Table 2.

Estimation of protein amounts and number of molecules for GyrA and TopoI.

Strain	ZnSO4 (μM)	Protein amount (ng)		Number of molecules
		GyrA	TopoI	GyrA	TopoI
R6	0	21.6 ± 3.3	12.4 ± 2.1	2,046 ± 315	1,364 ± 225
	75	22.5 ± 3.0	13.8 ± 1.7	2,133 ± 285	1,523 ± 187
	150	23.9 ± 2.5	12.4 ± 0.7	2,266 ± 241	1,359 ± 71
	300	24.1 ± 4.3	13.5 ± 2.0	2,290 ± 406	1,481 ± 219
PZntopA	0	24.3 ± 6.0	12.2 ± 1.8	2,971 ± 734	1,726 ± 255
	75	26.7 ± 4.5	20.2 ± 2.8	2,567 ± 435	2,250 ± 315
	150	28.4 ± 2.4	25.7 ± 3.7	2,739 ± 227	2,879 ± 411
	300	33.1 ± 5.7	35.9 ± 4.6	2,664 ± 459	3,352 ± 431
ΔtopAPZntopA	0	16.7 ± 4.4	1.5 ± 0.2	Nd	Nd
	75	20.1 ± 5.4	6.4 ± 1.2	1,555 ± 422	665 ± 109
	150	20.3 ± 6.1	8.3 ± 2.1	1,783 ± 532	848 ± 210
	300	24.0 ± 8.4	13.1 ± 4.9	1,961 ± 686	1,247 ± 460