Reporter Phage Construction
Reporter Phage Construction - Related Videos
11:31
'Bioluminescent' Reporter Phage for the Detection of Category A Bacterial Pathogens
0 Views •
Cited by 18 •
2011
A simple method for the identification of priority bacterial pathogens is to use genetically engineered reporter phage. These reporter phage, which are specific to their particular host species, are capable of rapidly transducing a bioluminescent signal response to host cells. Herein, we describe the use of reporter phage for the detection of Yersinia pestis.
04:30
Phage Purification from Borrelia burgdorferi
0 Views •
2026
Source: Eggers, C. H. Phage-Mediated Genetic Manipulation of the Lyme Disease Spirochete Borrelia burgdorferi. J. Vis. Exp. (2022).This video demonstrates the isolation of borrelial phage particles from a Borrelia burgdorferi suspension using polyethylene glycol-mediated phase separation. The sample is centrifuged, treated with a salt solution, and a molecular crowding agent to precipitate phages. Chloroform extraction is done to remove debris and concentrate phage particles. The purified phage...
08:25
Phage-mediated Delivery of Targeted sRNA Constructs to Knock Down Gene Expression in E. coli
0 Views •
Cited by 5 •
2016
We describe a method to knock down gene expression in a growing population of E. coli cells using sequence-targeted sRNA expression cassettes delivered by an M13 phagemid vector.
10:52
Precise Phage Mutagenesis with NgTET-Assisted CRISPR-Cas Systems
0 Views •
2025
Here, we present a protocol to reduce DNA modifications in bacteriophages using the NgTET enzyme, enabling efficient and scarless CRISPR-Cas mutagenesis. This method facilitates the genetic engineering of phages for applications in biotechnology and phage therapy.
12:31
Construction of Synthetic Phage Displayed Fab Library with Tailored Diversity
0 Views •
Cited by 7 •
2018
This protocol describes a detailed procedure for the construction of a phage-displayed synthetic antibody library with tailored diversity. Synthetic antibodies have broad applications from basic research to disease diagnostics and therapeutics.
FAQs
The reporter signal depends on a successful infection sequence rather than phage contact alone. The phage must attach to a susceptible bacterium, deliver its genome, and express the inserted reporter gene before fluorescence, luminescence, or enzymatic activity appears. This sequence links the measured signal to infected host cells and helps distinguish infection from simple phage presence.
Fluorescent, luminescent, and enzymatic reporters provide different measurable outputs, but the overview supports their shared purpose rather than a universal best choice. Reporter selection can therefore be matched to the intended readout, such as rapid bacterial detection or tracking infection over time. In each case, signal production depends on reporter expression inside the infected bacterium.
Host range determines which bacterial cells can support the infection steps needed for signal generation. A phage may therefore provide selective information about susceptible hosts, making host-range analysis a central use of Reporter Phage Construction. In infection studies, this selectivity helps connect detected signal with particular phage-host interactions rather than with bacteria generally.
The essential design action is to insert a reporter gene into the phage genome, then use a phage capable of infecting the bacterial host of interest. The resulting system is evaluated through the signal produced after attachment, genome delivery, and expression, allowing the construction to be linked to a measurable infection event.
In this application, the measurable infection signal becomes an output that can be incorporated into workflows assessing antimicrobial susceptibility. Because the readout depends on infection of a susceptible host, it offers selective information about the bacterial target rather than a nonspecific measurement. This may improve diagnostic workflows by making infection measurable rapidly.
Signal generation provides a time-linked readout after phage attachment, genome delivery, and reporter expression. Monitoring that output allows investigators to follow infection as it develops instead of relying only on a later endpoint. In infection research, this supports analysis of infection progression and how phage-host interactions relate to bacterial disease processes.
They connect a measurable bacterial infection event with questions about host range, disease, and immune responses. By identifying when phage-mediated infection-associated signals occur, investigators can examine how bacterial susceptibility and phage-host interactions contribute to infection studies. The approach therefore adds selective, trackable information to broader analyses of bacterial disease and immune response.