2.1.2.7	45	-	96% loss of activity after 10 min, hydroxymethylserine plus tetrahydrofolate and pyridoxal 5'-phosphate prevent	485777	
2.1.2.7	50	-	complete inactivation after 10 min, 55% loss of activity in the presence of tetrahydrofolate, pyridoxal 5'-phosphate plus hydroxymethylserine or D-serine	485777	
2.1.2.7	50	-	value about	702735