Nucleotide sequence and genomic organization of a newly isolated densovirus infecting Dendrolimus punctatus

Autor: Chuanfeng Liu, Fuming Yi, Hong Jiang, Junping Wang, Jiamin Zhang, Yuanyang Hu
Rok vydání: 2005
Předmět:
Zdroj: Journal of General Virology. 86:2169-2173
ISSN: 1465-2099
0022-1317
DOI: 10.1099/vir.0.80898-0
Popis: 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.
Databáze: OpenAIRE