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S‐Adenosyl‐l‐Methionine Salvage Impacts Psilocybin Formation in “Magic” Mushrooms

Richard Demmler, Janis Fricke, Sebastian Dörner, Markus Gressler, Dirk Hoffmeister

ChemBioChem December 4, 2019 DOI: 10.1002/cbic.201900649 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Experimental study Peer reviewed
Population Psilocybe cubensis enzymes (AdoK and SahH)
Topics Psilocybin
Keywords Biochemistry Adenosine kinase Biosynthesis Enzyme Nucleoside Natural product
Citations 31
Key findings Adenosine kinase and SAH hydrolase from Psilocybe cubensis support psilocybin biosynthesis by regenerating SAM and removing inhibitory SAH.

Abstract

Abstract Psychotropic Psilocybe mushrooms biosynthesize their principal natural product psilocybin in five steps, among them a phosphotransfer and two methyltransfer reactions, which consume one equivalent of 5′‐adenosine triphosphate (ATP) and two equivalents of S ‐adenosyl‐ l ‐methionine (SAM). This short but co‐substrate‐intensive pathway requires nucleoside cofactor salvage to maintain high psilocybin production rates. We characterized the adenosine kinase (AdoK) and S ‐adenosyl‐ l ‐homocysteine (SAH) hydrolase (SahH) of Psilocybe cubensis . Both enzymes are directly or indirectly involved in regenerating SAM. qRT‐PCR expression analysis revealed an induced expression of the genes in the fungal primordia and carpophores. A one‐pot in vitro reaction with the N ‐methyltransferase PsiM of the psilocybin pathway demonstrates a concerted action with SahH to facilitate biosynthesis by removal of accumulating SAH.

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
Enzymatic Synthesis of Psilocybin 2017 Laboratory study

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