RT Journal Article SR Electronic T1 Discovery of Pandoraea pnomenusa RB38 N-acyl homoserine Lactone Synthase (PpnI) and its Complete Genome Sequence Analysis JF bioRxiv FD Cold Spring Harbor Laboratory SP 020180 DO 10.1101/020180 A1 Kok-Gan Chan A1 Robson Ee A1 Kah-Yan How A1 Siew-Kim Lee A1 Wai-Fong Yin A1 Yan-Lue Lim YR 2015 UL http://biorxiv.org/content/early/2015/05/31/020180.abstract AB In this study, we sequenced the genome of P. pnomenusa RB38 and reported the finding of a pair of cognate luxI/R homologs which we firstly coined as ppnI, which is found adjacent to a luxR homolog, ppnR. An additional orphan luxR homolog, ppnR2 was also discovered. Multiple sequence alignment revealed that PpnI is a distinct cluster of AHL synthase compared to those of its nearest phylogenetic neighbor, Burkholderia spp. When expressed heterologously and analysed using high resolution tandem mass spectrometry, PpnI directs the synthesis of N-octanoylhomoserine lactone (C8-HSL). To our knowledge, this is the first documentation of the luxI/R homologs of the genus of Pandoraea.