Fig. 1From: Genome-based analysis of non-ribosomal peptide synthetase and type-I polyketide synthase gene clusters in all type strains of the genus Herbidospora Presumed chemical structures of polyketide backbones synthesized by Herbidospora type-I polyketide synthase (PKS) gene clusters. R=H or methyl. The chemical structures are shown attached to the ACP of the last module by thioester bondsBack to article page