J 2015

Designing and Implementing an Assay for the Detection of Rare and Divergent NRPS and PKS Clones in European, Antarctic and Cuban Soils

AMOS, G.C.A., C. BORSETTO, P. LASKARIS, Martin KRSEK, A.E. BERRY et. al.

Basic information

Original name

Designing and Implementing an Assay for the Detection of Rare and Divergent NRPS and PKS Clones in European, Antarctic and Cuban Soils

Name in Czech

Návrh a využití metody detekce nezvyklých a odlišných NRPS a PKS klonů v evropských, antarktických a kubánských půdách

Authors

AMOS, G.C.A., C. BORSETTO, P. LASKARIS, Martin KRSEK, A.E. BERRY, K.K. NEWSHAM, L. CALVO-BADO, D.A. PEARCE, C. VALLIN and E.M.H. WELLINGTON

Edition

Plos one, San Francisco, Public Library of Science, 2015, 1932-6203

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 3.057

Organization unit

Faculty of Science

UT WoS

000361797500060

Keywords (in Czech)

antibiotika; metagenomika; NRPS; PKS; půda; aktinobakterie; proteobakterie

Keywords in English

antibiotics; metagenomics; NRPS; PKS; actinobacteria; proteobacteria

Tags

Tags

International impact, Reviewed
Změněno: 9/4/2020 12:19, Mgr. Marie Šípková, DiS.

Abstract

V originále

The ever increasing microbial resistome means there is an urgent need for new antibiotics. Metagenomics is an underexploited tool in the field of drug discovery. In this study we aimed to produce a new updated assay for the discovery of biosynthetic gene clusters encoding bioactive secondary metabolites. PCR assays targeting the polyketide synthases (PKS) and non-ribosomal peptide synthetases (NRPS) were developed. A range of European soils were tested for their biosynthetic potential using clone libraries developed from metagenomic DNA. Results revealed a surprising number of NRPS and PKS clones with similarity to rare Actinomycetes. Many of the clones tested were phylogenetically divergent suggesting they were fragments from novel NRPS and PKS gene clusters. Soils did not appear to cluster by location but did represent NRPS and PKS clones of diverse taxonomic origin. Fosmid libraries were constructed from Cuban and Antarctic soil samples; 17 fosmids were positive for NRPS domains suggesting a hit rate of less than 1 in 10 genomes. NRPS hits had low similarities to both rare Actinobacteria and Proteobacteria; they also clustered with known antibiotic producers suggesting they may encode for pathways producing novel bioactive compounds. In conclusion we designed an assay capable of detecting divergent NRPS and PKS gene clusters from the rare biosphere; when tested on soil samples results suggest the majority of NRPS and PKS pathways and hence bioactive metabolites are yet to be discovered.