1.4.1.8	(NH4)2SO4	-	399	
1.4.1.8	(NH4)2SO4	enzyme is sensitive to high concentrations	399	
1.4.1.8	2-oxoisovalerate	65 mM, 50% loss of specific activity	758	
1.4.1.8	Ag+	0.01 mM in assay buffer	75	
1.4.1.8	Ca2+	1 mM, partial inhibition	15	
1.4.1.8	CoCl2	-	414	
1.4.1.8	Cu2+	CuSO4: less inhibition compared with HgCl2 and CoCl2	19	
1.4.1.8	Cu2+	0.01 mM in assay buffer	19	
1.4.1.8	Cu2+	VDH2 : 1 mM, 35.5% inhibition	19	
1.4.1.8	diethyldicarbonate	20 mM, 60% loss of activity	310