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S-Adenosyl-l-Methionine Salvage Impacts Psilocybin Formation in "Magic" Mushrooms.

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.

SUBMITTER: Demmler R

PROVIDER: S-EPMC7317531 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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S-Adenosyl-l-Methionine Salvage Impacts Psilocybin Formation in "Magic" Mushrooms.

Demmler Richard R Fricke Janis J Dörner Sebastian S Gressler Markus M Hoffmeister Dirk D

Chembiochem : a European journal of chemical biology 20200110 9

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) hydr ...[more]

PMID: 31802575

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