title: Sequence analysis of the Xestia c-nigrum granulovirus genome.
abstract: The nucleotide sequence of the Xestia c-nigrum granulovirus (XcGV) genome was determined and found to comprise 178,733 bases with a G+C content of 40.7%. It contained 181 putative genes of 150 nucleotides or greater that showed minimal overlap. Eighty-four of these putative genes, which collectively accounted for 43% of the genome, are homologs of genes previously identified in the Autographa californica multinucleocapsid nucleopolyhedrovirus (AcMNPV) genome. These homologs showed on average 33% amino acid sequence identity to those from AcMNPV. Several genes reported to have major roles in AcMNPV biology including ie-2, gp64, and egt were not found in the XcGV genome. However, open reading frames with homology to DNA ligase, two DNA helicases (one similar to a yeast mitochondrial helicase and the other to a putative AcMNPV helicase), and four enhancins (virus enhancing factors) were found. In addition, several ORFs are repeated; there are 7 genes related to AcMNPV orf2, 4 genes related to AcMNPV orf145/150, and a number of repeated genes unique to XcGV. Eight major repeated sequences (XcGV hrs) that are similar to sequences found in the Trichoplusia ni GV genome (TnGV) were found.
authors.affiliation: Department of Entomology, University of California, Davis, One Shields Avenue, Davis, California, 95616, USA.
authors.forename: T
authors.initials: T
authors.lastname: Hayakawa
authors.forename: R
authors.initials: R
authors.lastname: Ko
authors.forename: K
authors.initials: K
authors.lastname: Okano
authors.forename: S I
authors.initials: SI
authors.lastname: Seong
authors.forename: C
authors.initials: C
authors.lastname: Goto
authors.forename: S
authors.initials: S
authors.lastname: Maeda
mesh_terms: D000595:Amino Acid Sequence; D016367:Baculoviridae / Q000737:chemistry / Q000201:enzymology / Q000235:genetics*; D001483:Base Sequence; D020131:Genes, Duplicate / Q000235:genetics; D005814:Genes, Viral / Q000235:genetics*; D016679:Genome, Viral; D008969:Molecular Sequence Data; D017924:Nucleopolyhedroviruses / Q000737:chemistry / Q000201:enzymology / Q000235:genetics; D016366:Open Reading Frames / Q000235:genetics; D011401:Promoter Regions, Genetic / Q000235:genetics; D012091:Repetitive Sequences, Nucleic Acid / Q000235:genetics; D016415:Sequence Alignment; D017422:Sequence Analysis, DNA; D017386:Sequence Homology, Amino Acid; D014764:Viral Proteins / Q000737:chemistry / Q000235:genetics
chemical_list: D014764:Viral Proteins