Transcriptional activation function is not required for stimulation of DNA replication by bovine papillomavirus type 1 E2

• Published in: Journal of Virology Vol. 70; no. 10; pp. 7264 - 7269
• Main Authors: Grossel, M.J. (Tufts University, Boston, MA.), Sverdrup, F, Breiding, D.E, Androphy, E.J
• Format: Journal Article
• Language: English
• Published: United States American Society for Microbiology 01-10-1996
• Subjects: ADN; Animals; bovine papillomavirus 1; Bovine papillomavirus 1 - genetics; Cattle; DNA Replication; DNA, Viral - genetics; DNA-Binding Proteins - genetics; MUTANT; MUTANTES; PAPILLOMAVIRUS BOVIN; PROTEINAS AGLUTINANTES; PROTEINE DE LIAISON; REPLICACION; REPLICATION; TRANSCRIPCION; TRANSCRIPTION; Transcriptional Activation; Viral Proteins - genetics; VIRUS DEL PAPILOMA BOVINO
• ISSN: 0022-538X; 1098-5514
• DOI: 10.1128/jvi.70.10.7264-7269.1996

Bovine papillomavirus type 1 replication was previously shown to require both the E1 initiator protein and the E2 transactivator protein. We show here that E1, in the absence of E2, is sufficient for low level bovine papillomavirus type 1 DNA replication in C-33A cells. In addition, studies of genetically isolated E2 point mutants demonstrate that enhancement of replication by E2 does not require its transcriptional activation function. The uncoupling of the E2 functions suggests that stimulation of transcription and replication by enhancer proteins occurs via divergent mechanisms