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Enzymatic Synthesis of Psilocybin

Janis Fricke, Felix Blei, Dirk Hoffmeister

Angewandte Chemie International Edition August 1, 2017 DOI: 10.1002/anie.201705489 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Laboratory study Peer reviewed
Topics Psilocybin
Keywords Tryptamine Enzyme Biosynthesis Biochemistry Tryptophan Stereochemistry
Citations 210
Key points Four enzymes—PsiD, PsiK, PsiM, and PsiH—catalyze the biosynthesis of psilocybin from L-tryptophan, and a combined PsiD/PsiK/PsiM reaction produces psilocybin from 4-hydroxy-L-tryptophan.

Abstract

Abstract Psilocybin is the psychotropic tryptamine‐derived natural product of Psilocybe carpophores, the so‐called “magic mushrooms”. Although its structure has been known for 60 years, the enzymatic basis of its biosynthesis has remained obscure. We characterized four psilocybin biosynthesis enzymes, namely i) PsiD, which represents a new class of fungal l ‐tryptophan decarboxylases, ii) PsiK, which catalyzes the phosphotransfer step, iii) the methyltransferase PsiM, catalyzing iterative N‐methyl transfer as the terminal biosynthetic step, and iv) PsiH, a monooxygenase. In a combined PsiD/PsiK/PsiM reaction, psilocybin was synthesized enzymatically in a step‐economic route from 4‐hydroxy‐ l ‐tryptophan. Given the renewed pharmaceutical interest in psilocybin, our results may lay the foundation for its biotechnological production.

Comparable studies

Other experimental studies on psilocybin, most cited first.

Study Year Design Participants
Psilocybin induces schizophrenia-like psychosis in humans via a serotonin-2 agonist action Healthy human volunteers 1998 Experimental study
Validation of the revised Mystical Experience Questionnaire in experimental sessions with psilocybin Participants in controlled laboratory experiments receiving a moderate to high oral... 2015 Validation study using pooled data from five laboratory experiments n = 184
Broadband Cortical Desynchronization Underlies the Human Psychedelic State Healthy human participants 2013 Experimental study
Long-term follow-up of psilocybin-assisted psychotherapy for psychiatric and existential distress in patients with life-threatening cancer Participants with cancer-related psychiatric distress who completed a parent randomized... 2020 Long-term within-subjects follow-up analysis n = 15
Alterations of consciousness and mystical-type experiences after acute LSD in humans Participants in a study on acute LSD effects 2016 Experimental study

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