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Virology. 1994 Oct;204(1):447-52.

Canine oral papillomavirus genomic sequence: a unique 1.5-kb intervening sequence between the E2 and L2 open reading frames.

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  • 1Forschungsschwerpunkt Angewandte Tumorvirologie, Deutsches Krebsforschungszentrum, Heidelberg, Germany.


The canine oral papillomavirus (COPV) is associated with oropharyngeal papillomatosis in dogs, coyotes, and wolves. We have determined the complete nucleotide sequence of COPV, the largest of all known PV genomes (8607 bp). The genomic architecture of the COPV genome is similar to that of other PVs except for a unique and large noncoding region of 1.5 kb between the end of the early region (E2) and the beginning of the late region (L2) and a small (345 bp) upstream regulatory region between the end of L1 and the beginning of E6. Although COPV displays a primarily mucosal tropism, the COPV nucleotide sequence showed the highest overall similarity to cutaneous papillomaviruses such as HPV-1, HPV-63, CRPV (cottontail rabbit PV), FdPV (Felis domesticus PV), and MnPV (Mastomys natalensis PV).

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