Genomic Region Isolation
Genomic Region Isolation - Related Videos
09:26
Isolation of Specific Genomic Regions and Identification of Associated Molecules by enChIP
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Cited by 4 •
2016
The identification of molecules associated with specific genomic regions of interest is required to understand the mechanisms of regulation of the functions of these regions. This protocol describes procedures to perform engineered DNA-binding molecule-mediated chromatin imunoprecipitation (enChIP) for identification of proteins and RNAs associated with a specific genomic region.
08:31
Isolation and Genome Analysis of Single Virions using 'Single Virus Genomics'
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Cited by 2 •
2013
Single Virus Genomics (SVG) is a method to isolate and amplify the genomes of single virons. Viral suspensions of a mixed assemblage are sorted using flow cytometry onto a microscope slide with discrete wells containing agarose, thereby capturing the virion and reducing genome shearing during downstream processing. Whole genome amplification is achieved using multiple displacement amplification (MDA) resulting in genomic material that is suitable for sequencing.
07:26
Isolation of Genomic DNA from Mouse Tails
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Cited by 23 •
2007
06:40
G2-seq: A High Throughput Sequencing-based Technique for Identifying Late Replicating Regions of the Genome
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2018
We describe a technique for combining flow cytometry and high throughput sequencing to identify late replicating regions of the genome.
08:31
Genome Editing
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2023
A well-established technique for modifying specific sequences in the genome is gene targeting by homologous recombination, but this method can be laborious and only works in certain organisms. Recent advances have led to the development of “genome editing”, which works by inducing double-strand breaks in DNA using engineered nuclease enzymes guided to target genomic sites by either proteins or RNAs that recognize specific sequences. When a cell attempts to repair this damage, mutations can be...
FAQs
Selectivity comes from recognizing sequence features unique to the genomic region of interest. Complementary probes can bind matching DNA, targeted amplification can increase representation of a chosen segment, and restriction enzymes can identify fragments according to their sequence-dependent cleavage patterns. These strategies reduce the relative contribution of unrelated genomic material, making subsequent analysis more focused.
These approaches enrich the same general target through different recognition mechanisms. Complementary probes identify matching sequences, targeted amplification produces additional copies of the selected segment, and restriction enzymes generate or identify fragments based on sequence-specific cleavage. The appropriate choice depends on how the region can be recognized and which downstream analysis requires the isolated material.
Enrichment alone does not necessarily remove every unrelated genomic fragment. Purification separates the region of interest from remaining DNA so that later measurements more directly reflect the selected sequence. This improves the usefulness of isolated material for sequencing and molecular assays, particularly when researchers need to evaluate sequence variation, mutations, regulatory elements, or gene organization.
A typical workflow begins by selecting the genomic segment and choosing a sequence-recognition strategy, such as a complementary probe, targeted amplification, or restriction-enzyme approach. The selected material is then enriched and purified from other genomic fragments. Finally, researchers examine the isolated region with sequencing or molecular assays suited to the biological question.
Analysis of the purified segment can reveal sequence variation, mutations, regulatory elements, and aspects of gene organization. Sequencing provides information about the DNA sequence itself, while molecular assays can support targeted examination of specific features. Because unrelated genomic material has been reduced, these measurements can be interpreted in relation to a defined region rather than the genome as a whole.
Researchers apply this approach when a defined genomic segment must be examined in detail or used in a targeted experiment. Supported applications include studying genome structure and function, investigating disease-associated variants, comparing evolutionary relationships, and validating targeted genetic experiments. Its value comes from connecting a focused DNA region with a specific biological or experimental question.