Categorizing some early and late transcripts directed by the Autographa californica nuclear polyhedrosis virus
نویسندگان
چکیده
منابع مشابه
Identifying the RNA polymerases that synthesize specific transcripts of the Autographa californica nuclear polyhedrosis virus.
Nuclear run-on assays carried out in the presence and absence of the RNA polymerase II inhibitor, alpha-amanitin, were used to determine the exact timing of the switch from inhibitor-sensitive transcription catalysed by host RNA polymerase II, to inhibitor-resistant transcription catalysed by the baculovirus-induced RNA polymerase. These studies revealed that the onset of alpha-amanitin-resista...
متن کاملTime Course Analysis and Mapping of Autographa californica Nuclear Polyhedrosis Virus Transcripts.
To study the expression of the Autographa californica nuclear polyhedrosis virus (AcNPV) genome, intracellular virus-specific proteins and mRNAs were pulsed-labeled, extracted, and analyzed at 6-h intervals during the replicative cycle. Most RNAs were detected between 12 and 24 h postinfection (p.i.), but many continued to be synthesized until late in infection. Polyhedrin and p8 mRNAs were the...
متن کاملCharacterization of an early gene accelerating expression of late genes of the baculovirus Autographa californica nuclear polyhedrosis virus.
The region of the Autographa californica nuclear polyhedrosis virus (AcMNPV) encompassing the EcoRI T fragment (29.0 to 30.1 map units) was characterized by DNA sequencing, transcriptional mapping, and site-directed mutagenesis. The largest transcript from this region, an early 1.7-kilobase (kb) poly(A)+ RNA, encompassed three tandem, nonoverlapping open reading frames (ORFs). The largest of th...
متن کاملA baculovirus vector derived from immediately early gene promoter of Autographa californica nuclear polyhedrosis virus.
A transfer vector was constructed in which the neomycin resistance (neo) gene was under the control of a copy of Autographa californica nuclear polyhedrosis virus (AcMNPV) IE1 gene promoter at the p10 locus. After cotransfection of Spodoptera frugiperda (Sf9) cells with the transfer vector and infectious AcMNPV DNA, the recombinant virus-containing neo gene was selected by serial passage of the...
متن کاملImproving promiscuous mammalian cell entry by the baculovirus Autographa californica multiple nuclear polyhedrosis virus
The insect baculovirus AcMNPV (Autographa californica multiple nuclear polyhedrosis virus) enters many mammalian cell lines, prompting its application as a general eukaryotic gene delivery agent, but the basis of entry is poorly understood. For adherent mammalian cells, we show that entry is favoured by low pH and by increasing the available cell-surface area through a transient release from th...
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ژورنال
عنوان ژورنال: Journal of General Virology
سال: 1990
ISSN: 0022-1317,1465-2099
DOI: 10.1099/0022-1317-71-9-2195