title: Characterization of a new type of human papillomavirus (HPV) related to HPV5 from a case of actinic keratosis.
abstract: Human papillomavirus (HPV) DNA sequences, related to the genomes of HPVs associated with epidermodysplasia verruciformis (EV), were detected in DNA samples extracted from biopsied lesions in 2 of 24 cases of actinic keratosis found in the general population. An HPV DNA was molecularly cloned from one of these samples. Blot hybridization experiments, performed under stringent conditions, revealed a significant cross-hybridization only between this HPV DNA and the DNAs of HPV5 and of the HPV5-related types. The extent of homology between them ranged from 7 to 30%, as evaluated by hybridization in liquid phase at saturation followed by nuclease S1 analysis. This showed that the cloned HPV represented a new type, tentatively named HPV36. HPV36 was not found in the other 22 cases of actinic keratosis, but was detected in scrapings of benign lesions of 7 of 18 (39%) EV patients.
mesh_terms: D000368:Aged; D003001:Cloning, Molecular; D004279:DNA, Viral / Q000032:analysis*; D005260:Female; D005814:Genes, Viral; D006801:Humans; D007642:Keratosis / Q000382:microbiology*; D008297:Male; D008875:Middle Aged; D009693:Nucleic Acid Hybridization; D027383:Papillomaviridae / Q000235:genetics / Q000302:isolation & purification*; D012689:Sequence Homology, Nucleic Acid
chemical_list: D004279:DNA, Viral