Table 4. Effect of the phosphorylation of rat Prdx6 in vitro on PLA2 activity.
Recombinant rat Prdx6 was phosphorylated by incubation with ERK2 (10 µg/ml). Activity was measured in the absence of Ca2+. Values are means ± S.E.M. for three to five independent experiments.
| Basal (nmol/min per mg of protein) | Phosphorylated (nmol/min per mg of protein) |
|||
|---|---|---|---|---|
| pH 4.0 | pH 7.4 | pH4.0 | pH7.4 | |
| No additions | 103 ± 1 | 50 ± 1 | 1281±22* | 1208 ± 16* |
| +MJ33 (3 mol%) | 19 ± 1† | 18 ± 2† | 18 ± 1† | 17 ± 1† |
| +SP-A (50 mg/ml) | 36 ± 3† | 22 ± 1† | 24 ± 1*,† | 22 ± 1† |
P < 0.05 compared with corresponding basal.
P < 0.05 compared with the corresponding no additions.