TABLE 4.

Enzymatic activities of wt InhA and InhA(Ts) (V238F)

Temperature (°C)a	Enzymatic activity (U/mg of protein) (% residual activityb) of:
	wt InhA	InhA(Ts) (V238F)
20	1.51 (100)	0.70 (100)
37	0.98 (65)	0.051 (7)
42	0.51 (34)	NDc (0)

^aTwo experiments were done for each temperature. 

^bNumbers in parentheses are percentages of residual activity at each temperature, assuming enzyme activity at 20°C to be 100%. 

^cND, not detected.