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.Základní údaje
Originální název
Designing and Implementing an Assay for the Detection of Rare and Divergent NRPS and PKS Clones in European, Antarctic and Cuban Soils
Název česky
Návrh a využití metody detekce nezvyklých a odlišných NRPS a PKS klonů v evropských, antarktických a kubánských půdách
Autoři
AMOS, G.C.A., C. BORSETTO, P. LASKARIS, Martin KRSEK, A.E. BERRY, K.K. NEWSHAM, L. CALVO-BADO, D.A. PEARCE, C. VALLIN a E.M.H. WELLINGTON
Vydání
Plos one, San Francisco, Public Library of Science, 2015, 1932-6203
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10600 1.6 Biological sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 3.057
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000361797500060
Klíčová slova česky
antibiotika; metagenomika; NRPS; PKS; půda; aktinobakterie; proteobakterie
Klíčová slova anglicky
antibiotics; metagenomics; NRPS; PKS; actinobacteria; proteobacteria
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 9. 4. 2020 12:19, Mgr. Marie Novosadová Šípková, DiS.
Anotace
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.