been predicted across diverse cyanobacterial species.
  • Successful functional expression of Nostoc spp. P450s in E. coli yielded sesquiterpenes: germacradienol, germacrene, and B-elemene.
  • Demonstrated potential for P450s in bioremediation, including alkane breakdown.

Conclusions:

  • Cyanobacterial P450s represent a promising resource for natural product synthesis and biotechnological applications.
  • The successful production of sesquiterpenes underscores the potential for engineering these pathways.
  • Further research is needed to elucidate the reasons for failed expression in some cases and to harness the full potential of these enzymes.