Rna Degradation
Rna Degradation - Related Videos
02:11
Proteins: From Genes to Degradation
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2020
Within a biological system, the DNA encodes the RNA, and the nucleotide sequence in the RNA further defines the amino acid sequence in the protein. This is referred to as “The Central Dogma of Molecular Biology” - a term coined by Francis Crick. Central dogma is a firm principle in biology that defines the flow of genetic information within any life form. The two fundamental steps in central dogma are - transcription and translation. Transcription is the synthesis of RNA molecules by RNA...
07:30
Optimization for Sequencing and Analysis of Degraded FFPE-RNA Samples
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Cited by 19 •
2020
This method describes the steps to improve the quality and quantity of sequence data that can be obtained from formalin-fixed paraffin-embedded (FFPE) RNA samples. We describe the methodology to more accurately assess the quality of FFPE-RNA samples, prepare sequencing libraries, and analyze the data from FFPE-RNA samples.
02:58
Regulated Protein Degradation
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2020
It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells. Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
09:20
Identification of RNA Fragments Resulting from Enzymatic Degradation using MALDI-TOF Mass Spectrometry
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Cited by 5 •
2022
MALDI-TOF was used to characterize fragments obtained from the reactivity between oxidized RNA and the exoribonuclease Xrn-1. The present protocol describes a methodology that can be applied to other processes involving RNA and/or DNA.
01:53
RNA Stability
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2019
Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
FAQs
The two enzyme classes attack different locations on an RNA molecule. Endonucleases cleave within the strand, creating internal breaks, whereas exonucleases remove nucleotides from an end. This distinction helps explain why a transcript’s structure and available ends can influence its decay route. Comparing these activities is useful for understanding how RNA quality and abundance are controlled.
The 5′ cap and poly(A) tail act as RNA features that can affect how quickly a transcript is degraded. Their presence or condition helps determine whether an RNA remains available or becomes more susceptible to breakdown. Examining these structures therefore connects transcript stability with post-transcriptional regulation and helps explain differences in messenger RNA persistence.
Sequence-specific signals can direct degradation rates for particular RNA molecules rather than affecting every transcript equally. This provides a way for cells to regulate selected messages according to their sequence features. Such selectivity is important when studying how post-transcriptional control adjusts RNA levels and helps produce different cellular responses under changing conditions.
RNA degradation helps prevent faulty transcripts from accumulating in the cell. By removing RNA molecules that are not suitable for continued use, degradation supports RNA quality while also influencing the pool of messages available for protein synthesis. This quality-control role distinguishes turnover from simple RNA loss, because breakdown can protect cellular function as well as regulate gene expression.
The duration of messenger RNA availability depends partly on how quickly the molecule is degraded. Faster turnover can shorten the period during which a transcript remains available for protein synthesis, while slower breakdown can extend that period. Measuring or comparing degradation rates therefore helps connect post-transcriptional regulation with changes in gene-expression output.
Investigating these pathways can clarify how cells regulate gene expression after transcription, maintain RNA quality, and respond to changing conditions. It also provides context for examining development and disease mechanisms, where altered RNA handling may affect cellular behavior. The resulting information links molecular RNA turnover with broader biological processes rather than treating degradation as an isolated event.