Vector Genome Junctions
Vector Genome Junctions - Related Videos
04:35
Cesium Chloride-Based Purification of Genome-Containing Adenoviral Vectors
0 Views •
2026
Source: Ehrke-Schulz, E., et al. Cloning and Large-Scale Production of High-Capacity Adenoviral Vectors Based on the Human Adenovirus Type 5. J. Vis. Exp. (2016)This video demonstrates the purification of high-capacity adenoviral vectors using cesium chloride gradient ultracentrifugation, enabling the separation of genome-containing virions for applications in gene delivery, vector characterization, and preclinical therapeutic...
08:31
Isolation and Genome Analysis of Single Virions using 'Single Virus Genomics'
0 Views •
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.
08:31
Genome Editing
0 Views •
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...
10:42
A Protocol for the Production of Integrase-deficient Lentiviral Vectors for CRISPR/Cas9-mediated Gene Knockout in Dividing Cells
0 Views •
Cited by 20 •
2017
We describe the production strategy of integrase-deficient lentiviral vectors (IDLVs) as vehicles for delivering CRISPR/Cas9 to cells. With an ability to mediate quick and robust gene editing in cells, IDLVs present a safer and equally effective vector platform for gene delivery compared to integrase-competent vectors.
22:27
Hi-C: A Method to Study the Three-dimensional Architecture of Genomes.
0 Views •
Cited by 517 •
2010
The Hi-C method allows unbiased, genome-wide identification of chromatin interactions (1). Hi-C couples proximity ligation and massively parallel sequencing. The resulting data can be used to study genomic architecture at multiple scales: initial results identified features such as chromosome territories, segregation of open and closed chromatin, and chromatin structure at the megabase scale.
FAQs
Different stages can produce these boundaries. During construction, engineered genetic elements are assembled within a vector genome; during replication or recombination, DNA arrangements may change; and during concatemer formation, separate vector genomes can join. Because each process can leave a distinct sequence arrangement, junction analysis helps connect an observed genome structure with its likely origin.
Their sequences provide checkpoints for whether the intended genetic elements are joined correctly and whether the vector retains an appropriate overall structure. Analysis can also expose rearrangements or unintended vector-backbone carryover. These findings matter because a preparation may contain structural features that are not apparent from examining the planned design alone.
A junction linking one vector genome to another supports the presence of concatemer formation, whereas a boundary within an engineered construct can reflect its assembly or a rearrangement. Determining the sequence across the boundary provides direct evidence of how neighboring regions are connected. This makes junction mapping useful for examining vector genome organization and structural changes.
The workflow first amplifies DNA that crosses a selected boundary, rather than examining only one adjoining region. Sequencing the amplified material then identifies the actual order and connection of the neighboring sequences. Researchers can compare that result with the intended vector design to confirm assembly, identify altered arrangements, and characterize the structure present in a vector preparation.
Researchers examine whether sequences bordering the engineered cargo correspond to the intended vector design or include backbone material that should not be present. Amplifying across the relevant junction and determining its sequence can reveal that carryover directly. This application supports structural quality assessment by showing which DNA regions are actually connected in the analyzed preparation.
It is particularly useful after vector construction and before a vector preparation is used in downstream research. The analysis verifies correct assembly and checks for rearrangements or unintended backbone sequences before those materials enter experiments. It can therefore function as a structural characterization step alongside broader investigations of vector genome composition and integrity.
Mapping these boundaries helps researchers track vector genome structure in studies of how delivered genetic material persists. When integration is applicable, junction information can also contribute to examining how vector genomes relate to integration events and their genetic consequences. The analysis therefore connects molecular structure with questions about the fate of vector DNA after delivery to cells.