Table 1.

Inhibitors effect on NR activity.

Inhibitor	Concentration	Relative activity (%)
Sodium Azid	1.0 mM	50.67
	2.5 mM	22.72
	5 mM	8.81
	10 mM	0
Potassium Cyanid	1.0 mM	39.74
	2.5 mM	13.61
	5 mM	3.64
	10 mM	0
Sodium Thiocyanate	1.0 mM	62.02
	2.5 mM	30.8
	5 mM	11.5
	10 mM	7.14
DTT	1.0 mM	43.68
	2.5 mM	9.1
	5 mM	2.77
	10 mM	0
PMSF	1.0 mM	36.84
	2.5 mM	6.92
	5 mM	1.46
	10 mM	0
H2O2	1.0 mM	37.27
	2.5 mM	15.29
	5 mM	5.61
	10 mM	1.09
ß-mercaptoethanol	1.0 mM	20.02
	2.5 mM	0
	5 mM	0
	10 mM	0
Urea	1 mM	99.9
	2.5 mM	98.17
	5 mM	62.18
	10 mM	53.44
Phenol	1 mM	99.1
	2.5 mM	93.85
	5 mM	46.74
	10 mM	42.08