Engineered Bacteria
Engineered Bacteria - Related Videos
15:28
Engineering Adherent Bacteria by Creating a Single Synthetic Curli Operon
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Cited by 4 •
2012
The design of a synthetic operon encoding both the secretory apparatus and the structural monomers of curli fibers is described. Overproduction of these amyloids and adherent polymers allows a measurable gain of adherence of the E. coli chassis1. Easy ways to visualize and quantify adherence are explained.
10:38
An Overview of Genetic Engineering
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2023
Genetic engineering – the process of purposefully altering an organism’s DNA – has been used to create powerful research tools and model organisms, and has also seen many agricultural applications. However, in order to engineer traits to tackle complex agricultural problems such as stress tolerance, or to realize the promise of gene therapy for treating human diseases, further advances in the field are still needed. Important considerations include the safe and efficient delivery of genetic...
21:08
Engineering Cell-permeable Protein
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Cited by 12 •
2009
Protein transduction enables the direct delivery of biologically active proteins into cells. In contrast to conventional methods such as DNA transfection or viral transduction this non-invasive paradigm allows highly efficient cellular manipulation in a titratable manner circumventing cellular toxicity and the risk of oncogenic transformation by permanent genetic modification.
07:42
Overview of Bioprocess Engineering
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2023
Bioprocessing is a method that uses living organisms to produce a desired target product. Often, bioprocessing refers to the use of bioreactors to produce protein products from genetically engineered organisms. This field is responsible for the large-scale manufacture of biotherapeutics; drugs that have become essential to improving the quality of life for many with complex diseases like cancer, autoimmune diseases and HIV/AIDS. This video will introduce the engineering approach to designing a...
06:08
Genetic Engineering of Dictyostelium discoideum Cells Based on Selection and Growth on Bacteria
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Cited by 18 •
2019
Dictyostelium discoideum is a popular model organism to study complex cellular processes such as cell migration, endocytosis, and development. The utility of the organism is dependent on the feasibility of genetic manipulation. Here, we present methods to transfect Dictyostelium discoideum cells that overcome existing limitations of culturing cells in liquid media.
FAQs
Regulatory sequences help determine when and how strongly an introduced or edited gene is expressed. This control links the genetic change to the intended trait, molecule, or behavior rather than simply placing new DNA in a cell. Researchers can therefore adjust expression to support protein or chemical production and to study how gene activity influences cellular processes.
Selective conditions help researchers identify cells carrying the intended genetic changes from cells that were not modified as planned. This step narrows the population for further evaluation and supports assessment of whether the engineered trait is present. Selection is therefore connected to both experimental efficiency and reliable interpretation of the resulting bacterial system.
These approaches change bacterial genetic material in different ways. Introducing a gene adds genetic information, deleting a gene removes it, and editing a gene alters existing information. Researchers choose among them according to the desired trait, molecule, or behavior, making these modifications useful for investigating gene function as well as developing biological production systems.
A general workflow begins by selecting a genetic change linked to the desired trait, molecule, or behavior. Researchers then use recombinant DNA methods to introduce, delete, or edit genes, incorporate regulatory sequences to control expression, and apply selective conditions to identify cells with the intended changes. Performance, stability, and biological safety can then be evaluated.
Engineered bacteria can manufacture proteins, chemicals, and therapeutic products when their genetic programs are designed for those outputs. They can also function as biosensors, using biological responses to support detection or monitoring. These capabilities make them relevant to biomanufacturing and environmental monitoring, in addition to laboratory studies of gene function and cellular processes.
In biology, these cells provide systems for examining gene function and cellular processes by connecting specific genetic changes with observable traits or behaviors. Outside basic research, they can support environmental monitoring through biosensor functions. Researchers also consider performance, stability, and biological safety, with careful design and containment helping evaluate whether a system is suitable for its intended use.