Journal article Open Access

Genome Sequences of Serratia Strains Revealed Common Genes in Both Serratomolides Gene Clusters

Marques Pereira, Catalina; Neves Proença, Diogo; V Morais, Paula

Biosurfactants are amphiphilic molecules produced by microorganisms with a hydrophilic and a hydrophobic group, able to reduce surface tension. These molecules are largely used in the environmental, food, pharmaceutical, medical, and cleaning industries, among others. Serratia strains are ubiquitous microorganisms with the ability to produce biosurfactants, such as serrawettins. These extracellular lipopeptides are described as biocides against many bacteria and fungi. This work used comparative genomics to determine the distribution and organization of the serrawettins W1 and W2 biosynthetic gene clusters in all the 84 publicly available genomes of the Serratia genus. Here, the serrawettin W1 gene clusters’ organization is reported for the first time. The serrawettin W1 biosynthetic gene swrW and serrawettin W2 biosynthetic gene swrA were present in 17 and 11 Serratia genomes, respectively. The same genes in the biosynthetic clusters frame the swrW and swrA biosynthetic genes. This work identified four genes common to all serrawettin gene clusters, highlighting their key potential in the serrawettins biosynthetic process.

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