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Related Concept Videos

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 Structure01:19

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...
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 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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RNA Secondary Structure Prediction Using High-throughput SHAPE
13:42

RNA Secondary Structure Prediction Using High-throughput SHAPE

Published on: May 31, 2013

Comparing RNA secondary structures using a relaxed base-pair score.

Phaedra Agius1, Kristin P Bennett, Michael Zuker

  • 1Computational Biology Center, Memorial Sloan-Kettering Cancer Center, New York, New York 10065, USA.

RNA (New York, N.Y.)
|April 3, 2010
PubMed
Summary
This summary is machine-generated.

This study introduces a new Relaxed Base-Pair (RBP) score for RNA folding, offering a more biologically realistic measure of structural differences than the traditional base-pair (BP) metric. This improved scoring leads to more stable and meaningful clustering of RNA structures.

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Area of Science:

  • Computational biology
  • Bioinformatics
  • Structural biology

Background:

  • Free energy algorithms generate numerous RNA secondary structures.
  • Clustering these structures and identifying representative foldings is crucial.
  • Accurate measurement of structural differences is needed for effective clustering.

Purpose of the Study:

  • Introduce a novel Relaxed Base-Pair (RBP) score for RNA structure comparison.
  • Develop a more biologically realistic metric than the existing base-pair (BP) metric.
  • Enhance the clustering of RNA secondary structures.

Main Methods:

  • Developed the Relaxed Base-Pair (RBP) score with a tunable relaxation parameter (t).
  • Compared RBP score performance against the traditional base-pair (BP) metric.
  • Utilized the RBP score for computing representative RNA foldings within clusters.

Main Results:

  • The RBP score provides a more biologically realistic measure of structural differences.
  • Relaxed measures yield more stable and meaningful clusters compared to the BP metric.
  • The RBP score allows for flexible recomputation with varying relaxation parameters at low computational cost.

Conclusions:

  • The Relaxed Base-Pair (RBP) score improves the analysis and clustering of RNA secondary structures.
  • This new metric offers a more nuanced and biologically relevant approach to RNA folding comparison.
  • The RBP score facilitates more accurate identification of representative RNA structures.