Bombyx mori nucleopolyhedrovirus ORF94, a novel late protein is identified to be a component of ODV structural protein.
Orf94 (Bm94) of Bombyx mori nucleopolyhedrovirus (BmNPV) potentially encodes 424-amino acids with a predicted molecular weight of 49.4 kDa, but its function remains unknown. Blast search results revealed that Bm94 homologues exist in 10 completely sequenced Lepidopteron NPVs with identities ranging from 95 to 37%. Results of our recent study showed that Bm94 was transcribed from 12 to 72 h and the corresponding protein was detected from 24 to 72 h post-infection. Furthermore, Western blot analysis revealed that Bm94 was present in occlusion-derived virus (ODV) and in total protein from BmNPV-infected BmN cells, but not in budded virus. Immunofluorescence analysis revealed that the protein located primarily in the cytoplasm and was also present in the nucleus in the later infection. In conclusion, these results together indicated that Bm94 was a late gene, which distributed both in the cytoplasm and in the nucleus, and was identified to be a component of BmNPV ODV.
Institute of Life Sciences, Jiangsu University, 301# Xuefu Road, Zhenjiang 212013, China. lllgggttt11@163.com
Guiting
G
Liang
Guohui
G
Li
Keping
K
Chen
Qin
Q
Yao
Huiqing
H
Chen
Yang
Y
Zhou
D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D012831:Bombyx / Q000821:virology*; D002467:Cell Nucleus / Q000737:chemistry; D003593:Cytoplasm / Q000737:chemistry; D020869:Gene Expression Profiling; D008856:Microscopy, Fluorescence; D008969:Molecular Sequence Data; D008970:Molecular Weight; D017924:Nucleopolyhedroviruses / Q000737:chemistry / Q000235:genetics / Q000502:physiology*; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid; D014158:Transcription, Genetic; D014764:Viral Proteins / Q000737:chemistry / Q000235:genetics / Q000302:isolation & purification*; D014771:Virion / Q000737:chemistry*; D014779:Virus Replication
D014764:Viral Proteins