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Related Concept Videos

RNA Structure01:19

RNA Structure

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...
RNA Structure01:23

RNA Structure

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.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
RNA Structure01:23

RNA Structure

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.
Different Types of RNA Have the Same Basic Structure
There are three main types of ribonucleic acid (RNA): messenger RNA (mRNA), transfer RNA (tRNA), and ribosomal RNA (rRNA). All three RNA types consist of a...
Nucleic Acids and Nucleotides01:20

Nucleic Acids and Nucleotides

Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and have instructions for its functioning. The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Deoxyribonucleic Acid (DNA)
DNA is the genetic material in all living organisms, ranging from single-celled bacteria to multicellular mammals. It is in the nucleus of eukaryotes and the organelles such as chloroplasts and mitochondria. In...
DNA Base Pairing02:27

DNA Base Pairing

Erwin Chargaff’s rules on DNA equivalence paved the way for the discovery of base pairing in DNA. Chargaff’s rules state that in a double-stranded DNA molecule,
DNA Base Pairing02:27

DNA Base Pairing

Erwin Chargaff’s rules on DNA equivalence paved the way for the discovery of base pairing in DNA. Chargaff’s rules state that in a double-stranded DNA molecule,

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Related Experiment Video

Updated: May 24, 2026

Single-Molecule Fluorescence Visualization of DNA Polymerase Dynamics at G-Quadruplexes
05:37

Single-Molecule Fluorescence Visualization of DNA Polymerase Dynamics at G-Quadruplexes

Published on: April 4, 2025

RNA G-quadruplexes: G-quadruplexes with "U" turns.

Tani Agarwal1, Gopal Jayaraj, Satya Prakash Pandey

  • 1Institute for Genomics and Integrative Biology, Delhi, India.

Current Pharmaceutical Design
|March 2, 2012
PubMed
Summary

RNA G-quadruplexes, recently discovered structures, show significant potential for cellular regulation. This review compares their structure, stability, and function to DNA G-quadruplexes, highlighting their biological relevance.

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In Vitro Chemical Mapping of G-Quadruplex DNA Structures by Bis-3-Chloropiperidines
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In Vitro Chemical Mapping of G-Quadruplex DNA Structures by Bis-3-Chloropiperidines

Published on: May 12, 2023

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Genetics

Background:

  • G-quadruplexes are non-canonical secondary structures formed by guanine-rich sequences.
  • Extensive research has elucidated DNA G-quadruplex stability and in vivo existence.
  • RNA G-quadruplexes are recently discovered and gaining attention for their regulatory roles.

Purpose of the Study:

  • To review current knowledge on RNA G-quadruplexes.
  • To compare RNA G-quadruplexes with DNA G-quadruplexes.
  • To evaluate the structure, stability, function, and applications of RNA G-quadruplexes.

Main Methods:

  • Literature review and comparative analysis.
  • Evaluation of structural aspects of DNA and RNA G-quadruplexes.
  • Discussion of potential biological functions and physiological roles.

Main Results:

  • RNA G-quadruplexes exhibit inherent chemistry supporting in vivo existence and function.
  • Comparison reveals similarities and differences with DNA G-quadruplexes.
  • Plausible functions include translational suppression and splicing regulation.

Conclusions:

  • RNA G-quadruplexes play a crucial role in cellular regulation.
  • These structures have extensive potential in biological systems.
  • Further research is warranted to explore their full physiological relevance and applications.