Binding of the E1 and E2 proteins to the origin of replication of bovine papillomavirus

Sedman, T., Sedman, J., Stenlund, A. (April 1997) Binding of the E1 and E2 proteins to the origin of replication of bovine papillomavirus. J Virol, 71 (4). pp. 2887-96. ISSN 0022-538X (Print)

URL: https://www.ncbi.nlm.nih.gov/pubmed/9060646

Abstract

DNA replication of bovine papillomavirus (BPV) requires two viral proteins encoded from the E1 and E2 open reading frames. E1 and E2 are sequence-specific DNA binding proteins that bind to their cognate binding sites in the BPV origin of replication (ori). The E1 and E2 proteins can interact physically with each other, and this interaction results in cooperative binding when binding sites for both proteins are present. We have analyzed the binding of E1 to the ori in the absence and presence of E2, using DNase I footprint analysis, gel mobility shift assays, and interference analysis. We have also generated a large number of point mutations in the E1 binding site and tested them for binding of E1 as well as for activity in DNA replication. Our results demonstrate that E1 binds to the ori in different forms in the absence and presence of E2 and that E2 has both a quantitative and a qualitative effect on the binding of E1. Our results also suggest that the ori contains multiple overlapping individual E1 recognition sequences which together constitute the E1 binding site and that different subsets of these recognition sequences are used for binding of E1 in the presence and absence of E2.

Item Type: Paper
Uncontrolled Keywords: Animals Binding Sites Cattle DNA Footprinting DNA Replication DNA Viral/biosynthesis metabolism DNA Binding Proteins genetics isolation & purification metabolism Deoxyribonuclease I metabolism Mutagenesis Papillomavirus Bovine genetics metabolism Recombinant Fusion Proteins/genetics/isolation & purification metabolism Replication Origin Viral Proteins genetics isolation & purification metabolism
Subjects: bioinformatics > genomics and proteomics > genetics & nucleic acid processing > DNA, RNA structure, function, modification > DNA replication
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein types > DNA binding protein
organism description > virus > papillomavirus
CSHL Authors:
Communities: CSHL labs > Stenlund lab
Depositing User: Brian Soldo
Date: April 1997
Date Deposited: 15 Mar 2012 15:31
Last Modified: 14 Feb 2017 20:28
PMCID: PMC191415
Related URLs:
URI: http://repository.cshl.edu/id/eprint/25194

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