4-hydroxytryptamine 4-phosphate methyltransferase activity

Catalysis of the reaction: 2 S-adenosyl-L-methionine (SAM) + 4-hydroxytryptamine 4-phosphate (norbaeocystin) = 2 S-adenosyl-L-homocysteine + psilocybin.

S-adenosylmethionine cycle

A cyclic series of interconversions involving S-adenosylmethionine, S-adenosyl-L-homocysteine, L-cysteine, and L-methionine. Couples utilization of the methyl group of SAM with recycling of the homocysteinyl group and regeneration of methionine.

glycyl-radical enzyme activating activity

Catalyzes the activation of an enzyme by generating an organic free radical on a glycine residue via a homolytic cleavage of S-adenosyl-L-methionine (SAM).

[choline trimethylamine-lyase]-activating enzyme activity

Catalyzes the activation of choline trimethylamine-lyase by generation of an organic free radical on a glycine residue via a homolytic cleavage of S-adenosyl-L-methionine (SAM).

tubulin-tyrosine carboxypeptidase

Catalysis of the reaction: C-terminal L-alpha-aminoacyl-L-glutamyl-L-glutamyl-L-tyrosyl-[tubulin] + H2O = C-terminal L-alpha-aminoacyl-L-glutamyl-L-glutamyl-[tubulin] + L-tyrosine.

protein-glutamic acid ligase activity, elongating

Catalytic reaction :(L-glutamyl)n-L-gamma-glutamyl-L-glutamyl-[protein] + ATP + L-glutamate = (L-glutamyl)n+1-L-gamma-glutamyl-L-glutamyl-[protein] + ADP + H+ + phosphate.

cyanophycin synthetase activity (L-arginine-adding)

Catalysis of the reaction: ATP + [L-Asp(4-L-Arg)]n-L-Asp + L-arginine = ADP + phosphate + [L-Asp(4-L-Arg)]n+1.

cyanophycin synthetase activity (L-aspartate-adding)

Catalysis of the reaction: ATP + [L-Asp(4-L-Arg)]n + L-Asp = ADP + phosphate + [L-Asp(4-L-Arg)]n-L-Asp.

obsolete alanylglutamate dipeptidase activity

OBSOLETE. Catalysis of the reaction: L-alanyl-L-glutamate + H2O = L-alanine + L-glutamate.

cystathionine gamma-synthase activity

Catalysis of the reaction: L-cysteine + O-succinyl-L-homoserine = H+ + L,L-cystathionine + succinate.