2.1.1.136	5-methyltetrahydrofolic acid	1 mM, activation to 119% of control	
2.1.1.136	DTT	1 mM + 1 mM PMSF, activation to 147% of control	
2.1.1.136	glycerol	10%, activation to 122% of control	
2.1.1.136	PMSF	1 mM + 1 mM DTT, activation to 147% of control