Binary Transcription System
Binary Transcription System - Related Videos
02:05
Establishing a Binary Culture of Saccharibacteria with Host Bacteria
0 Views •
2025
Source: Collins, A. J., et al., Establishing Stable Binary Cultures of Symbiotic Saccharibacteria from the Oral Cavity. J. Vis. Exp. (2021)This video demonstrates the establishment and maintenance of a binary culture of Saccharibacteria and its host bacterium by sequentially co-incubating them in host-specific growth medium.
01:26
Binary Fission
0 Views •
2025
Binary fission is the primary mode of asexual reproduction in prokaryotes, such as bacteria. It results in the production of two genetically identical daughter cells. This highly efficient process ensures the rapid propagation of bacterial populations under favorable conditions and involves coordinated cellular and molecular events.DNA Replication and SeparationThe process begins with the replication of the bacterial chromosome. The circular DNA molecule unwinds at a specific origin of...
01:20
Binary Fission
0 Views •
2026
Fission is the division of a single entity into two or more parts, which regenerate into separate entities that resemble the original. Organisms in the Archaea and Bacteria domains reproduce using binary fission, in which a parent cell splits into two parts that can each grow to the size of the original parent cell. This asexual method of reproduction produces cells that are all genetically identical. The speed of Bacterial Fission Though its speed varies among species, binary fission is...
10:01
An Efficient Strategy for Generating Tissue-specific Binary Transcription Systems in Drosophila by Genome Editing
0 Views •
Cited by 7 •
2018
Here, we present a method for generating tissue-specific binary transcription systems in Drosophila by replacing the first coding exon of genes with transcription drivers. The CRISPR/Cas9-based method places a transactivator sequence under the endogenous regulation of a replaced gene, and consequently facilitates transctivator expression exclusively in gene-specific spatiotemporal patterns.
02:06
Detection of Saccharibacteria in Binary Culture Using Polymerase Chain Reaction
0 Views •
2026
Source: Collins, A. J., et al., Establishing Stable Binary Cultures of Symbiotic Saccharibacteria from the Oral Cavity. J. Vis. Exp. (2021)This video demonstrates the use of Polymerase Chain Reaction (PCR) to detect Saccharibacteria in a binary culture with Actinomyces. The protocol outlines DNA amplification and gel electrophoresis to confirm a stable host-parasite interaction.
FAQs
The driver component produces a transcriptional activator in cells defined by its tissue-specific promoter. That activator recognizes the matching DNA-binding sites positioned upstream of the responder gene. When both components are present in the same cells, the responder gene can be expressed, linking cellular targeting by the driver to the selected genetic output.
Separating these functions allows the same regulatory strategy to control different responder genes without redesigning the tissue-targeting component. Conversely, a selected driver can direct several types of output in its defined cell population. This flexibility helps investigators examine gene function or mark cells while preserving control over which developmental population is affected.
The promoter used by the driver determines which cells produce the transcriptional activator, while its activity across development influences when the responder can be expressed. Consequently, the observed result depends on the overlap between driver activity and the developmental population being studied. This relationship is important when analyzing lineage specification or tissue formation.
First, select a driver whose promoter is active in the cell population or developmental stage of interest. Next, place the desired gene downstream of the matching DNA-binding sites in a responder component. Genetic crossing can then bring the two components together, allowing expression in cells where the driver and responder systems coincide.
A responder can be selected to label a cell population, activate a gene, inhibit a gene, or ablate the targeted cells. These outputs support different experimental questions: labeling follows selected populations, regulation tests gene function, and ablation examines the consequences of removing those cells. The driver determines where these effects occur.
The system is particularly useful when researchers need to connect a defined cell population with a developmental outcome. By targeting cells involved in lineage specification or tissue formation, investigators can follow their identity, alter gene activity, or remove them and then examine resulting changes. This provides a framework for relating cell-specific gene function to developmental processes.