Double Stranded Rna
Double Stranded Rna - Related Videos
13:46
Separation of Single-stranded DNA, Double-stranded DNA and RNA from an Environmental Viral Community Using Hydroxyapatite Chromatography
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Cited by 5 •
2011
We describe an efficient method to separate single-stranded DNA, double-stranded DNA and RNA molecules from environmental viral communities. Nucleic acids are fractionated using hydroxyapatite chromatography with increasing concentrations of phosphate-containing buffers. This method permits the isolation of all viral nucleic acid types from environmental samples.
02:04
Fixing Double-strand Breaks
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2020
The double-stranded structure of DNA has two major advantages. First, it serves as a safe repository of genetic information where one strand serves as the back-up in case the other strand is damaged. Second, the double-helical structure can be wrapped around proteins called histones to form nucleosomes, which can then be tightly wound to form chromosomes. This way, DNA chains up to 2 inches long can be contained within microscopic structures in a cell. A double-stranded break not only damages...
04:42
Visualization of Viral Double-Stranded RNA and Host Pattern Recognition Receptors in Infected Epithelial Cells
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2026
Source: Mateer, E., et al., Confocal Imaging of Double-Stranded RNA and Pattern Recognition Receptors in Negative-Sense RNA Virus Infection. J. Vis. Exp. (2019)This video demonstrates the confocal imaging of viral double-stranded RNA (dsRNA) and cytoplasmic pattern recognition receptors (PRRs) in virus-infected epithelial cells. It highlights how antibody-based fluorescent labeling reveals the interaction between viral replication intermediates and host immune sensors.
09:04
Sequence-specific and Selective Recognition of Double-stranded RNAs over Single-stranded RNAs by Chemically Modified Peptide Nucleic Acids
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Cited by 12 •
2017
We report the protocols for the synthesis and purification of Peptide Nucleic Acid (PNA) oligomers incorporating modified residues. The biochemical and biophysical methods for the characterization of the recognition of RNA duplexes by the modified PNAs are described.
08:26
Practical Use of RNA Interference: Oral Delivery of Double-stranded RNA in Liposome Carriers for Cockroaches
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Cited by 25 •
2018
This manuscript demonstrates the depletion of gene expression in the midgut of the German cockroach through oral ingestion of double-stranded RNA encapsulated in liposomes.
FAQs
Two main routes produce the paired structure. An RNA transcript can fold back on itself when complementary regions align, creating a double-stranded segment. Alternatively, some viruses use RNA as genetic material, generating double-stranded patterns during their biology. These distinct origins help researchers compare cellular RNA regulation with virus-associated processes.
Cells recognize these patterns because cellular proteins can detect the paired RNA structure as a signal. Recognition may activate innate immune pathways, which contribute to cellular defense, or initiate processing into small interfering RNAs. The outcome depends on how the cell responds to the detected RNA and determines whether defense or gene-silencing mechanisms become central.
During RNA interference, cells may process double-stranded RNA into small interfering RNAs. These short products retain sequence information from the original molecule and guide silencing of genes with matching sequences. This sequence-matching principle allows researchers to connect a particular RNA input with targeted gene regulation rather than with broad, nonspecific changes.
Both viral RNA and folded cellular transcripts can create paired regions recognized by cellular proteins, but their biological contexts differ. Viral dsRNA patterns are relevant to host–virus interactions and cellular defense, whereas folded transcript regions can participate in gene regulation. Comparing them helps distinguish responses associated with infection from mechanisms operating within normal RNA biology.
Researchers use double-stranded RNA as an entry point for examining how cells generate small interfering RNAs and how those products guide silencing of matching genes. Experiments can therefore connect RNA structure, processing, and sequence-specific regulation. The resulting observations help clarify the mechanism of RNA interference and support studies of targeted gene control.
Studies can examine how virus-associated RNA patterns are detected by cellular proteins and whether that recognition activates innate immune pathways. This approach links a viral feature with a host defense response, helping researchers investigate the biological exchange between infection and cellular protection. The same context also supports exploration of antiviral strategies.
Double-stranded RNA is relevant because its recognition can activate innate immune pathways involved in cellular defense, while its presence also provides a way to study virus-associated processes. Researchers can use these relationships to investigate how antiviral responses operate and to identify strategies informed by the interaction between viral RNA patterns and host cells.
Its ability to generate small interfering RNAs makes double-stranded RNA useful for designing and studying sequence-directed gene regulation. When the resulting guides match a gene, they can direct silencing of that target. This application allows researchers to examine how RNA sequence information controls gene activity and to explore methods for targeted regulation.