Abstract:
:With the widespread occurrence of bacterial resistance to antibiotics, the development of new strategies beyond conventional treatments is a pursuit taken by public health institutions worldwide. LasR, a transcription factor that controls quorum sensing in Pseudomonas aeruginosa, has emerged as an attractive therapeutic target for the next generation of antimicrobial agents. In the present study, a virtual screening workflow combining pharmacophore- and structure-based approaches was used to identify new LasR ligands. Five novel inducers and three inhibitors of LasR activity were validated experimentally by use of a cell-based assay. Interestingly, these compounds are molecularly distinct from the native signal molecule, N-3-oxododecanoyl-L-homoserine lactone (OHN), and may serve as lead structures for the design of new drugs. The binding modes of these compounds to the OHN binding site in LasR were predicted and used to identify the key interactions that contribute to the induction and inhibition of LasR activity.
journal_name
ChemMedChemjournal_title
ChemMedChemauthors
Skovstrup S,Le Quement ST,Hansen T,Jakobsen TH,Harmsen M,Tolker-Nielsen T,Nielsen TE,Givskov M,Taboureau Odoi
10.1002/cmdc.201200434subject
Has Abstractpub_date
2013-01-01 00:00:00pages
157-63issue
1eissn
1860-7179issn
1860-7187journal_volume
8pub_type
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