Gfp Translational Fusions
Gfp Translational Fusions - Related Videos
10:45
A Faster, High Resolution, mtPA-GFP-based Mitochondrial Fusion Assay Acquiring Kinetic Data of Multiple Cells in Parallel Using Confocal Microscopy
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Cited by 20 •
2012
Mitochondrial fusion was measured by tracking the equilibration of photoconverted matrix-targeted GFP across the mitochondrial network over time. Thus far, only one cell could be subjected to an hour long kinetic analysis at a time. We present a method that simultaneously measures multiple cells, thereby speeding up the data collection process.
02:45
Nuclear Fusion
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2020
The process of converting very light nuclei into heavier nuclei is also accompanied by the conversion of mass into large amounts of energy, a process called fusion. The principal source of energy in the sun is a net fusion reaction in which four hydrogen nuclei fuse and ultimately produce one helium nucleus and two positrons. A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
10:30
The C. elegans Excretory Canal as a Model for Intracellular Lumen Morphogenesis and In Vivo Polarized Membrane Biogenesis in a Single Cell: labeling by GFP-fusions, RNAi Interaction Screen and Imaging
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Cited by 6 •
2017
The C. elegans excretory canal is a unique single-cell model for the visual in vivo analysis of de novo polarized membrane biogenesis. This protocol describes a combination of standard genetic/RNAi and imaging approaches, adaptable for the identification and characterization of molecules directing unicellular tubulogenesis, and apical membrane and lumen biogenesis.
09:19
Analysis of SNARE-mediated Membrane Fusion Using an Enzymatic Cell Fusion Assay
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2012
We have developed a cell fusion assay that quantifies SNARE-mediated membrane fusion events by activated expression of β-galactosidase.
02:33
Initiation of Translation
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2020
Initiating translation is complex because it involves multiple molecules. Initiator tRNA, ribosomal subunits, and eukaryotic initiation factors (eIFs) are all required to assemble on the initiation codon of mRNA. This process consists of several steps that are mediated by different eIFs. First, the initiator tRNA must be selected from the pool of elongator tRNAs by eukaryotic initiation factor 2 (eIF2). The initiator tRNA (Met-tRNAi) has conserved sequence elements including modified bases at...
FAQs
An in-frame arrangement preserves a continuous reading sequence across the target gene and GFP coding region. This allows cellular translation machinery to produce the intended fusion polypeptide rather than disrupting the encoded product at the junction. Frame errors therefore prevent the construct from reporting the target protein as designed and can make fluorescence results uninterpretable.
The tag can be positioned at either end of the target protein, but the selected placement may influence folding, activity, localization, or other cellular behavior. A flexible linker can separate GFP from the target sequence and may help reduce interference at the junction. Comparing terminal arrangements is therefore part of careful construct design.
Fluorescence alone does not establish that the tagged protein still behaves like the untagged target. GFP can alter folding, activity, or cellular behavior, potentially producing misleading localization or movement patterns. Researchers therefore need to assess whether the fusion remains functionally representative before interpreting fluorescence as evidence about the native protein.
Fluorescence microscopy can use the GFP signal to examine where a target protein is located, how its abundance changes, or whether it moves within living cells. These observations can support studies of protein trafficking and interactions. The approach is especially useful when researchers need a visual readout linked directly to the target protein.
They are useful when investigators want to connect gene expression with the spatial behavior of the encoded protein. By observing fluorescence in living cells, researchers can investigate localization, movement, trafficking, or interactions rather than measuring expression alone. This makes the method relevant to studies of how proteins are positioned and handled inside cells.
Researchers should consider whether the fusion preserves the target protein's expected function and cellular behavior, while also examining whether GFP placement affects the result. Construct orientation, the presence of a flexible linker, and the observed fluorescence pattern all matter. Validation is essential because an altered fusion may display localization or movement that does not reflect the native protein.