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. 2015 Oct 9;8:548. doi: 10.1186/s13104-015-1526-9

Fig. 1.

Fig. 1

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 bonds