The two segments of double-stranded RNA (dsRNA) from
infectious pancreatic necrosis virus (IPNV) were cloned
into plasmid vector pUC8. Two distinct sets of overlapping
clones were identified by restriction enzyme and Southern
blot analysis. Each of these sets was shown, by Northern
blot analysis, to be exclusively related to either...
Bovine viral diarrhea virus (BVDV) is an enveloped, single-stranded positive-sense RNA virus. The BVDV genome is about 12.5 kb long and consists of a single open reading frame (ORF) flanked by untranslated regions at the 5' and 3' ends (5'-UTR and 3'- UTR, respectively). To investigate the role of cis-sequences...
Beet yellows virus (BYV) is a filamentous, positive-strand RNA virus that belongs to the family Closteroviridae. BYV particles encapsidate a 15.5 kb RNA and posses complex polar architecture. A long virion body is formed by the major capsid protein(CP), whereas the minor capsid protein (CPm) assembles a short tail that...
Turnip yellow mosaic virus is a monopartite, plus sense RNA virus
infecting the Cruciferae, and is a model system for the study of RNA virus
replication. A cDNA clone (pTYMC) representing an infectious RNA
genome of the European isolate of TYMV was constructed and used to assess
the importance of...
RNA isolated from BAI strain A (Myeloblastosis) Avian Tumor
Virus can be fractionated into two fractions on a sucrose density
gradient, one of higher molecular weight and one of low molecular
weight. The low molecular weight (LMW) virus RNA was found to
chromatograph the same as E. coli tRNA on...
The transcription process of infectious hematopoietic necrosis virus (IHNV), a rhabdovirus of salmonid fish, was studied both in vivo and in vitro. Polyadenylated RNA from IHNV infected-salmon cells was resolved electrophoretically into five bands, one of which was found to contain two mRNA species. The molecular weights and intracellular molar...
The A segment of infectious pancreatic necrosis virus (IPNV)
is expressed as a polyprotein encoding three primary gene
products, VP2, NS and VP3, from a large open reading frame. The
nucleotide sequence for the A segment of the Sp isolate of IPNV
was determined. The NS protein is the putative...
Replication of plasmid molecules containing a single
adenovirus terminal sequence and specially arranged
inverted repeat sequences were studied. When the plasmids
were linearized to expose the adenovirus terminal sequence
and transfected into 293 cells with helper adenovirus DNA,
a larger molecule was detected. The new molecule
contained adenovirus terminal sequences...
The Baculoviridae comprise a diverse group of occluded DNA viruses that contain large double-stranded DNA genomes of 80 - 180 kb and may encode up to 180 gene products. To understand how baculoviruses replicate and process their genomes and the gene products that are involved in these events, a series...