TABLE 5.

Effect of sulfide on nitrate reductase activity produced by moeA mutants^a

Strain	Relevant genotype	Nitrate reductase activity (nmol min−1 mg of cell protein−1)
		LBGN	LBGN + S2−	LSMN	LSMN + S2−
BW545	Wild type	670	700	585	530
AH131	cysN-Km	630	725	570	625
AH69	moeA113	40	380	320	300
AH1	moeA103 cysN-Km	55	400	65	360
AH134	moeA113 cysN-Km	50	280	40	275

^aSodium molybdate concentrations were 1 mM in LBGN and 0.1 mM in LSMN. Sodium sulfide concentrations were 2 mM in LBGN and 0.2 mM in LSMN.