Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Non-LTR Retrotransposons03:18

Non-LTR Retrotransposons

11.5K
As the name suggests, non-LTR retrotransposons lack the long terminal repeats characteristic of the LTR retrotransposons. Additionally, both LTR and non-LTR retrotransposons use distinct mechanisms of mobilization. Non-LTR retrotransposons are further divided into two classes - Long interspersed nuclear elements (LINEs) and short interspersed nuclear elements (SINEs), both of which occur abundantly in most mammals, including humans. Some of the active non-LTR retrotransposons in humans are L1...
11.5K
LTR Retrotransposons03:08

LTR Retrotransposons

17.5K
LTR retrotransposons are class I transposable elements with long terminal repeats flanking an internal coding region. These elements are less abundant in mammals compared to other class I transposable elements. About 8 percent of human genomic DNA comprises LTR retrotransposons. Some of the common examples of LTR retrotransposons are Ty elements in yeast and Copia elements in Drosophila.
The internal coding region of LTR retrotransposons and their mechanism of transposition closely resembles a...
17.5K
Conservative Site-specific Recombination and Phase Variation02:53

Conservative Site-specific Recombination and Phase Variation

6.0K
Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
6.0K
Retroviruses02:33

Retroviruses

12.3K
Retroviruses and retrotransposons both insert copies of their genetic elements into the genome of the host cell. Thus, the viral genes are passed on when the host genome is replicated or translated. A typical retroviral DNA sequence contains 3-4 genes that encode the different proteins required for its structural assembly and function as a molecular parasite. This DNA is transcribed into a single mRNA, which is very similar in structure to conventional mRNAs, i.e., it is capped at the 5’...
12.3K
Overview of Transposition and Recombination02:13

Overview of Transposition and Recombination

15.6K
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...
15.6K
DNA-only Transposons02:57

DNA-only Transposons

14.5K
DNA-only transposons are called autonomous transposons since they code for the enzyme transposase that is required for the transposition mechanism. Insertion of transposons can alter gene functions in multiple ways. They can mutate the gene, alter gene expression by introducing a novel promoter or insulator sequence, introduce new splice sites, and change the mRNA transcripts produced, or remodel chromatin structure.
The donor site from where the transposon is excised is either degraded or...
14.5K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Structural basis of RNA-guided DNA integration by type I CRISPR-associated transposases.

bioRxiv : the preprint server for biology·2026
Same author

Temperate phages enhance bacterial host fitness via RNA-guided flagellar remodelling.

Nature microbiology·2026
Same author

Flying under the radar: immune-evasive DNA for genome engineering.

Cell research·2026
Same author

Transposon end recognition and excision mechanisms of type I-F CRISPR-associated transposases.

bioRxiv : the preprint server for biology·2026
Same author

Coordinated synthesis of double-stranded DNA by a dual reverse transcriptase immune system.

bioRxiv : the preprint server for biology·2026
Same author

'Insane in the membrane': 2',3'-cGAMP triggers filamentous phage defense.

Cell host & microbe·2026
Same journal

Erratum for the Research Article "Detecting supramolecular organic nanoparticles during heat wave".

Science (New York, N.Y.)·2026
Same journal

Local signals, systemic decline.

Science (New York, N.Y.)·2026
Same journal

The mechanics of liver regeneration.

Science (New York, N.Y.)·2026
Same journal

Computing in a memory with physics.

Science (New York, N.Y.)·2026
Same journal

Retraction.

Science (New York, N.Y.)·2026
Same journal

Making time.

Science (New York, N.Y.)·2026
See all related articles

Related Experiment Video

Updated: Jul 12, 2025

Enhanced Genome Editing with Cas9 Ribonucleoprotein in Diverse Cells and Organisms
09:51

Enhanced Genome Editing with Cas9 Ribonucleoprotein in Diverse Cells and Organisms

Published on: May 25, 2018

34.0K

Genome editing with retroelements.

Stephen Tang1, Samuel H Sternberg1

  • 1Department of Biochemistry and Molecular Biophysics, Columbia University, New York, NY, USA.

Science (New York, N.Y.)
|October 26, 2023
PubMed
Summary
This summary is machine-generated.

RNA-guided DNA writing enzymes show potential for precise gene insertion. These novel tools could revolutionize genetic engineering and therapeutic applications.

More Related Videos

CRISPR/Cas9 Editing of the C. elegans rbm-3.2 Gene using the dpy-10 Co-CRISPR Screening Marker and Assembled Ribonucleoprotein Complexes.
07:46

CRISPR/Cas9 Editing of the C. elegans rbm-3.2 Gene using the dpy-10 Co-CRISPR Screening Marker and Assembled Ribonucleoprotein Complexes.

Published on: December 11, 2020

5.9K
Structure-function Studies in Mouse Embryonic Stem Cells Using Recombinase-mediated Cassette Exchange
15:13

Structure-function Studies in Mouse Embryonic Stem Cells Using Recombinase-mediated Cassette Exchange

Published on: April 27, 2017

11.0K

Related Experiment Videos

Last Updated: Jul 12, 2025

Enhanced Genome Editing with Cas9 Ribonucleoprotein in Diverse Cells and Organisms
09:51

Enhanced Genome Editing with Cas9 Ribonucleoprotein in Diverse Cells and Organisms

Published on: May 25, 2018

34.0K
CRISPR/Cas9 Editing of the C. elegans rbm-3.2 Gene using the dpy-10 Co-CRISPR Screening Marker and Assembled Ribonucleoprotein Complexes.
07:46

CRISPR/Cas9 Editing of the C. elegans rbm-3.2 Gene using the dpy-10 Co-CRISPR Screening Marker and Assembled Ribonucleoprotein Complexes.

Published on: December 11, 2020

5.9K
Structure-function Studies in Mouse Embryonic Stem Cells Using Recombinase-mediated Cassette Exchange
15:13

Structure-function Studies in Mouse Embryonic Stem Cells Using Recombinase-mediated Cassette Exchange

Published on: April 27, 2017

11.0K

Area of Science:

  • Molecular Biology
  • Genetic Engineering
  • Biotechnology

Background:

  • Gene insertion is crucial for genetic modification and therapies.
  • Existing methods for gene insertion face limitations in precision and efficiency.

Purpose of the Study:

  • To explore the potential of RNA-guided DNA writing enzymes for programmable gene insertion.
  • To evaluate the efficiency and specificity of these enzymes in genetic engineering applications.

Main Methods:

  • Utilizing RNA-guided DNA writing enzymes for targeted DNA modification.
  • Assessing gene insertion efficiency and specificity through molecular assays.

Main Results:

  • Demonstrated successful and programmable gene insertion using RNA-guided enzymes.
  • Achieved high efficiency and specificity in targeted genetic modifications.

Conclusions:

  • RNA-guided DNA writing enzymes represent a promising advancement for precise gene insertion.
  • These enzymes offer a versatile platform for future genetic engineering and therapeutic strategies.