Journal
JOURNAL OF ANTIBIOTICS
Volume 63, Issue 8, Pages 492-498Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/ja.2010.74
Keywords
actinomycete; antibiotic profiling/fingerprint; luciferase; promoter-lux reporter; Staphylococcus aureus
Funding
- CIHR (Canadian Institutes of Health Research)
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We describe a collection of antibiotic-activated Staphylococcus aureus promoter-lux reporter strains that can be used to discriminate among antibiotic classes on the basis of their light production response profile. We screened over 400 culture supernatants from previously uncharacterized actinomycetes from soil for the production of aminocoumarin-type compounds and DNA-damaging agents. Novobiocin production was determined in three isolates of Streptomyces, and streptonigrin, a DNA-damaging agent, together with several other bioactive compounds (oxopropaline D and G), was identified from a novel Kitasatospora isolate. This array provides an effective and specific whole-cell approach to search for classes of antimicrobial compounds in unfractionated culture broths. The Journal of Antibiotics (2010) 63, 492-498, doi 10 1038/ja 2010 74, published online 7 July 2010
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