Decapping
Decapping - Related Videos
02:51
mRNA Stability and Gene Expression
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2020
The structure and stability of mRNA molecules regulates gene expression, as mRNAs are a key step in the pathway from gene to protein. In eukaryotes, the half-life of mRNA varies from a few minutes up to several days. mRNA stability is essential in growth and development. The absence of the proteins regulating its stability, such as tristetraprolin in mice, can cause systemic issues, including bone marrow overgrowth, inflammation, and autoimmunity. Cis-acting Elements involved in mRNA stability
04:38
A Novel Technique of Rescuing Capsulorhexis Radial Tear-out using a Cystotome
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Cited by 4 •
2011
Capsulorhexis is an important step in phacoemulsification surgery. A surgeon creates a continous curvilinear tear on the anterior lens capsule by controlling the tearing vector forces. A peripherally extended tear is a serious complication. This video demonstrates a novel technique of rescuing capsular radial tear out using a cystotome.
02:25
PCR-Based Detection of Foodborne Pathogens from Enriched Fly Samples
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2026
Source: Pava-Ripoll, et al. Detection of Foodborne Bacterial Pathogens from Individual Filth Flies. J. Vis. Exp. (2015)This video demonstrates a PCR-based method that amplifies target bacterial DNA from enriched fly samples using pathogen-specific tablets, enabling real-time fluorescence detection and melting curve analysis to confirm the presence of foodborne pathogens in individual insects.
10:01
Alginate Microcapsule as a 3D Platform for Propagation and Differentiation of Human Embryonic Stem Cells (hESC) to Different Lineages
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Cited by 20 •
2012
We have optimized a microencapsulation technique as an effective 3D platform for propagation and differentiation of embryonic stem cells to endoderm and dopaminergic (DA) neurons. It also provides an opportunity for immune-isolation of cells from the host during transplantation. This platform can be adapted for other cell types.
08:17
A Semi-automated Approach to Preparing Antibody Cocktails for Immunophenotypic Analysis of Human Peripheral Blood
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Cited by 9 •
2016
Whole blood Immunophenotyping is indispensable for monitoring the human immune system. However, the number of reagents required and the instability of specific fluorochromes in premixed cocktails necessitates daily reagent preparation. Here we show that semi-automated preparation of staining antibody cocktail helps establish reliable immunophenotyping by minimizing variability in reagent dispensing.
FAQs
Dcp2 acts at a regulatory gateway for messenger RNA fate. By hydrolyzing the cap, it changes the transcript from a protected, translation-compatible state to one whose 5′ end can be attacked by exonucleases. This coupling links a specific enzymatic event to transcript clearance, so decapping can rapidly alter which mRNAs remain available for protein production.
Decapping does not operate in isolation. Deadenylation, RNA-binding proteins, and processing bodies act alongside cap removal to influence whether a transcript is stored, translated, or destroyed. These relationships make decapping part of a broader regulatory network rather than a simple degradation switch. The final RNA fate reflects coordinated activity among these components.
Loss of the cap has two linked consequences for an mRNA: it makes the 5′ end accessible to exonucleases and typically prevents continued translation. Thus, decapping connects RNA stability with gene expression at the post-transcriptional level. A change in decapping activity can therefore affect both transcript abundance and the amount of protein produced from remaining messages.
Studies of decapping can reveal how eukaryotic cells control messenger RNA lifetimes after transcription has occurred. The process provides a framework for examining how cells balance storage, translation, and destruction of transcripts. This makes it relevant to post-transcriptional regulation, where gene expression is adjusted through RNA fate and the resulting availability of messenger RNAs.
Decapping helps determine whether existing mRNAs are stored, translated, or destroyed, allowing it to participate in cellular responses to changing conditions. Regulation of transcript stability can reshape the available messenger RNA pool and thereby influence gene expression. This links the process to dynamic control of which messages remain accessible for protein production as cellular needs change.
Defects in RNA metabolism associated with disease can be examined through decapping because the process lies between mRNA protection and exonuclease-mediated breakdown. Disrupted coordination among cap removal, deadenylation, RNA-binding proteins, or processing bodies could alter transcript persistence or translation. Studying these relationships helps connect abnormal RNA handling with changes in gene-expression control.