Recombination and selectional forces in cyanopeptolin NRPS operons from highly similar,but geographically remote <Emphasis Type="Italic">Planktothrix</Emphasis> strains |
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| Authors: | Trine B Rounge Thomas Rohrlack Tom Kristensen Kjetill S Jakobsen |
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| Institution: | (1) Department of Biology, Centre for Ecological and Evolutionary Synthesis (CEES), University of Oslo, 0316 Oslo, Norway;(2) NIVA, Norwegian Institute for Water Research, 0411 Oslo, Norway;(3) Department of Molecular Biosciences, University of Oslo, 0316 Oslo, Norway;(4) Microbial Evolution Research Group (MERG), University of Oslo, 0316 Oslo, Norway |
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| Abstract: | Background Cyanopeptolins are nonribosomally produced heptapetides showing a highly variable composition. The cyanopeptolin synthetase
operon has previously been investigated in three strains from the genera Microcystis, Planktothrix and Anabaena. Cyanopeptolins are displaying protease inhibitor activity, but the biological function(s) is (are) unknown. Cyanopeptolin
gene cluster variability and biological functions of the peptide variants are likely to be interconnected. |
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