TABLE 2.

Free metal ATPase activity kinetic parameters of M. tuberculosis and M. smegmatis CtpC

Metal	M. tuberculosis CtpC		M. smegmatis CtpC
	Vmax	K1/2	Vmax	K1/2
	μmol/mg/h	nm	μmol/mg/h	nm
Mn2+	1.1 ± 0.2a	0.009 ± 0.008	1.06 ± 0.06	0.005 ± 0.002
Zn2+	0.30 ± 0.01	0.019 ± 0.001	0.38 ± 0.07	0.02 ± 0.01

^a Errors for V_max and K½ are asymptotic S.E. values reported by the fitting software Kaleidagraph (Synergy).