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Related Concept Videos

In-vitro Mutagenesis01:16

In-vitro Mutagenesis

To learn more about the function of a gene, researchers can observe what happens when the gene is inactivated or “knocked out,” by creating genetically engineered knockout animals. Knockout mice have been particularly useful as models for human diseases such as cancer, Parkinson’s disease, and diabetes.
Conservative Site-specific Recombination and Phase Variation02:53

Conservative Site-specific Recombination and Phase Variation

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...
DNA-only Transposons02:57

DNA-only Transposons

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...

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Related Experiment Video

Updated: Jun 4, 2026

The Production of C. elegans Transgenes via Recombineering with the galK Selectable Marker
12:03

The Production of C. elegans Transgenes via Recombineering with the galK Selectable Marker

Published on: January 11, 2011

Gene Replacement and Transposon Delivery Using the Negative Selection Marker sacB.

M Jackson, L Reinaldo Camacho, B Gicquel

    Methods in Molecular Medicine
    |February 23, 2011
    PubMed
    Summary
    This summary is machine-generated.

    Gene replacement and transposon mutagenesis are crucial for genetic studies in mycobacteria. Developing these tools in Mycobacterium tuberculosis complex will accelerate the identification of virulence genes in these pathogens.

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    Area of Science:

    • Microbiology
    • Genetics
    • Molecular Biology

    Background:

    • Gene replacement and transposon mutagenesis are established genetic tools.
    • Their absence in mycobacteria, particularly Mycobacterium tuberculosis complex, limits genetic research.
    • This hinders the study of virulence factors in these significant pathogens.

    Purpose of the Study:

    • To highlight the need for gene replacement and transposon mutagenesis tools in mycobacteria.
    • To emphasize their importance in identifying and characterizing virulence genes.
    • To facilitate genetic studies in Mycobacterium tuberculosis complex.

    Main Methods:

    • Review of existing genetic methodologies.
    • Analysis of limitations in current mycobacterial genetic research.
    • Discussion of potential applications of gene replacement and transposon mutagenesis.

    Main Results:

    • Gene replacement and transposon mutagenesis are essential for comprehensive genetic analysis.
    • These tools are currently lacking in Mycobacterium tuberculosis complex.
    • Their development is critical for advancing our understanding of mycobacterial pathogenesis.

    Conclusions:

    • The development of gene replacement and transposon mutagenesis is imperative for mycobacterial research.
    • These tools will significantly enhance the study of virulence genes.
    • This advancement is crucial for combating diseases caused by Mycobacterium tuberculosis complex.