label: 4-hydroxytryptamine 4-phosphate methyltransferase activity
label_lc: 4-hydroxytryptamine 4-phosphate methyltransferase activity
description: "Catalysis of the reaction: 2 S-adenosyl-L-methionine (SAM) + 4-hydroxytryptamine 4-phosphate (norbaeocystin) = 2 S-adenosyl-L-homocysteine + psilocybin."