Subcellular Mrna Localization
Subcellular Mrna Localization - Related Videos
05:04
An Immunolabeling Technique to Visualize the Subcellular Localization of Proteins
0 Views •
2025
This video demonstrates a technique for the immunolabeling of sigma-1 receptors in a murine heart tissue section using quantum dots. The heart tissue is fixed, osmicated, stained, dehydrated, embedded in resin, and then sectioned. The sections are then treated with antibodies and labeled with quantum dots to demarcate the subcellular localization of Sigma-1 receptors using electron microscopy.
09:59
Utilizing pHluorin-tagged Receptors to Monitor Subcellular Localization and Trafficking
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Cited by 3 •
2017
Labeling the extracellular domain of a membrane protein with a pH sensitive fluorophore, superecliptic pHluorin (SEP), allows subcellular localization, expression, and trafficking to be determined. Imaging SEP-labeled proteins with total internal reflection fluorescence microscopy (TIRFM) enables the quantification of protein levels in the peripheral ER and plasma membrane.
02:22
Regulated mRNA Transport
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2020
In eukaryotes, transcription and translation are compartmentalized; an mRNA is first synthesized in the nucleus and then selectively transported to the cytoplasm for protein synthesis. Before transport, a pre-mRNA undergoes several steps of post-transcriptional modifications including splicing, 5' capping, and the addition of a poly-adenine tail. Various proteins bind to the pre-mRNA during these modifications. The mRNA transport takes place with the help of multiple proteins playing specific...
08:39
Live-cell Imaging of Fungal Cells to Investigate Modes of Entry and Subcellular Localization of Antifungal Plant Defensins
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Cited by 6 •
2017
Plant defensins play an important role in plant defense against pathogens. For effective use of these antifungal peptides as antifungal agents, understanding their modes of action (MOA) is critical. Here, a live-cell imaging method is described to study critical aspects of the MOA of these peptides.
07:06
Visualizing RNA Localization in Xenopus Oocytes
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Cited by 5 •
2010
Visualization of in vivo RNA transport is accomplished by microinjection of fluorescently labeled RNA transcripts into Xenopus oocytes, followed by confocal microscopy.
FAQs
Sequence elements within an mRNA provide information that can be recognized by RNA-binding proteins. These proteins help connect the transcript to the cellular machinery responsible for movement and positioning. Their interaction gives localization specificity, allowing particular messenger RNAs to reach distinct cellular regions instead of remaining distributed without spatial regulation.
Cytoskeletal transport moves an mRNA through the cell, while anchoring helps retain it at a specific cellular site. These functions solve different problems: transport establishes positioning, and anchoring maintains it. Coordinating both steps allows the transcript to remain near the region where its encoded protein is required.
Local translation allows a positioned mRNA to support protein production near its destination. This links RNA location with protein distribution, so the cell can coordinate gene expression with its internal architecture. The mechanism is especially relevant when proteins must be supplied to defined regions rather than produced uniformly throughout the cell.
By concentrating selected messenger RNAs in particular cellular regions, localization connects gene expression with spatial organization. The resulting protein production can be coordinated with cellular architecture, supporting cell polarity and the arrangement of cells within tissues. This makes RNA positioning an important layer of regulation beyond controlling which genes are expressed.
A study should consider the mRNA sequence elements, the RNA-binding proteins that recognize them, cytoskeletal transport, and anchoring at cellular sites. Examining these components together helps connect molecular targeting with the final distribution of the transcript. It also clarifies how local translation may arise from that spatial arrangement.
Subcellular mRNA Localization is particularly relevant to studies of cell polarity, development, neuronal function, and tissue organization. These settings depend on coordinating gene expression with cellular architecture. Examining RNA positioning in them can reveal how cells place protein production where it supports specialized structures, changing cell behavior, or organized tissues.
Disruptions in RNA transport or local translation can interfere with the normal distribution of proteins within cells. Because spatially regulated gene expression supports neuronal function, development, polarity, and tissue organization, studying these disruptions may help explain how altered RNA handling contributes to disease-related cellular abnormalities.