Helper virus
Characterization of Helper Virus-Independent Cytopathogenic Classical Swine Fever Virus Generated by an In Vivo RNA Recombination System
... of helper virus-independent cp CSFV strains together with a functional selection for shorter and better replicating genomes might rapidly lead to ...stable, helper virus-independent cp CSFV ...
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Chimeric Retroviral Helper Virus and Picornavirus IRES Sequence To Eliminate DNA Methylation for Improved Retroviral Packaging Cells
... of helper virus open reading frames and a selection marker from this mRNA ...methylated helper virus 5⬘ LTR from the ...sustained helper virus gene expression, which would ...
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Transfection of Fibroblasts by Cloned Abelson Murine Leukemia Virus DNA and Recovery of Transmissible Virus by Recombination with Helper Virus
... 271-285 0022-538X/82/010271-15$02.00/0 Transfection of Fibroblasts by Cloned Abelson Murine Leukemia Virus DNA and Recovery of Transmissible Virus by Recombination with Helper Virus Mass[r] ...
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Helper Virus-Independent Transcription and Multimerization of a Satellite RNA Associated with Cucumber Mosaic Virus
... satRNAs associated with Cucumber mosaic virus (CMV), the type member of the genus Cucumovirus, are among the earliest found and well-studied subviral pathogens (23, 38, 40). CMV satRNAs have 5=-capped, noncoding, ...
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Replication of adeno-associated virus in synchronized cells without the addition of a helper virus.
... In the present contribution, we show that in cell populations treated with hydroxyurea by using conditions under which the majority of cells are arrested in the S phase prior to infectio[r] ...
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Origin and biological properties of a new BALB/c mouse sarcoma virus.
... Analysis of individual BALB/c mouse sarcoma virus BALB-MSV nonproducer transformants for expression of helper virus-coded proteins revealed genetically stable variants that expressed two[r] ...
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Cell fusion for genetic analysis of two nonconditional Rous sarcoma virus replication mutants.
... The three cell lines i fused with helper virus-infected chicken cells and the host range of the rescued virus examined, ii tested for complementation by fusion with chicken cells exhibit[r] ...
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Myeloproliferative virus, a cloned murine sarcoma virus with spleen focus-forming properties in adult mice.
... DISCUSSION Our data on the MPVMSV virus complex show the following: i MPVMSV consists of at least two viral species, a replication-competent helper virus and a defective transforming vir[r] ...
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Immortalization of human B lymphocytes by a plasmid containing 71 kilobase pairs of Epstein-Barr virus DNA.
... the virus life cycle was induced by cotransfection with the virus trans- activating gene BZLF1 (5, ...P3HR1 virus DNA or encapsidated copies of the ...This virus stock was used to infect ...
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Analysis of the myeloproliferative sarcoma virus genome: limited changes in the prototype lead to altered target cell specificity.
... In contrast, when Friend helper virus clone 643/22F or a mixture of 643/22N and 643/ 22F is used, as in previous studies 16, then the SFFVspecific cDNA does not contain xenotropic virus-[r] ...
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Latent infection of KB cells with adeno-associated virus type 2.
... Indirect immunofluorescence of the three latently infected cell lines isolated in experiment 1 Table 1 showed no evidence of virus capsid antigen synthesis in the absence of helper virus[r] ...
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Defective Interfering RNA Hinders the Activity of a Tombusvirus-Encoded Posttranscriptional Gene Silencing Suppressor
... of virus- specific siRNAs, leading to accumulation of p19-unbound ...p19-defective virus (T19stop) infection even though the p19 silencing suppressor was present in the infected ...of virus-specific ...
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Molecular Mechanisms Involved in the Differential Expression of gag Gene Products by Clonal Isolates of a Primate Sarcoma Virus
... Recent studies have indicated that the number of helper virus proteins expressed by cells nonproductively transformed by different murine sarcoma viruses correlates with the presence of [r] ...
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Elimination of L-A double-stranded RNA virus of Saccharomyces cerevisiae by expression of gag and gag-pol from an L-A cDNA clone.
... We conclude that loss of M1 in the absence of plasmid is due to the loss of L-A and suggest that helper virus exclusion is in turn due to the interference with the viral replication cycl[r] ...
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Lux, Kerstin (2006): Visualization of the intracellular trafficking of incoming Adeno-associated virus type 2. Dissertation, LMU München: Fakultät für Chemie und Pharmazie
... In order to analyze the time course of nuclear entry of AAV in more detail, HeLa cells were infected with 100%-GFP-VP2-AAV for 2, 4, 11 and 24 h with or without adenovirus type 5 coinfection (MOI of 5), and confocal ...
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Correlation of leukemogenic potential of murine retroviruses with transcriptional tissue preference of the viral long terminal repeats.
... LTRs from clones of the murine retroviruses Moloney leukemia virus Mo-MuLV, a mink cell focusforming virus from a Mo-MuLV-induced thymoma MoMCF, Friend helper virus Fr-MuLV, and a polycy[r] ...
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RNA and protein encoded by MH2 virus: evidence for subgenomic expression of v-myc.
... Virions released from MH2P100+ cells after superinfection with helper virus contained a 7.8-kb helper virus genomic RNA detected with DNA probes from non-myc regions of the genome gag, 5[r] ...
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Adenovirus-Associated Virus Multiplication VIII. Analysis of In Vivo Transcription Induced by Complete or Partial Helper Viruses
... [For simplicity when referring to AAV systems using different helper viruses, we use the following nomenclature in which the helper virus is represented in parentheses: AAVAd refers to A[r] ...
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Tamplicon-7, a Novel T-Lymphotropic Vector Derived from Human Herpesvirus 7
... FIG. 4. The Tamplicon-7 vector system. (a) Derivation of the HHV-7 Tamplicon. The 1-kb oriLyt fragment was excised from pOrilyt (pNF1168) by digestion with SmaI and HindIII. The fragment was ligated to the HindIII and ...
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Deficiency of Viral Ribonucleic Acid-Dependent Deoxyribonucleic Acid Polymerase in Noninfectious Virus-Like Particles Released from Murine Sarcoma Virus-Transformed Hamster Cells
... Both the noninfectious virions and the sarcoma virus-transformed cells, which have no detectable replicating leukemia helper virus of either murine or hamster origin, are deficient in vi[r] ...
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