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Maize chlorotic mottle virus (MCMV) is the only member of the Machlomovirus genus in the family Tombusviridae. Here, we obtained the Cryo-EM structure of MCMV by single particle analysis with most local resolution at approximately 4Å. The Cα backbone was built based on residues with bulky side chains. The resolved C-terminus of the capsid protein subunit and obvious openings at the 2-fold axis demonstrated...
A live chimeric vaccine virus against Japanese encephalitis (JE), ChimeriVax-JE, was used to define methods for optimal, random insertion of foreign immunologic determinants into flavivirus glycoproteins. The conserved M2e peptide of influenza A virus was randomly inserted into the yellow fever-specific NS1 glycoprotein of ChimeriVax-JE. A technique combining plaque purification with immunostaining...
Bombyx mori nucleopolyhedrovirus (BmNPV) ORF41 (Bm41), homologous to Ac52, is a gene present in most lepidopteran nucleopolyhedroviruses. Bm41 transcripts and encoded protein in BmNPV-infected cells can be detected from 3 and 6 h post-infection, respectively. Immunoassays have shown that Bm41 is not a viral structural protein and is detected in both the nuclei and cytoplasm of infected cells. A Bm41-disrupted...
Numerous viruses of the Flaviviridae family, including dengue, yellow fever, Japanese encephalitis, and West Nile, cause significant disease in humans and animals. The structure and function of the molecular components of the flavivirus envelope are therefore of significant interest. To our knowledge, a membrane (M) protein mutation which affects the pH at which flavivirus particles are inactivated...
The complete nucleotide sequence of Ectropis obliqua nucleopolyhedrovirus (EcobNPV), which infects the tea looper caterpillar, was determined and analyzed. The double stranded circular genome is composed of 131,204 bp and is 37.6% G+C rich. The analysis predicted 126 putative, minimally overlapping open reading frames (ORFs) with 150 or more nucleotides that together compose 89.8% of the genome. The...
The complete nucleotide sequence of Helicoverpa armigera single nucleocapsid nucleopolyhedrovirus isolate C1 (HearSNPV-C1) was determined and analyzed by comparing with the genome of HearSNPV-G4 isolate. C1 and G4 isolates occurred in the same host species and geographic location but showed different virulence. The HearSNPV-C1 genome consisted of 130,759 bp and 137 putative open reading frames larger...
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