S-Adenosyl-l-Methionine Salvage Impacts Psilocybin Formation in "Magic" Mushrooms.
Chembiochem
; 21(9): 1364-1371, 2020 05 04.
Article
in En
| MEDLINE
| ID: mdl-31802575
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.
Key words
Full text:
1
Database:
MEDLINE
Main subject:
Psilocybin
/
S-Adenosylmethionine
/
Adenosine
/
Adenosine Kinase
/
Adenosylhomocysteinase
/
Psilocybe
Language:
En
Journal:
Chembiochem
Journal subject:
BIOQUIMICA
Year:
2020
Type:
Article
Affiliation country:
Germany