1. Nucleotide sequence and genomic organization of a newly isolated densovirus infecting Dendrolimus punctatus
- Author
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Chuanfeng Liu, Fuming Yi, Hong Jiang, Junping Wang, Jiamin Zhang, and Yuanyang Hu
- Subjects
viruses ,Molecular Sequence Data ,Insect Viruses ,Genome, Viral ,Moths ,Viral Nonstructural Proteins ,Biology ,Genome ,Phospholipases A ,Open Reading Frames ,Virology ,Animals ,Densovirus ,ORFS ,Phylogeny ,Genomic organization ,Genetics ,DNA Helicases ,Nucleic acid sequence ,DNA virus ,biology.organism_classification ,Protein Structure, Tertiary ,DNA-Binding Proteins ,Phospholipases A2 ,Open reading frame ,Densovirinae ,Larva ,DNA, Viral ,Trans-Activators ,Nucleic Acid Conformation ,Capsid Proteins - Abstract
The nucleotide sequence of a novel icosahedral DNA virus infecting Dendrolimus punctatus has been determined. The genome is 5039 nt long and includes inverted terminal repeats of 200 nt containing 131 nt long J-shaped terminal hairpins. The ‘plus' strand of the genome contains three large open reading frames (ORFs), the left and the mid-ORFs (within the left ORF) in the left-half encoding the non-structural proteins and the right ORF in the right-half encoding viral capsid proteins. NS1 protein contains conserved replication initiation and DNA-dependent ATPase/helicase domains. VP1 protein contains a conserved PGY and phospholipase A2 motifs and shows high identities with VPs of Casphalia extranea densovirus and Bombyx mori densovirus-1 belonging to the genus Iteravirus. Phylogenetic analysis also revealed that this virus is most closely related to Casphalia extranea densovirus and Bombyx mori densovirus-1. Consequently, this virus was considered as a new third member of the genus Iteravirus of the subfamily Densovirinae, and designated Dendrolimus punctatus densovirus.
- Published
- 2005