원문정보
초록
영어
Pseudomonas aeruginosa (P. aeruginosa) forms biofilm under the control of quorum sensing (QS). This study was designed to find out new QS inhibitors of P. aeruginosa, bearing N-3-oxododecanoyl-L- HSL (3OC12) in mind as one of the representative furanone based QS signals. Newly synthesized compounds as QS inhibitors which were a series of six new analogues of (5-oxo-2, 5-dihydrofuran-3-yl) methyl alkanoate were examined whether to disturb the autoinducer (AI, 3OC12)-LasR interaction of P. aeruginosa using E. coli DH5α co-transferred pJN105L and pSC11 plasmids. Each of the six synthesized compounds was confirmed using such techniques as NMR and mass spectroscopy. A bacterial test was performed to identify the activity of quorum-sensing inhibition and efficacy of biofilm control. Furthermore, the binding energy of these libraries in the receptor protein was estimated by FlexX program to elucidate the nature of the receptor protein-autoinducer (AI) interaction. All six synthesized compounds were shown to be QS inhibitors that interfere with AI-LasR docking of P. aeruginosa.