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Related Concept Videos

Nucleic Acids02:43

Nucleic Acids

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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,...
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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.
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Nucleic Acids02:43

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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.
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Nucleic Acids and Nucleotides01:20

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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).
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Biosynthesis of Nucleic Acids01:28

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Nucleic acid biosynthesis is a fundamental biochemical process that produces the purine and pyrimidine nucleotides essential for DNA and RNA synthesis. This pathway maintains a balanced nucleotide pool, preventing imbalances that could jeopardize genetic integrity and cellular function. Given the crucial role of nucleotides, their synthesis is tightly regulated to ensure proper cellular homeostasis.Purine BiosynthesisThe biosynthesis of purine nucleotides begins with ribose-5-phosphate, a...
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Kinetic Screening of Nuclease Activity using Nucleic Acid Probes
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Prebiotic Evolution and Self-Assembly of Nucleic Acids.

Antonio Lazcano1

  • 1El Colegio Nacional and Facultad de Ciencias , Universidad Nacional Autónoma de México , Mexico City 04510 , Mexico.

ACS Nano
|October 24, 2018
PubMed
Summary

Prebiotic evolution explores the abiotic synthesis of molecules crucial for life

Area of Science:

  • Origin of life studies
  • Prebiotic chemistry
  • Systems chemistry

Background:

  • Prebiotic evolution precedes the emergence of life.
  • It involves the abiotic synthesis of monomers, oligomers, and supramolecular systems.
  • This research focuses on the hypothesized RNA world.

Purpose of the Study:

  • Compare one-pot synthesis (e.g., Miller-Urey) with multipot systems chemistry approaches.
  • Investigate the direct formation of RNA in primitive environments.
  • Address the significance of self-organizing RNA/DNA systems.

Main Methods:

  • Comparative analysis of synthesis strategies.
  • Evaluation of systems chemistry frameworks.
  • Assessment of liquid-crystal ordering and self-assembly phenomena.

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NanoDrop Microvolume Quantitation of Nucleic Acids
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Self-Assembly of Gamma-Modified Peptide Nucleic Acids into Complex Nanostructures in Organic Solvent Mixtures
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Main Results:

  • Discusses the successes of different prebiotic synthesis methods.
  • Highlights the potential for RNA formation via systems chemistry.
  • Examines the role of non-membranous, non-mineralic self-organization.

Conclusions:

  • Prebiotic synthesis routes offer insights into early life's chemical origins.
  • Systems chemistry provides a viable pathway for direct RNA formation.
  • Self-organizing nucleic acid systems are significant in prebiotic evolution.