The development of GFP reporter stable cell lines, particularly in the context of HEK293 cells, traces back to the early 1990s with the discovery of the green fluorescent protein (GFP) from the jellyfish Aequorea victoria by Shimomura et al. in 1962. The utilization of GFP as a molecular marker gained prominence following the elucidation of its structure and the subsequent demonstration of its utility as a versatile reporter molecule for cellular processes. Subsequent advancements in molecular biology techniques facilitated the engineering of GFP variants with improved fluorescence properties and expanded applications.
In the case of HEK293 cells, the establishment of stable cell lines expressing GFP reporters involved the transfection of plasmids encoding GFP constructs into these cells, followed by selection and clonal expansion of cells expressing the reporter gene. Over the years, optimization of transfection protocols, selection markers, and expression vectors has enhanced the efficiency and stability of GFP reporter cell line generation in HEK293 cells. These stable cell lines have become invaluable tools in various research fields, including cell biology, drug discovery, and disease modeling, enabling the visualization and quantification of cellular processes in real-time.
Barrier-to-autointegration factor (BAF) is a conserved protein found in metazoans, playing diverse roles throughout the cell cycle. Researchers utilized the GFP Reporter Stable Cell Line-HEK293 to investigate the multifaceted role of BAF in mammalian cells. They discovered that BAF undergoes SUMOylation at K6, crucial for its nuclear localization and functions including nuclear integrity maintenance and DNA replication. K6-linked SUMOylation facilitates BAF's interaction with lamin A/C, DNA binding, and regulation of DNA replication. SENP1 and SENP2 mediate the de-SUMOylation of BAF at K6. This study highlights the significance of SUMOylation at K6 in governing BAF's nuclear functions and provides insights into cellular processes regulated by BAF in mammalian cells.
Figure 1. The capability of investigating protein interactions and post-translational modifications is facilitated by GFP Reporter Stable Cell Line-HEK293. It allows GFP-tagged proteins to be expressed in HEK293 cells for co-immunoprecipitation assays, visualization of subcellular localization, and modification analysis. These capabilities offer valuable insights into cellular processes' molecular mechanisms. (Lin Q, et al., 2020)
1. Fluorescence Screening: Utilize GFP Reporter Stable Cell Line-HEK293 to rapidly screen compounds for their effects on specific cellular pathways, facilitating drug discovery.
2. Gene Expression Studies: Assess promoter activity or gene regulation dynamics by monitoring GFP expression levels in response to various stimuli or genetic manipulations.
3. Signal Transduction Analysis: Investigate intracellular signaling cascades by monitoring GFP expression changes in real-time upon pathway activation or inhibition.
4. Cellular Interaction Studies: Track cellular behaviors, such as migration or proliferation, by labeling cells with GFP and analyzing their movements or growth patterns.
5. Drug Toxicity Assessment: Evaluate the cytotoxic effects of compounds by observing changes in GFP expression levels within the GFP Reporter Stable Cell Line-HEK293.
6. Disease Modeling: Create disease models by introducing disease-related genes into GFP Reporter Stable Cell Line-HEK293, enabling the study of disease progression or screening for potential therapeutics.
Customer Q&As
What factors influenced the selection of HEK293 cells for establishing the GFP reporter stable cell line?
A: HEK293 cells were selected for establishing the GFP reporter stable cell line due to their high transfection efficiency and suitability for protein expression studies. Additionally, HEK293 cells are well-characterized and widely used in research, facilitating comparison with existing data.
What techniques were utilized to verify and maintain the stability and expression level of GFP in the HEK293 stable cell line?
A: Techniques utilized to verify and maintain stability and expression level of GFP in the HEK293 stable cell line included stable transfection, antibiotic selection, and validation of expression using fluorescence microscopy or flow cytometry. The maintenance involved regular subculture and monitoring of fluorescence intensity.
How would you describe the functional characterization of GFP expression in the HEK293 stable cell line, considering its responsiveness to regulatory elements and involvement in cellular processes?
A: Functional characterization of GFP expression in the HEK293 stable cell line involved assessing its responsiveness to regulatory elements by analyzing changes in fluorescence intensity in response to stimuli such as promoter activation or cellular stress. Additionally, GFP's involvement in cellular processes such as protein localization or cell cycle progression was investigated using live-cell imaging or immunofluorescence assays.
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Customer Reviews
Valuable resource for drug discovery and cell biology
An invaluable resource! The GFP Reporter Stable Cell Line has significantly enhanced my research capabilities, offering a versatile tool for studying gene expression, protein localization, and drug effects in vitro.
Streamlined experimental workflows
Its stable GFP expression simplifies experimental workflows, allowing for rapid data acquisition and analysis, and accelerating discoveries in cell biology and drug development. This cell line surpasses expectations, providing bright and uniform GFP fluorescence, facilitating accurate quantification and visualization of cellular events.
Versatile GFP expression
Unmatched versatility. The GFP Reporter Stable Cell Line in HEK293 cells offers stable and high-level expression of GFP, enabling a wide range of applications in my cell biology and drug discovery research.
United Kingdom
02/24/2020
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