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RNA Structure01:23

RNA Structure

78.0K
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...
78.0K
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...
6.4K
Nucleic Acid Structure01:25

Nucleic Acid Structure

8.1K
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...
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The DNA Helix01:07

The DNA Helix

28.0K
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...
28.0K
The DNA Helix01:16

The DNA Helix

153.8K
Overview
153.8K
DNA as a Genetic Template02:05

DNA as a Genetic Template

25.7K
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...
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Related Experiment Video

Updated: Dec 7, 2025

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

Analyzing and Building Nucleic Acid Structures with 3DNA

Published on: April 26, 2013

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3dRNA: Building RNA 3D structure with improved template library.

Yi Zhang1, Jun Wang1, Yi Xiao1

  • 1Institute of Biophysics, School of Physics, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China.

Computational and Structural Biotechnology Journal
|October 2, 2020
PubMed
Summary
This summary is machine-generated.

We expanded RNA 3D structure prediction libraries for the 3dRNA method. These improved libraries significantly enhance the accuracy of computational RNA 3D structure modeling, especially for complex structures.

Keywords:
3D template library3dRNARNA 3D structure prediction

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Area of Science:

  • Computational biology
  • Structural biology
  • Bioinformatics

Background:

  • Template-based methods are common for RNA tertiary structure prediction.
  • These methods rely on existing 3D templates for accuracy.
  • A comprehensive template library is crucial for method applicability.

Purpose of the Study:

  • To improve the 3dRNA computational method for RNA tertiary structure prediction.
  • To expand the existing 3D template library for 3dRNA.
  • To enhance the accuracy of RNA 3D structure modeling.

Main Methods:

  • Developed two new 3D template libraries (3dRNA_Lib1 and 3dRNA_Lib2) using novel schemes.
  • Expanded the original 3dRNA template library by approximately tenfold.
  • Benchmarked the performance of the improved libraries.

Main Results:

  • The expanded libraries significantly increased the accuracy of the 3dRNA method.
  • Improvements were particularly notable for complex and large RNA 3D structures.
  • The new libraries provide a more robust foundation for template-based RNA structure prediction.

Conclusions:

  • The enhanced 3D template libraries substantially improve 3dRNA's capability in predicting RNA tertiary structures.
  • This work highlights the importance of comprehensive template libraries for advancing computational RNA modeling.
  • The improved 3dRNA method offers greater accuracy for complex RNA structural predictions.