title: E1 protein of bovine papillomavirus 1 is not required for the maintenance of viral plasmid DNA replication.
abstract: Derivatives of bovine papillomavirus 1 (BPV1) with temperature-sensitive and dominant-negative mutation the E1 gene were used to determine the requirement for E1 in the maintenance of viral plasmid DNA replication. The abilities of these mutant BPV1 genomes to replicate as nuclear plasmids were monitored at permissive (32 degrees C) and nonpermissive (37 degrees C) temperatures in mouse C127 cells. We found that the temperature-sensitive E1 mutant BPV1 genomes replicate as nuclear plasmids as efficiently as does wild-type BPV1 in C127 cells after shifting to the nonpermissive temperature. These findings indicate that BPV1 does not require E1 for the maintenance of viral plasmids.
authors.affiliation: McArdle Laboratory for Cancer Research, University of Wisconsin Medical School, Madison, Wisconsin 53706, USA.
authors.forename: Kitai
authors.initials: K
authors.lastname: Kim
authors.forename: Paul F
authors.initials: PF
authors.lastname: Lambert
mesh_terms: D000818:Animals; D052688:Bovine papillomavirus 1 / Q000235:genetics / Q000502:physiology*; D002478:Cells, Cultured; D004261:DNA Replication; D004268:DNA-Binding Proteins / Q000502:physiology*; D051379:Mice; D010957:Plasmids; D014162:Transfection; D014764:Viral Proteins / Q000502:physiology*; D014779:Virus Replication
chemical_list: D004268:DNA-Binding Proteins; C069814:E1 protein, Bovine papillomavirus; D014764:Viral Proteins