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. 2022 Jun 27;18(7):774–781. doi: 10.1038/s41589-022-01054-y

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Fig. 3 — Roles of PS, LDS and C7D in the biosynthesis of unusual sterols (Δ7(8) and Δ9(11)) and triterpene saponins (Δ7(8) and Δ9(11)). The different colored arrows represent taxa-specific sterol- or saponin-biosynthetic routes. Solid and dashed arrows represent single and multi-step reactions, respectively.