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Related Concept Videos

Nucleic Acids02:43

Nucleic Acids

Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). 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 in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
Nucleic acids02:43

Nucleic acids

Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). 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 in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
Nucleic Acids02:43

Nucleic Acids

Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). 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 in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
Nucleic Acids02:43

Nucleic Acids

Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
DNA and RNA
The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). 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 in the organelles, chloroplasts, and mitochondria. In prokaryotes, the...
Nucleic Acid Structure01:25

Nucleic Acid Structure

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
DNA has a double-helix structure. The...
Types of RNA01:20

Types of 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 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.
RNA Performs Diverse...

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RNA-Associated Chromatin DNA-DNA Interaction Method
11:01

RNA-Associated Chromatin DNA-DNA Interaction Method

Published on: April 30, 2026

DNA acting like RNA.

Robert V Brown1, Laurence H Hurley

  • 1University of Arizona, College of Pharmacy, Department of Pharmacology and Toxicology, Tucson, AZ 85721, USA.

Biochemical Society Transactions
|March 25, 2011
PubMed
Summary
This summary is machine-generated.

Secondary non-B-DNA structures like G-quadruplexes and i-motifs are key to gene expression and telomeric interactions. These DNA structures share folding and biological parallels with complex RNA structures.

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Area of Science:

  • Molecular Biology
  • Genetics
  • Biochemistry

Background:

  • Secondary non-B-DNA structures, including G-quadruplexes and i-motifs, are increasingly recognized for their biological roles.
  • These structures are implicated in critical cellular processes such as telomeric interactions and gene expression regulation.

Purpose of the Study:

  • To review the structural and dynamic similarities between non-B-DNA secondary structures and complex RNA structures.
  • To discuss the biological implications and consequences of these folded DNA and RNA motifs.

Main Methods:

  • Comparative analysis of structural and dynamic properties of DNA and RNA secondary structures.
  • Review of literature on the biological roles and folding mechanisms of G-quadruplexes, i-motifs, and RNA structures.

Main Results:

  • Significant parallels exist in the folding mechanisms of DNA and RNA secondary structures, influenced by sequence and ion concentrations.
  • Both DNA and RNA secondary structures exhibit comparable biological consequences related to their folded states.

Conclusions:

  • Non-B-DNA structures and complex RNA structures share fundamental similarities in folding principles and biological functions.
  • Understanding these parallels provides insights into the regulatory roles of nucleic acid structures in cellular processes.