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Publication Abstract from PubMed

A shuttle vector pHSG396Sp was constructed to perform gene expression using Sphingomonas subterranea as a host. A new lasso peptide biosynthetic gene cluster, derived from Brevundimonas diminuta, was amplified by PCR and integrated to afford a expression vector pHSG396Sp-12697L. The new lasso peptide brevunsin was successfully produced by S. subterranea, harboring the expression vector, with a high production yield (10.2 mg from 1 L culture). The chemical structure of brevunsin was established by NMR and MS/MS experiments. Based on the information obtained from the NOE experiment, the three-dimensional structure of brevunsin was determined, which indicated that brevunsin possessed a typical lasso structure. This expression vector system provides a new heterologous production method for unexplored lasso peptides that are encoded by bacterial genomes.

Heterologous production of a new lasso peptide brevunsin in Sphingomonas subterranea.,Kodani S, Hemmi H, Miyake Y, Kaweewan I, Nakagawa H J Ind Microbiol Biotechnol. 2018 Nov;45(11):983-992. doi:, 10.1007/s10295-018-2077-6. Epub 2018 Sep 6. PMID:30191430^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.