Table 2. Effect of salt on the kinetic parameters of dCA II esterase activity.

[NaCl], M	Kenz,* (M·s)-1	Kenz, % of control
dCA II
0.0	66.2 ± 1.0	100
0.1	88.0 ± 2.3	133
0.4	91.0 ± 2.0	138
1.0	102.0 ± 1.0	155
2.0	121.0 ± 2.1	183
hCA I
0.0	498.0 ± 7.5	100
0.1	120.0 ± 2.1	24

Enzymatic assays for esterase activity were performed essentially as described in ref. 18. Assay mixtures contained the indicated concentrations of NaCl and 0.54 μM hCA I or 3.37 μM dCA II.

^*Values are ± SE.