Table 4.

Spectrophotometric tetrathionate reductase enzymatic assays of cell lysates and partially purified proteins.

ORF	Gene expression sample	Activity
BOGUAY_2386	ONR cell lysate + IPTG	0.702 ± 0.346
BOGUAY_2386	2386 E1-7-15-17, purified protein first elution	93.391 ± 37.739
BOGUAY_2386	ONR E3-9-28-2017	21.939 ± 9.819
	Purified protein, third elution

Activity is given in μmol min^-1 mg protein^-1. The negative controls for BSA showed activities of 0.195 μmol min^-1 mg protein^-1. For all assays, activities are shown as units ± standard deviation (n ≥ 3).