Complete Genome Sequence and Expression Profile of the Commercial Lytic Enzyme Producer Lysobacter Enzymogenes M497-1

DNA Res. 2017 Apr 1;24(2):169-177. doi: 10.1093/dnares/dsw055.

Abstract

Lysobacter enzymogenes M497-1 is a producer of commercialized achromopeptidase and is expected to harbour genes encoding various other antimicrobial enzymes. Here, we present the complete sequence of the genome of M497-1 and the expression profiles of the genes for various antimicrobial enzymes. Of the 117 peptidase-encoding genes found in the 6.1-Mb genome of M497-1, 15 genes (aside from the gene encoding the achromopeptidase) were expressed at a level higher than that of the average ribosomal protein genes in the 24-h culture. Thus, the strain was found more valuable than hitherto considered. In addition, M497-1 harbours 98 genes involved in the biosynthesis of various natural products, 16 of which are M497-1-specific across 4 Lysobacter species. A gene cluster starting at LEN_2603 through LEN_2673 among the 98 genes closely resembled the lysobactin biosynthesis gene cluster of Lysobacter sp. ATCC 53042. It is likely that M497-1 may produce lysobactin or related antibacterial compounds. Furthermore, comparative genomic analysis of M497-1 and four other Lysobacter species revealed that their core genome structure comprises 3,737 orthologous groups. Our findings are expected to advance further biotechnological application of Lysobacter spp. as a promising source of natural bioactive compounds.

Keywords: Lysobacter enzymogenes; RNA sequencing; genome sequence; lytic enzyme; metabolic potential.

MeSH terms

  • Base Sequence
  • Depsipeptides / biosynthesis
  • Gene Expression Regulation, Bacterial*
  • Genome Size
  • Genome, Bacterial*
  • Genomics
  • Lysobacter / genetics*
  • Sequence Analysis, RNA
  • Transcriptome*
  • Whole Genome Sequencing*

Substances

  • Depsipeptides
  • lysobactin