Target Dna Amplification
Target Dna Amplification - Related Videos
09:31
Amplification, Next-generation Sequencing, and Genomic DNA Mapping of Retroviral Integration Sites
0 Views •
Cited by 56 •
2016
We describe a protocol for amplifying retroviral integration sites from the genomic DNA of infected cells, sequencing the amplified virus-host junctions, and then mapping these sequences to a reference genome. We also describe techniques to quantify the distribution of integration sites relative to various genomic annotations using BEDTools.
09:36
Visualization of Mitochondrial DNA Replication in Individual Cells by EdU Signal Amplification
0 Views •
Cited by 11 •
2010
We developed a sensitive technique to label newly synthesized mitochondrial DNA (mtDNA) in individual cells in order to study mtDNA biogenesis. The technique combines the incorporation of EdU together with a tyramide signal amplification (TSA) protocol to visualize mtDNA replication within subcellular compartments of neurons.
08:38
Targeted DNA Methylation Analysis by Next-generation Sequencing
0 Views •
Cited by 83 •
2015
Bisulfite amplicon sequencing (BSAS) is a method for quantifying cytosine methylation in targeted genomic regions of interest. This method uses bisulfite conversion paired with PCR amplification of target regions prior to next-generation sequencing to produce absolute quantitation of DNA methylation at a base-specific level.
09:44
Rapid Amplification of cDNA Ends
0 Views •
2023
Source: Pablo Sanchez Bosch2, Sean Corcoran2 and Katja Brückner1,2,3 1Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research 2Department of Cell and Tissue Biology, 3Cardiovascular Research Institute, University of California San Francisco, San Francisco, CA, USA Rapid Amplification of cDNA Ends (RACE) is a technique that allows amplification of full-length cDNA from mRNA by extending to the 3’ or 5’ end, even without prior knowledge of the sequence (Frohman et al.,...
07:05
Chromatin Immunoprecipitation to Identify Target Protein Binding Sites on Genomic DNA
0 Views •
2025
In this video, we demonstrate the chromatin immunoprecipitation technique to identify protein binding sites on specific regions of the genomic DNA of oligodendrocyte precursor cells via the selective immunoprecipitation of protein-bound chromatin fragments. This method helps to study the interaction of several regulatory proteins, including transcription factors involved in gene regulation.
FAQs
Primers provide the sequence-specific entry points that make amplification selective. Their placement defines the target region, so the resulting product represents a chosen portion of the available DNA rather than an undifferentiated sample. During each annealing step, primer binding directs DNA polymerase toward that region. This selectivity is central when pathogen-specific genetic material must be distinguished in clinical or environmental samples.
Each PCR cycle contributes a distinct molecular function: denaturation prepares the DNA, annealing positions the primers, and extension uses DNA polymerase to copy the selected region. Repeating these stages links recognition of the target to production of more template for later cycles. The coordinated sequence is important because amplification depends on completing all three steps repeatedly, not on extension alone.
Newly generated copies become available as templates, so the amount of target rises exponentially rather than by a simple fixed increment. That growth changes the practical value of a scarce sequence: it can become detectable and provide enough material for downstream work. In infection studies, this supports analysis even when the relevant pathogen-specific genetic material is initially limited.
Quantitative signal analysis adds a measurement dimension to amplification. Instead of using the amplified product only as evidence that a target can be detected, researchers can relate the signal to microbial burden. This makes the approach useful for comparing the amount of microbial genetic material across samples, provided the amplification result is interpreted together with the quantitative signal rather than as a binary finding alone.
A basic workflow starts with a clinical or environmental sample, applies primers and repeated amplification cycles to the selected DNA region, and then uses the product for detection or downstream analysis. Depending on the research question, that analysis may involve pathogen identification, sequencing, mutation detection, or quantitative signal assessment. The workflow connects selective molecular targeting with interpretable experimental outcomes.
Target DNA amplification is useful when researchers need pathogen-specific genetic evidence for diagnosis or surveillance. In immunology and infection studies, the amplified material can also support investigation of host-pathogen interactions by making relevant microbial sequences detectable for analysis. The same general strategy therefore connects sample-based detection with broader studies of infection patterns and biological relationships.
Once a target sequence has been increased sufficiently, it can be used for sequencing or mutation detection, extending the experiment from presence of genetic material to characterization of its sequence. These applications allow researchers to examine changes within detected targets rather than only determining whether pathogen-specific material is present. The amplified product therefore serves as a foundation for more detailed genetic analysis.