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Related Concept Videos

RNA Structure01:19

RNA Structure

6.4K
The basic structure of RNA consists of a string of ribonucleotides attached by phosphodiester bonds. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA) involved in protein synthesis: messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three...
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RNA Structure01:23

RNA Structure

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Overview
The basic structure of RNA consists of a five-carbon sugar and one of four nitrogenous bases. Although most RNA is single-stranded, it can form complex secondary and tertiary structures. Such structures play essential roles in the regulation of transcription and translation.
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RNA Stability01:53

RNA Stability

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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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Nucleic Acid Structure01:25

Nucleic Acid Structure

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The pentose sugar in DNA is deoxyribose, while in RNA the pentose sugar is ribose. The difference between the sugars is the presence of the hydroxyl group on the ribose's second carbon and a hydrogen on the deoxyribose's second carbon. The phosphate residue attaches to the hydroxyl group of the 5′ carbon of one sugar and the hydroxyl group of the 3′ carbon of the sugar of the next nucleotide, which forms  a 5′ to 3′ phosphodiester linkage.
DNA Structure
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RNA Editing02:23

RNA Editing

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RNA editing is a post-transcriptional modification where a precursor mRNA (pre-mRNA) nucleotide sequence is changed by base insertion, deletion, or modification. The extent of RNA editing varies from a few hundred bases, in mitochondrial DNA of trypanosomes, to a just single base, in nuclear genes of mammals. Even a single base change in the pre-mRNA can convert a codon for one amino acid into the codon for another amino acid or a stop codon. This type of re-coding can significantly affect the...
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Leaky Scanning02:28

Leaky Scanning

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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...
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An Assay for Quantifying Protein-RNA Binding in Bacteria
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An Assay for Quantifying Protein-RNA Binding in Bacteria

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Special Issue: Frontiers in RNA Structure.

Quentin Vicens1

  • 1Department of Biochemistry and Molecular Genetics, University of Colorado Denver School of Medicine, Aurora, CO 80045, USA.

Molecules (Basel, Switzerland)
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Summary
This summary is machine-generated.

This study explores advanced RNA structure determination techniques. Researchers are pushing the boundaries of understanding RNA folding and function for novel therapeutic applications.

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Area of Science:

  • Molecular Biology
  • Biochemistry
  • Structural Biology

Background:

  • The intricate three-dimensional structures of RNA molecules are crucial for their diverse biological functions.
  • Understanding RNA folding pathways and dynamics is essential for deciphering gene regulation and disease mechanisms.
  • Recent technological advancements have opened new avenues for high-resolution RNA structure analysis.

Discussion:

  • Novel methodologies are enhancing our ability to probe RNA structures.
  • The dynamic nature of RNA is increasingly recognized.

Key Insights:

  • RNA molecules exhibit diverse structures beyond simple base pairing.
  • These structures are intrinsically linked to RNA's biological roles.

Outlook:

  • Future research will likely focus on structure-function relationships.
  • New therapeutic strategies may emerge from a deeper understanding of RNA biology.