Rna-dna Hybrids
Rna-dna Hybrids - Related Videos
16:42
Generation of RNA/DNA Hybrids in Genomic DNA by Transformation using RNA-containing Oligonucleotides
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Cited by 4 •
2010
This work shows how to form an RNA/DNA hybrid at the chromosomal level and reveal transfer of genetic information from RNA to genomic DNA in yeast cells.
03:26
Probe Hybridization and Signal Amplification in RNA In Situ Hybridization: A Technique for Detecting Specific RNA Sequences in Tissue Sections
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2023
This video describes a sequential hybridization strategy that involves hybridizing mRNA probes to specific target mRNA. Following probe hybridization, signal amplification is performed to enhance resolution via reduction of signal-to-noise ratio during RNA-CISH of histological samples.
09:57
Whole Mount RNA Fluorescent in situ Hybridization of Drosophila Embryos
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Cited by 22 •
2013
Here we describe a whole-mount fluorescent in situ hybridization (FISH) protocol for determining the expression and localization properties of RNAs expressed during embryogenesis in the fruit fly, Drosophila melanogaster.
15:54
Combined DNA-RNA Fluorescent In situ Hybridization (FISH) to Study X Chromosome Inactivation in Differentiated Female Mouse Embryonic Stem Cells
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Cited by 14 •
2014
Fluorescent in situ hybridization (FISH) allows the detection of nucleic acids in their native environment within cells. We here describe a protocol for the combined, simultaneous detection of RNA and DNA by means of FISH, which can be used to study X chromosome inactivation in mouse embryonic stem cells.
10:16
Detection of Viral RNA by Fluorescence in situ Hybridization (FISH)
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Cited by 35 •
2012
A fluorescence in situ hybridization (FISH) method was developed to visually detect viral genomic RNA using fluorescence microscopy. A probe is made with specificity to the viral RNA that can then be identified using a combination of hybridization and immunofluorescence techniques. This technique offers the advantage of identifying the localization of the viral RNA or DNA at steady-state, providing information on the control of intracellular virus trafficking events.
FAQs
During transcription, the newly produced RNA can anneal to a complementary DNA template. This pairing may leave the other DNA strand displaced and single stranded, producing an R-loop. Because this configuration differs from ordinary double-stranded DNA, it provides a structural context for examining how transcription can affect replication and chromosome stability.
RNase H provides a mechanism for removing the RNA component of an RNA-DNA hybrid. In the context of an R-loop, that activity can help resolve the three-stranded structure and restore a less persistent nucleic-acid configuration. Studying this activity helps geneticists connect hybrid processing with genome maintenance and chromosome stability.
When RNA-DNA hybrids form during transcription, they can become relevant to conflicts between transcription and replication. These conflicts provide a genetic framework for investigating how simultaneous RNA production and DNA copying relate to DNA damage and genome instability. Consequently, hybrid structures are studied as features connected to chromosome maintenance, not only as products of transcription.
Hybrid mapping and detection methods are used to locate or identify RNA-DNA hybrid structures in genetic material. The source links these approaches to studies of gene expression, repair pathways, and disease-associated mutations. Their value is interpretive: they connect hybrid presence or distribution with molecular processes that influence transcription, genome repair, and genetic stability.
Researchers would examine these structures when asking how transcription affects genome replication or chromosome stability. In genetics, the approach is especially relevant to transcription-replication conflicts, DNA damage, and genome instability. It can help frame experiments that connect RNA production with changes in DNA maintenance rather than treating transcription and replication as entirely separate processes.
Studying RNA-DNA hybrids can provide context for interpreting disease-associated mutations. Hybrid mapping and detection methods support investigation of their relationship to altered gene expression or repair pathways, while RNase H supplies a mechanistic route for considering their resolution. Together, these perspectives link a nucleic-acid structure to broader questions about mutation, repair, and chromosome stability.