
Western blot analysis of extracts from WI-38 cells, synchronized by serum starvation, using Phospho-MCM2 (Ser139) Antibody (upper), MCM2 (D7G11) XP ® Rabbit mAb #3619 (middle), and β-Actin (13E5) Rabbit mAb #4970 (lower). Cells were synchronized for 72 hours and then released by addition of serum and harvested at the times indicated.

Western blot analysis of extracts from U-2 OS cells, untreated (-) or treated with calf intestinal phosphatase (CIP) and λ phosphatase (+), using Phospho-MCM2 (Ser139) Antibody (upper) and MCM2 (D7G11) XP ® Rabbit mAb #3619 (lower).