Fig. 4

a Gene cluster in the genome of strain SR001 encoding biosynthesis of a putative cyanobactin related to viridisamide A. The patABCDEFG labelled for viridisamide A was named according to Fig. 4 a [35], and their predicted functions are listed in Table 5; b Alignment of cyanobactin precursor peptide according to [35]. Conserved motif LAELSEE is underlined, whereas conserved variable regions that are cleaved to form final cyanobactin are boxed