... Colonies per 10 5 live, transfected cells platedb AGP73 AGP74 AGP 212 AGP 213 FR (10 ), DS FR(20), DS FR (10 ), DS, FR (10 ) FR (10 ), FR (10 ), DS) 4390 ± 311 .1c 12 96 ± 10 6.1c 10 048 ± 3 71. 7 613 2 ± 18 0.2 a The arrangement ... could terminate the migration of transcription forks, and thereby protect replication forks initiated at DS EBNA1 bound to FR impedes the progression of transcription forks The transcription reporter ... limits the replication of oriP-plasmids by impeding the progression of replication forks through FR The impedance is dependent on the number of EBNA1-binding sites within FR, and is observed with the...