Vaccinia virus gene expression is characterized by tight temporal
regulation. Viral early transcription begins within the cytoplasm upon
infection; three hours later, early genes are repressed, DNA replication
occurs and late gene expression commences. As an approach toward
understanding the mechanisms governing vaccinia late gene expression,
I have undertaken an...
Replication of vaccinia virus in the cytoplasm of the
infected cell occurs under the direction of virally encoded gene
products. Expression of approximately 200 viral genes follows a
highly regulated temporal scheme which can be followed
biochemically and morphologically during the assembly process.
In order to dissect this complex genetic...
Several laboratories have shown that the VV
replication cycle is dependent on the host cell nucleus.
The basic biological observation is that if the host cell
nucleus is physically removed by cytochalasin B-mediated
enucleation, functionally inactivated by UV-irradiation, or
selectively blocked with a-amanitin, the results are the
same: W is...
The prototypal poxvirus vaccinia is a cytoplasmic-replicating DNA
virus which contains a large genome with the capacity to encode 200
polypeptides. Tight temporal regulation coordinates the expression of
this large number of genes throughout a relatively short replication
cycle. As a first step towards identifying and understanding the
regulatory mechanisms...
L1R, a myristylated late gene product of vaccinia virus, is essential for formation of infectious intracellular mature virions (IMV). In its absence, only viral particles arrested at an immature stage are detected and no infectious progeny virus are produced. Previous studies have shown that the L1R protein is exclusively associated...
Vaccinia virus (VV) is a large double-stranded DNA virus that is a prototypic member of the orthopoxvirus family. Previous works has showed that three of the major structural proteins found within the mature VV virion core 4a, 4b, and 25K are produced from higher molecular weight precursors at late times...
Vaccinia virus (VV) is a large DNA virus belonging to the Orthopoxvirus
family. The viral replicative life cycle takes place solely within the cytoplasm
of a mammalian host cell. The VV genome contains 196 open reading frames
which are expressed in a highly regulated and temporal fashion in order to...