Fig. 4

Examples of bacteriocin gene clusters from the Subsection V cyanobacteria. The six different groups (classified according to Wang et al. [34]) identified from the Subsection V cyanobacteria are represented. The group I gene cluster shown was identified from W. intricata UH strain HT-29-1; group II gene cluster shown was identidied from M. repens PCC 10914; the group III and IV gene clusters shown were identidied from H. welwitschii UH strain IC-52-3; the group V gene cluster shown was identified from Fischerella sp. PCC 9431 and the group VI gene cluster shown was identified from Fischerella sp. PCC 9605. Putative precursor genes are represented by a red arrow, HlyD genes are represented by orange arrow, SurA genes are represented by green arrow, ABC transporter genes are represented by green arrow, other modification enzymes are represented by purple arrow, S8 peptidase genes are represented by yellow arrow and LanM genes are represented by pink arrow. Domains involved in cyanobacterial bacteriocin production and modification are highlighted under each gene (domain names derived from the Conserved Domain Database [48]