Rac1 Knockout
Rac1 Knockout - Related Videos
05:17
Assessing Gastrointestinal Motility in Caenorhabditis elegans RAC1/CED-10 Mutants as a Tool to Study Early Parkinson's Disease
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2025
This protocol details a quantitative defecation assay in young RAC1/CED-10 mutant Caenorhabditis elegans, providing a straightforward model to study prodromal Parkinson's disease stages. It overcomes limitations of other animal models and facilitates testing of therapeutic strategies targeting early Parkinsonian pathology.
04:13
CRISPR Concatemer-Mediated Multiple Gene Knockout: A Technique to Simultaneously Knockout Multiple Genes by Non-Homologous End-Joining Pathway in Mouse Intestinal Cells
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2025
This video describes a gene knockout technique using a CRISPR-concatemer to simultaneously knock out multiple genes in cultured mouse intestinal organoid cells. This method is used to knock out a diseased gene and to elucidate the function of a gene and its paralogues.
10:59
Production of Apolipoprotein C-III Knockout Rabbits using Zinc Finger Nucleases
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Cited by 32 •
2013
Recent development in gene targeting tools makes production of knockout (KO) rabbits possible. In the present work, we generated five Apolipoprotein (Apo) C-III KO rabbits using Zinc Finger Nucleases (ZFN). This work demonstrated that ZFN is a highly efficient method to produce KO rabbits.
02:29
In-vitro Mutagenesis (Gene Knockouts)
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2026
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. The Process Genes can be randomly knocked out, or specific genes can be targeted. To knock out a particular gene, an engineered piece of DNA called a targeting vector is used to replace the...
11:35
Selection-dependent and Independent Generation of CRISPR/Cas9-mediated Gene Knockouts in Mammalian Cells
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Cited by 6 •
2017
Recent advances in the ability to genetically manipulate somatic cell lines hold great potential for basic and applied research. Here, we present two approaches for CRISPR/Cas9 generated knockout production and screening in mammalian cell lines, with and without the use of selectable markers.
FAQs
Removing functional Rac1 prevents this small Rho-family GTPase from cycling between its inactive GDP-bound and active GTP-bound states. That disruption eliminates Rac1-dependent signaling rather than simply changing the amount of an active signal. Researchers can therefore examine which cellular behaviors require this regulatory switch, including actin remodeling, polarity, adhesion, migration, and related signaling responses.
Rac1 helps regulate remodeling of the actin cytoskeleton, the internal filament network that supports cell shape and movement. When functional Rac1 is absent, cells may lose normal coordination between cytoskeletal organization and processes such as polarity, adhesion, and migration. This makes knockout models useful for connecting a molecular signaling defect with changes in cellular structure and behavior.
A Rac1 knockout can reveal whether particular cellular behaviors depend on Rac1 rather than merely occurring alongside its activity. Investigators can evaluate changes in cell polarity, adhesion, migration, actin remodeling, and signaling, then compare those outcomes with a control condition. The comparison helps distinguish processes that are specifically sensitive to loss of functional Rac1 from those that remain comparatively preserved.
The central comparison is between cells or organisms lacking functional Rac1 and matched control cells or organisms. Researchers assess differences in cellular behavior, tissue organization, development, or disease-related traits under the relevant experimental conditions. Interpreting the resulting contrast provides evidence for Rac1 dependence, while avoiding conclusions based only on observations from the knockout condition.
Rac1 knockout models are valuable when investigators need to determine how Rac1-dependent signaling contributes to embryonic development or tissue organization. Examining the absence of functional Rac1 across these contexts can reveal developmental or structural consequences that are difficult to assign from isolated signaling observations. The findings help connect cell-level regulation of movement and organization with larger biological outcomes.
These models support investigation of immune-cell behavior and disease mechanisms involving abnormal cell movement or growth. Loss of functional Rac1 allows researchers to ask whether those outcomes depend on Rac1-regulated cytoskeletal remodeling, adhesion, migration, or signaling. Such comparisons may identify pathways relevant to therapeutic research, while keeping the interpretation grounded in experimentally observed differences between knockout and control systems.