Tn5 Transposition
Tn5 Transposition - Related Videos
02:13
Overview of Transposition and Recombination
0 Views •
2020
Transposons make up a significant part of genomes of various organisms. Therefore, it is believed that transposition played a major evolutionary role in speciation by changing genome sizes and modifying gene expression patterns. For example, in bacteria, transposition can lead to conferring antibiotic resistance. Movement of transposable elements within the genetic pool of pathogenic bacteria can aid in transfer of antibiotic-resistant genetic elements. In eukaryotes, transposons can carry out...
04:42
Generating a Rat Model of Tibial Neuroma Transposition
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2025
Source: Brakkee, E. M., et al. Surgery and Behavioral Testing in the Tibial Neuroma Transposition Model in Rats. J. Vis. Exp. (2023).This video demonstrates a procedure to generate a rat tibial neuroma transposition (TNT) model. After exposing the tibial nerve in the hind leg of an anesthetized rat, transect the nerve. Next, create a subcutaneous tunnel, thread the severed nerve through the tunnel, and suture it in place. In the absence of a target for reinnervation, disorganized axonal...
05:11
Glioblastoma Induction Using SB Mediated Transposition: A Technique for Generating Novel Mouse Model Using Transposon Mediated Integration of SB Plasmid into Neonatal Mouse Brain
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2025
This video describes an efficient technique to induce glioblastomas (GBM) using transposon DNA injected into the ventricles of neonatal mice. Cells of the subventricular zone, which take up the plasmid, transform, proliferate, and generate tumors with histopathological characteristics of human GBM.
07:23
Surgery and Behavioral Testing in the Tibial Neuroma Transposition Model in Rats
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Cited by 2 •
2023
This protocol describes the tibial neuroma transposition model, which entails a lesion of the tibial nerve with subsequent transposition of the proximal nerve end toward a subcutaneous pretibial or lateral position. Behavioral testing of neuroma pain and plantar hyperalgesia is quantified using Von Frey monofilaments.
11:09
RBDT: A Computerized Task System based in Transposition for the Continuous Analysis of Relational Behavior Dynamics in Humans
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Cited by 3 •
2021
RBDT integrates behavioral patterns based on discrete responses (e.g., stimuli selection, placement of figures) and continuous responses (e.g., tracking of cursor movements, figure dragging) to study relational behavior with humans. RBDT is a challenging task based on transposition, in which the participant sets up stimuli compounds with a relational criterion (more/less than).
FAQs
Mosaic end sequences provide the recognition points that guide Tn5 transposase activity. During the reaction, the enzyme acts on DNA associated with these sequences, enabling the segment to be excised and relocated. This recognition step links a chosen DNA segment to the transposition event, making the system useful for targeted DNA manipulation and genetic analysis.
Engineered Tn5 complexes extend the transposase reaction beyond DNA relocation. They can fragment DNA while adding sequencing adapters in the same process, a combination known as tagmentation. Linking these activities reduces the separation between DNA fragmentation and library preparation, supporting rapid conversion of genomic DNA into material suitable for sequencing-based genetic investigations.
Tn5 transposition describes movement of DNA segments through recognition, excision, and insertion, whereas Tn5-mediated tagmentation applies related activity to fragment DNA and add sequencing adapters. The first supports genome modification and insertional mutagenesis; the second emphasizes efficient preparation of DNA for sequencing. This distinction explains why the same transposase platform serves both experimental genetics and genomic analysis.
A Tn5-based tagmentation workflow combines DNA fragmentation with sequencing-adapter addition. Because these operations occur together, the method provides a rapid route to sequencing-library preparation rather than treating fragmentation and adapter incorporation as separate functions. The resulting libraries support genetic analyses that require broad examination of genomic DNA, including studies of genome organization and regulatory architecture.
In ATAC-seq, engineered Tn5 complexes help map accessible chromatin across the genome. Their activity couples DNA fragmentation and adapter addition, allowing accessible regions to be represented in sequencing libraries. The resulting genome-wide map helps researchers examine regulatory architecture and connect patterns of chromatin accessibility with questions about gene regulation and genome organization.
Tn5-based methods support several complementary genetics questions. Insertional mutagenesis can help investigate gene function, while ATAC-seq can reveal genome-wide patterns of accessible chromatin and regulatory architecture. Tagmentation also enables rapid sequencing-library preparation. Together, these applications let researchers study how genetic elements, regulatory regions, and broader genome organization contribute to biological systems.