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Virology. 1989 Jul;171(1):306-11.

Nucleotide sequence of human papillomavirus type 31: a cervical neoplasia-associated virus.

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Division of Molecular Diagnostics Research, Life Technologies, Inc., Gaithersburg, Maryland 20877.


The nucleotide sequence of human papillomavirus (HPV) 31 DNA (7912 bp) was determined and used to deduce the genomic organization of this cervical cancer-associated virus. Based on comparisons of the HPV 31 DNA sequence to other sequenced HPVs, HPV 31 is a typical papillomavirus most related to HPV 16 (70% identical nucleotides). The E6 and E7 open reading frames (ORF) of HPV 31 contain several potential DNA binding motifs (Cys-X-X-Cys), the locations of which are conserved in all HPVs. The E6 ORF also has the potential to code for an E6* protein. The E7 ORF of HPV31 encodes a polypeptide motif which appears to distinguish HPVs associated with cervical cancer, such as types 16, 18, 31, and 33, from HPVs found primarily in benign lesions, such as types 6 and 11.

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