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. Author manuscript; available in PMC: 2021 Jan 24.
Published in final edited form as: Science. 2020 Jan 2;367(6476):458–463. doi: 10.1126/science.aay9981

Fig. 3.

Fig. 3.

(A) Atropospecific synthesis of tryptorubin A (1a). (B) Above, a RiPP codon that encodes for tryptorubin A’s linear peptide sequence; below, proposed biosynthetic pathway to 1a.