ArticleScientific reports2017
Molecular characterization of a Rhodococcus jostii RHA1 γ-butyrolactone(-like) signalling molecule and its main biosynthesis gene gblA.
Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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5 citing papers in PubMed, 73 citations in OpenAlex.
- Characterization of a quorum-sensing communication based on gamma-butyrolactones inFrontiers in microbiology · 2026Article
- Phylogenetic analysis of the salinipostin γ-butyrolactone gene cluster uncovers new potential for bacterial signalling-molecule diversity.Microbial genomics · 2021Article
- Genome-Based Characterization of Plant-AssociatedFrontiers in microbiology · 2021Article
- Structural and Biochemical Characterization of AaL, a Quorum Quenching Lactonase with Unusual Kinetic Properties.Scientific reports · 2018Article
- A Rhodococcal Transcriptional Regulatory Mechanism Detects the Common Lactone Ring of AHL Quorum-Sensing Signals and Triggers the Quorum-Quenching Response.Frontiers in microbiology · 2018Article
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Authors and funding
3 authors at 1 institution in 1 country.
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Abstract
Rhodococcus genome sequence analysis has revealed a surprisingly large (and unexplored) potential for the production of secondary metabolites. Also, putative γ-butyrolactone gene clusters have been identified in some Rhodococci. These signalling molecules are known to regulate secondary metabolism in Streptomyces. This work provides evidence for synthesis of a γ-butyrolactone(-like) molecule by Rhodococci (RJB), the first report in the Rhodococcus genus. The Rhodococcus jostii RHA1 RJB molecule was detected by a reporter system based on the γ-butyrolactone receptor protein (ScbR) of Streptomyces coelicolor. This RJB is structurally identical to 6-dehydro SCB2, the predicted precursor of the S. coelicolor γ-butyrolactone SCB2. The R. jostii RHA1 key RJB biosynthesis gene was identified (gblA): Deletion of gblA resulted in complete loss of RJB synthesis whereas higher RJB levels were detected when gblA was overexpressed. Interaction of the RJB molecule with ScbR indicates that communication may occur between these two Actinomycete genera in their natural habitat. Furthermore, RJB may provide a highly relevant tool for awakening cryptic secondary metabolic gene clusters in Rhodococci. This study provides preliminary evidence that R. jostii RHA1 indeed synthesizes diffusible molecules with antimicrobial activity, but a possible role for RJB in this remains to be established.
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