A novel actinomycete strain de-replication approach based on the diversity of polyketide synthase and nonribosomal peptide synthetase biosynthetic pathways

The actinomycetes traditionally represent one of the most important sources for the discovery of new metabolites with biological activity; and many of these are described as being produced by polyketide synthases (PKS) and nonribosomal peptide synthetases (NRPS). We present a strain characterization...

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Veröffentlicht in:Applied microbiology and biotechnology 2005-06, Vol.67 (6), p.795-806
Hauptverfasser: AYUSO, Angel, CLARK, Desmond, GONZALEZ, Ignacio, SALAZAR, Oscar, ANDERSON, Annaliesa, GENILLOUD, Olga
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container_issue 6
container_start_page 795
container_title Applied microbiology and biotechnology
container_volume 67
creator AYUSO, Angel
CLARK, Desmond
GONZALEZ, Ignacio
SALAZAR, Oscar
ANDERSON, Annaliesa
GENILLOUD, Olga
description The actinomycetes traditionally represent one of the most important sources for the discovery of new metabolites with biological activity; and many of these are described as being produced by polyketide synthases (PKS) and nonribosomal peptide synthetases (NRPS). We present a strain characterization system based on the metabolic potential of microbial strains by targeting these biosynthetic genes. After an initial evaluation of the existing bias derived from the PCR detection in a well defined biosynthetic systems, we developed a new fingerprinting approach based on the restriction analysis of these PKS and NRPS amplified sequences. This method was applied to study the distribution of PKS and NRPS biosynthetic systems in a collection of wild-type actinomycetes isolated from tropical soil samples that were evaluated for the production of antimicrobial activities. We discuss the application of this tool as an alternative characterization approach for actinomycetes and we comment on the relationship observed between the presence of PKS-I, PKS-II and NRPS sequences and the antimicrobial activities observed in some of the microbial groups tested.
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subjects Actinobacteria - genetics
Actinobacteria - metabolism
Anti-Bacterial Agents - biosynthesis
Anti-Bacterial Agents - pharmacology
Antifungal Agents - metabolism
Antifungal Agents - pharmacology
Bacteria - drug effects
Biological and medical sciences
Biology of microorganisms of confirmed or potential industrial interest
Biotechnology
Candida albicans - drug effects
DNA Fingerprinting
Fundamental and applied biological sciences. Psychology
Genes, Bacterial
Genetic Variation
Metabolites
Microbial Sensitivity Tests
Microbiology
Miscellaneous
Mission oriented research
Molecular Sequence Data
Peptide Synthases - biosynthesis
Peptide Synthases - genetics
Peptides
Polyketide Synthases - biosynthesis
Polyketide Synthases - genetics
Polymerase Chain Reaction
Soil Microbiology
Tropical Climate
Tropical environments
title A novel actinomycete strain de-replication approach based on the diversity of polyketide synthase and nonribosomal peptide synthetase biosynthetic pathways
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