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Related Concept Videos

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...
DNA as a Genetic Template02:05

DNA as a Genetic Template

Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...
DNA as a Genetic Template02:05

DNA as a Genetic Template

Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...
The DNA Helix01:07

The DNA Helix

Deoxyribonucleic acid, or DNA, is the genetic material responsible for passing traits from generation to generation in all organisms and most viruses. DNA is composed of two strands of nucleotides that wind around each other to form a spring-like structure called a double helix. However, the double helix is not perfectly symmetrical. Instead, there are regularly occurring grooves in the structure. The major groove occurs where the sugar-phosphate backbones are relatively far apart. This space...
The DNA Helix01:16

The DNA Helix

Overview
The DNA Helix01:16

The DNA Helix

Overview

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Related Experiment Video

Updated: May 9, 2026

Analyzing and Building Nucleic Acid Structures with 3DNA
16:24

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Published on: April 26, 2013

Effective Encoding for DNA Sequence Visualization Based on Nucleotide's Ring Structure.

A T M Golam Bari1, Mst Rokeya Reaz, A K M Tauhidul Islam

  • 1Department of Computer Engineering, Kyung Hee University, Gyeonggi-do, Yongin-si, Republic of Korea.

Evolutionary Bioinformatics Online
|August 3, 2013
PubMed
Summary
This summary is machine-generated.

This study introduces a novel graphical DNA sequence representation using nucleotide rings. This method enhances DNA similarity comparisons and phylogenetic analysis, offering improved accuracy and efficiency over existing techniques.

Keywords:
DNA curvehexagonring structureβ-globin gene

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Area of Science:

  • Bioinformatics
  • Computational Biology
  • Genomics

Background:

  • Effective representation of DNA sequences is crucial for genome analysis.
  • Existing methods may not fully preserve nucleotide chemical properties or positional information.

Purpose of the Study:

  • To propose a novel graphical representation for DNA sequences based on nucleotide ring structure.
  • To enhance the efficiency and accuracy of DNA sequence similarity comparisons.

Main Methods:

  • DNA sequences are converted into 16 dinucleotides on a hexagonal surface.
  • The representation preserves nucleotide chemical properties and positional information.
  • Phylogeny analysis is employed to study evolutionary relationships.

Main Results:

  • The proposed method achieves high accuracy in DNA sequence similarity comparison.
  • The graphical representation ensures uniqueness and no degeneracy of DNA sequences.
  • Experimental results demonstrate superior performance compared to existing methods in similarity assessment.

Conclusions:

  • The nucleotide ring-based graphical representation offers an effective approach for DNA sequence analysis.
  • This method provides a robust tool for comparative genomics and evolutionary studies.
  • The approach shows significant advantages in terms of accuracy and efficiency for DNA sequence comparison.