Figure 8.
Random replication cannot progress through FRA16B region. (A) The scheme of pUCneoFRA16B plasmid. (B) The 2D electrophoresis of the replication intermediates isolated from 293A or Cos-1 cells transfected with pUCneoFRA16B or pUCneoFRARev plasmid. The pUCneoFRARev plasmid contains the FRA16B repeat in the reverse orientation. The intermediates isolated from 293A cells were isolated 6 h after transfection, and digested with EcoRI and HindIII. Replication intermediates isolated from Cos-1 cells 6 h after transfection were digested with EcoRI and HindIII; those isolated 24 h after transfection were digested with EcoRI, HindIII and DpnI.