Reaction catalyzed by glycine hydroxymethyltransferase (2.1.2.1)
+
+
H2O
=
+
5,10-methenyl-tetrahydropteroyl pentaglutamate
+
glycine
+
H2O
=
5-formyl-tetrahydropteroyl pentaglutamate
+
L-serine
