Effector Component
Effector Component - Related Videos
12:23
Analysis of Yersinia enterocolitica Effector Translocation into Host Cells Using Beta-lactamase Effector Fusions
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Cited by 5 •
2015
Effector translocation into host cells via a type III secretion system is a common virulence strategy among gram-negative bacteria. A beta-lactamase effector fusion based assay for quantitative analysis of translocation was applied. In Yersinia infected cells, conversion of a FRET reporter by the beta-lactamase is monitored using laser scanning microscopy.
08:39
Electroporation of Functional Bacterial Effectors into Mammalian Cells
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Cited by 7 •
2015
Electroporation was used to insert purified bacterial virulence effector proteins directly into living eukaryotic cells. Protein localization was monitored by confocal immunofluorescence microscopy. This method allows for studies on trafficking, function, and protein-protein interactions using active exogenous proteins, avoiding the need for heterologous expression in eukaryotic cells.
04:41
Introduction of Bacterial Effector Proteins into Mammalian Cells by Electroporation
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2025
In this video, we demonstrate the introduction of bacterial effector proteins into mammalian cells by electroporation. The intracellular localization of the bacterial effector proteins is detected by confocal microscopy following staining with specific fluorophore-conjugated antibodies.
02:20
Monitoring Bacterial Infection and Effector Protein Delivery in Plant Cells
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2025
Source: Lee, H. et. al., Split Green Fluorescent Protein System to Visualize Effectors Delivered from Bacteria During Infection. J. Vis. Exp. (2018)This video demonstrates a method for monitoring bacterial infection and effector protein delivery in plant cells using split superfolder green fluorescent protein (sfGFP) complementation combined with confocal microscopy. The approach enables precise visualization of effector translocation into the host cell cytosol.
02:12
Co-Infiltration Assay for Screening Pathogen Effectors that Suppress Plant RNA Silencing
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2026
Source: Shi, J., et al. Screening and Identification of RNA Silencing Suppressors from Secreted Effectors of Plant Pathogens. J. Vis. Exp. (2020)This video demonstrates a co-infiltration assay for identifying pathogen effector proteins that suppress RNA silencing in Nicotiana benthamiana 16c. A fluorescent reporter and a candidate effector gene are delivered into plant leaves via Agrobacterium. Normally, RNA silencing degrades reporter transcripts, reducing fluorescence. Suppressor effectors...
FAQs
Activation can alter an effector component in several ways: it may change the component’s conformation, move it to a different cellular location, modify its enzymatic activity, or reshape its interactions with other molecules. These changes determine how a regulatory signal becomes a functional response, allowing the same signaling architecture to influence cellular behavior through distinct downstream effects.
A receptor or upstream signaling pathway primarily detects or relays regulatory information, whereas an effector component executes the downstream response. This separation helps explain how information moves through a biological system: detection initiates signaling, signal processing directs the pathway, and the effector component produces changes in cellular behavior through its activity, location, conformation, or molecular interactions.
Its downstream position connects signaling information with a measurable biological outcome. Studying that connection helps researchers trace mechanisms of action and determine how regulatory pathways control cellular behavior. It also clarifies where a response is produced, which can support efforts to understand disease-related pathways and identify points at which biological activity might be modified.
Identifying an effector component can show how a regulatory signal produces a functional outcome rather than merely indicating that signaling occurred. Researchers can use this information to map mechanisms of action, connect pathway activity with changes in cellular behavior, and understand how responses are controlled. The resulting pathway-level view is useful when investigating normal biology or disease-related regulation.
Effector components participate in several broad biological contexts, including immune defense, intracellular signaling, gene regulation, and host–pathogen interactions. Their roles differ according to the pathway and response being controlled, but each context depends on downstream activity translating regulatory information into functional consequences. Considering these settings helps place individual components within larger cellular and organismal processes.
In disease research, effector components help reveal how altered signaling produces or maintains abnormal cellular behavior. In host–pathogen interactions, they help connect regulatory pathways with responses involved in the relationship between host cells and infectious agents. Understanding these downstream roles can guide strategies for modifying disease-related pathways and clarify how biological defenses or pathogen-associated effects are controlled.