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. Author manuscript; available in PMC: 2019 May 4.
Published in final edited form as: Methods Enzymol. 2018 May 4;604:113–163. doi: 10.1016/bs.mie.2018.03.002

Figure 2. Canonical cyanobactin biosynthetic pathway.

Figure 2.

Top: The pat pathway to patellamides, with an expansion showing the amino acid sequence of PatE1, the substrate for biosynthetic enzymes. The precursor peptide substrate may be demarcated as described in the Text Box. The order of the modification occurs such that heterocyclization occurs first, followed by proteolysis and macrocyclization. Late stage tailoring may further elaborate the modified peptides.