New Report: Genome Mining Untaps the Antibiotics Biosynthetic Gene Cluster of Pseudoalteromonas xiamenensis STKMTI.2 from a Mangrove Soil Sediment

Mar Biotechnol (NY). 2022 Mar;24(1):190-202. doi: 10.1007/s10126-022-10096-1. Epub 2022 Feb 15.

Abstract

The marine bacterium Pseudoalteromonas xiamenensis STKMTI.2 was isolated from a mangrove soil sediment on Setokok Island, Batam, Indonesia. The genome of this bacterium consisted of 4,563,326 bp (GC content: 43.2%) with 1 chromosome, 2 circular plasmids, 2 linear plasmids, 4,824 protein-coding sequences, 25 rRNAs, 104 tRNAs, 4 ncRNAs, and 1 clustered, regularly interspaced, short palindromic repeated (CRISPR). This strain possessed cluster genes which are responsible for the production of brominated marine pyrroles/phenols (bmp), namely, bmp8 and bmp9. Other gene clusters responsible for the synthesis of secondary metabolites were identified using antiSMASH and BAGEL4, which yielded five results, namely, non-ribosomal peptides, polyketide-like butyrolactone, Lant class I, and RiPP-like, detected in chromosome 1, while prodigiosin was detected in the unnamed plasmid 5. This suggests that these whole genome data will be of remarkable importance for the improved understanding of the biosynthesis of industrially important bioactive and antibacterial compounds produced by P. xiamenensis STKMTI.2.

Keywords: Antibacterial compound; Bagel4; P. xiamenensis STKMTI.2; Secondary metabolites; antiSMASH.

MeSH terms

  • Anti-Bacterial Agents / metabolism
  • Genome, Bacterial
  • Multigene Family / genetics
  • Pseudoalteromonas* / genetics
  • Soil*

Substances

  • Anti-Bacterial Agents
  • Soil

Supplementary concepts

  • Pseudoalteromonas xiamenensis