Js. Shiu et al., THE PRESENCE OF RNA SPLICING SIGNALS IN THE CDNA CONSTRUCT OF THE E2 GENE OF CLASSICAL SWINE FEVER VIRUS AFFECTED ITS EXPRESSION, Journal of virological methods, 69(1-2), 1997, pp. 223-230
Citations number
19
Categorie Soggetti
Virology,"Biochemical Research Methods","Biothechnology & Applied Migrobiology
E2 is the major neutralizing antigen for classical swine fever virus (
CSFV) infection. Previously, we have cloned and sequenced the E2 cDNA
of Taiwan strain p97 by the reverse transcription-polymerase chain rea
ction (RT-PCR) method from CSFV-infected tissue. The presence of RNA s
plicing donor and acceptor sites were found in the cDNA sequence. In t
his study, transfection of E2 cDNA into mammalian cells resulted in th
e production of a spliced RNA. Site-directed mutagenesis of the donor
and acceptor sites prevented the RNA splicing event and generated a fu
ll length transcript in COS7 cells. Although the spliced E2 transcript
has not been reported in natural infection of CSFV, this study sugges
ted that the potential splicing sites affected the E2 gene expression
when the plasmid-based E2 gene was introduced into mammalian cells. (C
) 1997 Elsevier Science B.V.