Results 21 to 30 of about 104,592 (252)

Specificity of retroviral RNA packaging [PDF]

open access: yesJournal of Virology, 1991
Encapsidation of retroviral RNA has been shown to be dependent on specific cis-acting signals, in particular, the packaging region (psi) located near the 5' end of the retroviral genome. In this report, we show that a 683-base avian extended packaging sequence (psi+) derived from Rous sarcoma virus will direct packaging of heterologous hygromycin mRNA ...
R, Aronoff, M, Linial
openaire   +2 more sources

Packaging signal of influenza A virus

open access: yesVirology Journal, 2021
Influenza A virus (IAV) contains a genome with eight single-stranded, negative-sense RNA segments that encode 17 proteins. During its assembly, all eight separate viral RNA (vRNA) segments are incorporated into virions in a selective manner.
Xiuli Li   +4 more
doaj   +1 more source

RNA Origami: Packaging a Segmented Genome in Orbivirus Assembly and Replication

open access: yesViruses, 2021
Understanding how viruses with multi-segmented genomes incorporate one copy of each segment into their capsids remains an intriguing question. Here, we review our recent progress and describe the advancements made in understanding the genome packaging ...
Po-Yu Sung, Polly Roy
doaj   +1 more source

Murine coronavirus packaging signal confers packaging to nonviral RNA [PDF]

open access: yesJournal of Virology, 1997
Studies of defective interfering (DI) RNAs of the murine coronavirus mouse hepatitis virus (MHV) suggest that a 69-nucleotide-long packaging signal is necessary for MHV genomic RNA packaging into MHV particles. In this study we showed that when RNA transcripts that consisted of a non-MHV sequence and the packaging signal were expressed in MHV-infected ...
K, Woo   +4 more
openaire   +2 more sources

Mechanistic insight into the efficient packaging of antigenomic S RNA into Rift Valley fever virus particles

open access: yesFrontiers in Cellular and Infection Microbiology, 2023
Rift Valley fever virus (RVFV), a bunyavirus, has a single-stranded, negative-sense tri-segmented RNA genome, consisting of L, M and S RNAs. An infectious virion carries two envelope glycoproteins, Gn and Gc, along with ribonucleoprotein complexes ...
Breanna Tercero   +8 more
doaj   +1 more source

Cooperative Mechanism of RNA Packaging Motor [PDF]

open access: yesJournal of Biological Chemistry, 2005
P4 is a hexameric ATPase that serves as the RNA packaging motor in double-stranded RNA bacteriophages from the Cystoviridae family. P4 shares sequence and structural similarities with hexameric helicases. A structure-based mechanism for mechano-chemical coupling has recently been proposed for P4 from bacteriophage phi12.
Jirí, Lísal, Roman, Tuma
openaire   +2 more sources

Cell biology of retroviral RNA packaging [PDF]

open access: yesRNA Biology, 2011
Generation of infectious retroviral particles rely on the targeting of all structural components to the correct cellular sites at the correct time. Gag, the main structural protein, orchestrates the assembly process and the mechanisms that trigger its targeting to assembly sites are well described. Gag is also responsible for the packaging of the viral
Nolwenn, Jouvenet   +3 more
openaire   +2 more sources

Packaging of Genomic RNA in Positive-Sense Single-Stranded RNA Viruses: A Complex Story

open access: yesViruses, 2019
The packaging of genomic RNA in positive-sense single-stranded RNA viruses is a key part of the viral infectious cycle, yet this step is not fully understood. Unlike double-stranded DNA and RNA viruses, this process is coupled with nucleocapsid assembly.
Mauricio Comas-Garcia
doaj   +1 more source

Development of a Novel Competitive qRT-PCR Assay to Measure Relative Lentiviral Packaging Efficiency

open access: yesMolecular Therapy: Methods & Clinical Development, 2020
Third-generation HIV-1-derived lentiviral vectors are successfully used as therapeutic agents in various clinical applications. To further promote their use, we attempted to enhance vector infectivity by targeting the dimerization and packaging ...
Eirini Vamva   +3 more
doaj   +1 more source

Transcription Start Site Heterogeneity and Preferential Packaging of Specific Full-Length RNA Species Are Conserved Features of Primate Lentiviruses

open access: yesMicrobiology Spectrum, 2022
HIV-1 must package its RNA genome to generate infectious viruses. Recent studies have revealed that during genome packaging, HIV-1 not only excludes cellular mRNAs, but also distinguishes among full-length viral RNAs. Using NL4-3 and MAL molecular clones,
Jonathan M. O. Rawson   +5 more
doaj   +1 more source

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