title: Identification and characterization of a papillomavirus from birds (Fringillidae).
abstract: From skin papillomas of the chaffinch (Fringilla coelebs), a virus has been purified and studied by physicochemical techniques and electron microscopy. The virions measure 52 nm in diameter and are composed of 72 morphological units arranged in a skew T = 7d surface lattice. A sedimentation coefficient of about 300S and a buoyant density of 1.34 g/ml in CsCl were determined for the particle. Its protein composition resembles that of human papillomavirus, and the circular double-stranded genome measures 2.6 micronm. This is the first demonstration of a member of the Papovaviridae family that affects a nonmammalian host.
mesh_terms: D000818:Animals; D001715:Bird Diseases / Q000382:microbiology*; D001717:Birds; D004279:DNA, Viral / Q000032:analysis; D006801:Humans; D010212:Papilloma / Q000382:microbiology / Q000662:veterinary*; D027383:Papillomaviridae / Q000302:isolation & purification / Q000648:ultrastructure; D010455:Peptides / Q000032:analysis; D012878:Skin Neoplasms / Q000382:microbiology / Q000662:veterinary*; D014764:Viral Proteins / Q000032:analysis; D014860:Warts / Q000382:microbiology
chemical_list: D004279:DNA, Viral; D010455:Peptides; D014764:Viral Proteins