Naslov
A novel docking domain interface model that can predict recombination between homoeologous modular biosynthetic gene clusters

Autori
Starčević, Antonio ; Diminić, Janko ; Žučko, Jurica ; Elbekali, Mouhsine ; Schlosser, Tobias ; Lisfi, Mohamed ; Vukelić, Ana ; Long, F Paul ; Hranueli, Daslav ; Cullum, John

Izvornik
Journal of industrial microbiology & biotechnology (1367-5435) 38 (2011), 9; 1295-1304

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
polyketide synthase; non-ribosomal peptide synthetase; Streptomyces; Bacillus; chi sequence

Sažetak
An in silico model for homoeologous recombination between gene clusters encoding modular polyketide synthases (PKS) or non-ribosomal peptide synthetases (NRPS) was developed. This model was used to analyse recombination between 12 PKS clusters from Streptomyces species and related genera to predict if new clusters might give rise to new products. In many cases, there were only a limited number of recombination sites (about 13 per cluster pair) suggesting that recombination may pose constraints on the evolution of PKS clusters. Most recombination events occurred between pairs of ketosynthase (KS) domains, allowing the biosynthetic outcome of the recombinant modules to be predicted. About 30% of recombinants were predicted to produce polyketides. Four NRPS clusters from Streptomyces strains were also used for in silico recombination. They yielded a comparable number of recombinants to PKS clusters, but the adenylation (A) domains contained the largest proportion of recombination events ; this might be a mechanism for producing new substrate specificities. The extreme G+C-content, the presence of linear chromosomes and plasmids as well as a lack of a mutSL-mismatch repair system should favour production of recombinants in Streptomyces species.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

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