Fig. 8.
Effect of thrombin on CD45 and Lck reconstituted deficient clones. (A) Thrombin-induced [Ca2+]i responses. JE6.1 (□), J45.01 (⊞), J45.01/CD45 (⧫), JCaM1 (▴), or JCaM1/Lck (◊) were stimulated with 100 nmol/L thrombin and fluorescence analyzed as a function of time. (B and C) Thrombin-mediated phosphorylation of p38MAPK. Cells were stimulated with 100 nmol/L thrombin for the times indicated. Proteins from cell lysates were subjected to SDS-PAGE as described in the legend to Fig 4 and were transferred to Immobilon membranes for Western blotting using phospho-specific p38 MAPK antibody. Equal amounts of p38 MAPK were detected in each condition (not shown).