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Sarah E. O’connor

4 papers in the library · 63 citations · publishing 2018-2026

Papers

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Specific and Multi‐Product Clade I and Clade IV Sesquiterpene Synthases Contribute to the Psilocybe cubensis Volatilome

ChemBioChem April 1, 2026 Sebastian Schober, Lisa Dorfmann, Karl Walther et al.

Apart from the psychedelic psilocybin, the metabolite spectrum of Psilocybe "magic mushrooms" comprises sesquiterpenes, a class of natural products known to exhibit receptor-modulating bioactivities. However, the composition of the sesquiterpene profile has largely remained an open question. Here, we report the characterization of five Psilocybe cubensis sesquiterpene synthases, both in vitro...

Clade III Synthases Add Cyclic and Linear Terpenoids to the Psilocybe Metabolome

ChemBioChem May 3, 2025 Nick Zschoche, Markus Gressler, Stefan Bartram et al. 1 citation

Psilocybe “magic mushrooms” are best known for their indolethylamine psilocybin, yet they encode enzymes for a much more diverse arsenal of small and potentially bioactive molecules. Herein, four Psilocybe cubensis clade III sesquiterpene synthases, CubB‐CubE, whose genes are differently expressed in fruiting bodies compared to vegetative mycelium are reported. CubB‐CubE were functionally...

A „Magic Mushroom“ Multi‐Product Sesquiterpene Synthase

ChemBioChem August 24, 2023 Eike Schäfer, Stefan Bartram, Felix Trottmann et al. 7 citations

Abstract Psilocybe “magic mushrooms” are chemically well understood for their psychotropic tryptamines. However, the diversity of their other specialized metabolites, in particular terpenoids, has largely remained an open question. Yet, knowledge on the natural product background is critical to understand if other compounds modulate the psychotropic pharmacological effects. CubA, the single...

Cytochrome P450 and O-methyltransferase catalyze the final steps in the biosynthesis of the anti-addictive alkaloid ibogaine from Tabernanthe iboga

Journal of Biological Chemistry July 20, 2018 Scott C. Farrow, Mohamed O. Kamileen, Jessica Meades et al. 55 citations

Monoterpenoid indole alkaloids are a large (∼3000 members) and structurally diverse class of metabolites restricted to a limited number of plant families in the order Gentianales. Tabernanthe iboga or iboga (Apocynaceae) is native to western equatorial Africa and has been used in traditional medicine for centuries. Howard Lotsof is credited with bringing iboga to the attention of Western...