title: Identification and characterization of odv-e25 of Spodoptera litura multicapsid nucleopolyhedrovirus.
abstract: Spodoptera litura multicapsid nucleopolyhedrovirus (SpltMNPV) odv-e25 is 684 bp long, potentially encoding 227 amino acids with a predicted molecular weight of 24.9 kDa. Homology analysis indicated that SpltMNPV ODV-E25 has 35-65% amino acid identity with that of other known baculoviruses. RT-PCR results revealed that the odv-e25 is transcribed actively at the late stage of infection and the mRNA start site was mapped within a consensus baculovirus late promoter sequence (TTAAG). Western blot analysis of odv-e25 expression with an antiserum made against 6 x His tagged ODV-E25 expressed in Escherichia coli indicated that it was present as a doublet of approximately 27 kDa from 24 h through 96 h in SpltMNPV-infected Spli-221 cells. Similar results were seen on Western blots of Spodoptera exigua (Se)MNPV-infected Se301 cells. Immunofluorescence analysis showed that ODV-E25 was predominantly present in the cytoplasm of SpltMNPV-infected cells and localized to the envelopes of occlusion-derived virus.
authors.affiliation: State Key Laboratory for Biocontrol and Institute of Entomology, Zhongshan University, 510275, Guangzhou, P.R. China.
authors.forename: Zhaofei
authors.initials: Z
authors.lastname: Li
authors.forename: Lijin
authors.initials: L
authors.lastname: Pan
authors.forename: Hang
authors.initials: H
authors.lastname: Yu
authors.forename: Sainan
authors.initials: S
authors.lastname: Li
authors.forename: Guoping
authors.initials: G
authors.lastname: Zhang
authors.forename: Yi
authors.initials: Y
authors.lastname: Pang
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002874:Chromosome Mapping; D004279:DNA, Viral / Q000235:genetics; D005814:Genes, Viral; D008969:Molecular Sequence Data; D017924:Nucleopolyhedroviruses / Q000235:genetics* / Q000378:metabolism; D020133:Reverse Transcriptase Polymerase Chain Reaction; D017386:Sequence Homology, Amino Acid; D018411:Spodoptera / Q000821:virology; D014759:Viral Envelope Proteins / Q000235:genetics* / Q000378:metabolism
chemical_list: D004279:DNA, Viral; D014759:Viral Envelope Proteins