Related Experiment Video
Updated: Nov 23, 2025

11:34
High-throughput Screening for Broad-spectrum Chemical Inhibitors of RNA Viruses
Published on: May 5, 2014
14.1K
Programmed -1 Ribosomal Frameshifting in coronaviruses: A therapeutic target
Jamie A Kelly1, Michael T Woodside2, Jonathan D Dinman1
1Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD, 20742, USA.
Virology
|January 2, 2021
Summary
Emerging viruses like coronaviruses utilize a programmed -1 ribosomal frameshift (-1 PRF) for replication. Understanding this mechanism offers therapeutic targets against viral diseases, including SARS-CoV-2.
Area of Science:
- Virology
- Molecular Biology
- Emerging Infectious Diseases
Background:
- Global changes like climate change and globalization accelerate the emergence of novel pathogenic viruses.
- The coronavirus family, including SARS-CoV-2, poses significant threats due to rapid viral emergence.
- Understanding viral replication mechanisms is crucial for identifying therapeutic vulnerabilities.
Purpose of the Study:
- To review the virological significance of programmed -1 ribosomal frameshift (-1 PRF) in coronaviruses.
- To elucidate the molecular mechanisms underlying -1 PRF.
- To explore therapeutic strategies targeting -1 PRF in viral infections, with a focus on SARS-CoV-2.
Main Methods:
- Literature review of nearly 50 years of research on -1 PRF.
- Analysis of molecular mechanisms driving -1 PRF in viral replication.
- Discussion of therapeutic approaches to manipulate -1 PRF.
Main Results:
- Programmed -1 PRF is a critical mechanism for coronavirus replicase protein synthesis.
- Decades of research have illuminated the intricacies of -1 PRF.
- -1 PRF presents a druggable target for antiviral therapies.
Conclusions:
- Targeting the programmed -1 PRF mechanism offers a promising strategy for developing novel antiviral therapeutics.
- Further research into -1 PRF can yield effective treatments against emerging viral threats like SARS-CoV-2.
- The study highlights the importance of fundamental research in understanding and combating viral diseases.
Related Concept Videos
Leaky Scanning
5.4K
During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R...
5.4K
Types of RNA
71.0K
Overview
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 the regulation of 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.
RNA...
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 the regulation of 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.
RNA...
71.0K
Ribosomal RNA Synthesis
3.8K
3.8K
Ribosomal RNA Synthesis
14.1K
Ribosome synthesis is a highly complex and coordinated process involving more than 200 assembly factors. The synthesis and processing of ribosomal components occurs not only in the nucleolus but also in the nucleoplasm and the cytoplasm of eukaryotic cells.
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
Ribosome biogenesis begins with the synthesis of 5S and 45S pre-rRNAs by distinct RNA polymerases. The primary transcripts are extensively processed and modified before they are bound and folded by ribosomal proteins and assembly factors,...
14.1K
Translational Regulation
364
Translational regulation in prokaryotes ensures efficient protein synthesis by controlling ribosome access to mRNA. This regulation is mediated by secondary RNA structures, including translational riboswitches, RNA thermometers, and small RNAs (sRNAs), which respond to intracellular and environmental signals to modulate gene expression.Translational RiboswitchesRiboswitches in the leader region of mRNAs can regulate translation by altering the accessibility of the Shine-Dalgarno (SD) sequence,...
364
Ribozymes
3.1K
3.1K

