Replicative intermediates of human papillomavirus type 11 in laryngeal papillomas: Site of replication initiation and direction of replication

K. J. Auborn, R. D. Little, T. H.K. Platt, M. A. Vaccariello, C. L. Schildkraut

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19 Scopus citations


We have examined the structures of replication intermediates from the human papillomavirus type 11 genome in DNA extracted from papilloma lesions (laryngeal papillomas). The sites of replication initiation and termination utilized in vivo were mapped by using neutral/neutral and neutral/alkaline two-dimensional agarose gel electrophoresis methods. Initiation of replication was detected in or very close to the upstream regulatory region (URR; the noncoding, regulatory sequences upstream of the open reading frames in the papillomavirus genome). We also show that replication forks proceed bidirectionally from the origin and converge 180° opposite the URR. These results demonstrate the feasibility of analysis of replication of viral genomes directly from infected tissue.

Original languageEnglish (US)
Pages (from-to)7340-7344
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Issue number15
StatePublished - Jul 19 1994


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