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Related Concept Videos

RNA Stability01:53

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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...
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Three main types of RNA are involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). These RNAs perform diverse functions and can be broadly classified as protein-coding or non-coding RNA. Non-coding RNAs play important roles in regulating gene expression in response to developmental and environmental changes. Non-coding RNAs in prokaryotes can be manipulated to develop more effective antibacterial drugs for human or animal use.
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DNA and RNA01:24

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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.
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RNA Editing02:23

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Related Experiment Video

Updated: Aug 14, 2025

Desthiobiotin-Streptavidin-Affinity Mediated Purification of RNA-Interacting Proteins in Mesothelioma Cells
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RNA deadenylation complexes in development and diseases.

Yilin Liu1,2, Niveditha Ramkumar1, Ly P Vu1,3

  • 1Terry Fox Laboratory, British Columbia Cancer Research Centre, Vancouver, BC, Canada.

Biochemistry and Cell Biology = Biochimie Et Biologie Cellulaire
|January 16, 2023
PubMed
Summary
This summary is machine-generated.

RNA deadenylation shortens the poly(A) tail, controlling gene expression. Dysregulation of PAN2/3 and CCR4-NOT complexes is linked to diseases like cancer and developmental disorders.

Keywords:
CCR4-NOT complexPAN complexRNA deadenylationRNA decaypoly(A) tailpost-transcriptional gene expression

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Area of Science:

  • Molecular Biology
  • Gene Expression Regulation

Background:

  • RNA deadenylation, the shortening of the 3' poly(A) tail, is crucial for post-transcriptional gene regulation in eukaryotes.
  • PAN2/3 and CCR4-NOT (CNOT) are the primary complexes mediating mRNA decay and translation control.

Purpose of the Study:

  • To review mechanisms of gene expression control by RNA deadenylation complexes.
  • To highlight the roles of deadenylation in development and disease.

Main Methods:

  • Literature review of RNA deadenylation mechanisms.
  • Analysis of the roles of PAN2/3 and CNOT complexes in gene regulation.

Main Results:

  • Deadenylation regulates cellular processes like growth, proliferation, and differentiation.
  • Aberrant deadenylation is implicated in various human diseases, including cancers and neurodevelopmental disorders.

Conclusions:

  • Understanding deadenylation mechanisms is vital for developing therapeutic strategies.
  • RNA deadenylation complexes are key regulators with significant implications for health and disease.