title: Molecular characterization of border disease virus strain Aveyron.
abstract: For the pestivirus border disease virus (BDV) at least seven major genotypes have been described (BDV-1-BDV-7). So far, complete genomic sequences have been reported for four BDV genotypes (BDV-1-BDV-4). In this study we report the entire genomic sequence of the noncytopathogenic (ncp) BDV-5 reference strain Aveyron. The viral genome encompasses 12,284 nucleotides (nt) and contains one large open reading frame (11,700 nt) flanked by a 370 nt long 5'-untranslated region (UTR) and a 214 nt long 3'-UTR. The genome organization as well as the lengths of the viral polyprotein (3899 amino acids) and the 5'-UTR are very similar to the ones of other BDV strains, while the 3'-UTR of BDV Aveyron is considerably shorter when compared to other BDV strains. Comparative analysis of complete coding sequences revealed that BDV Aveyron shares nucleotide sequence identities of 76.9% to 79.0% with the other BDV strains, and less than 72% identity with other pestiviruses. In contrast to other BDV strains, a unique insertion of four amino acids (KAPD) of unknown origin is present in the C-terminal part of the viral autoprotease NS2 encoded by BDV Aveyron. Immunoblot analysis revealed that infection of cells with the ncp BDV strain Aveyron comprising this unique insertion in NS2 resulted in the expression of high amounts of NS3 and thereby showed that BDV Aveyron significantly differs from other ncp BDV strains in terms of NS2-3 processing and production of NS3.
authors.affiliation: University of Veterinary Medicine and Pharmacy, SK 041 81 Kosice, Slovakia.
authors.forename: Stefan
authors.initials: S
authors.lastname: Vilcek
authors.affiliation: University of Veterinary Medicine and Pharmacy, SK 041 81 Kosice, Slovakia.
authors.forename: Valeria
authors.initials: V
authors.lastname: Leskova
authors.affiliation: Institute of Virology, Department of Infectious Diseases, University of Veterinary Medicine, D-30559 Hannover, Germany.
authors.forename: Denise
authors.initials: D
authors.lastname: Meyer
authors.affiliation: Institute of Virology, Department of Infectious Diseases, University of Veterinary Medicine, D-30559 Hannover, Germany.
authors.forename: Alexander
authors.initials: A
authors.lastname: Postel
authors.affiliation: Institute of Virology, Department of Infectious Diseases, University of Veterinary Medicine, D-30559 Hannover, Germany. Electronic address: paul.becher@tiho-hannover.de.
authors.forename: Paul
authors.initials: P
authors.lastname: Becher
mesh_terms: D020121:5' Untranslated Regions / Q000235:genetics; D000595:Amino Acid Sequence; D000818:Animals; D018083:Border disease virus / Q000145:classification / Q000235:genetics*; D002460:Cell Line; D020869:Gene Expression Profiling; D015967:Gene Expression Regulation, Viral; D016679:Genome, Viral / Q000235:genetics*; D005838:Genotype; D008969:Molecular Sequence Data; D016366:Open Reading Frames / Q000235:genetics; D010802:Phylogeny; D016415:Sequence Alignment; D012756:Sheep; D013045:Species Specificity; D017361:Viral Nonstructural Proteins / Q000737:chemistry / Q000235:genetics
chemical_list: D020121:5' Untranslated Regions; D017361:Viral Nonstructural Proteins
keywords: Border disease virus; Genome sequence; Insertion; NS3 expression; Noncytopathogenic; Pestivirus