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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...
Types of RNA01:23

Types of RNA

Overview
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 the regulation of 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...
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...
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.
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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...
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...

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Novel RNA-Binding Proteins Isolation by the RaPID Methodology
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Novel RNA-Binding Proteins Isolation by the RaPID Methodology

Published on: September 30, 2016

Structure and function of nematode RNA-binding proteins.

Ebru Kaymak1, L M Wee, Sean P Ryder

  • 1Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA 01605, USA.

Current Opinion in Structural Biology
|April 27, 2010
PubMed
Summary
This summary is machine-generated.

Nematode RNA-binding proteins, like Pumilio-FBF (PUF), TTP-like zinc finger (TZF), and Argonaute-like (AGO) proteins, show expanded families. Structural variations in these proteins drive distinct gene expression regulation functions.

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Area of Science:

  • Molecular Biology
  • Genomics
  • Structural Biology

Background:

  • RNA-binding proteins regulate gene expression through mRNA localization, translation, stability, and synthesis.
  • Understanding RNA recognition mechanisms is crucial for deciphering gene regulation.
  • Nematode genomes exhibit expanded families of RNA-binding proteins, including PUF, TZF, and AGO proteins.

Purpose of the Study:

  • To review the structural basis of RNA recognition by RNA-binding proteins in nematodes.
  • To identify variable regions within nematode RNA-binding proteins that contribute to functional divergence.
  • To highlight structural examples and their implications for distinct protein functions.

Main Methods:

  • Review of existing structural data for nematode RNA-binding proteins.
  • Comparative analysis of protein sequences and structures.
  • Identification of key regions associated with RNA-binding specificity and protein interactions.

Main Results:

  • Nematode-specific expansions in PUF, TZF, and AGO protein families.
  • Evidence suggesting sequence variations lead to altered RNA-binding specificity and functional divergence.
  • Identification of specific structural regions likely responsible for functional diversification.

Conclusions:

  • Structural variations in nematode RNA-binding proteins are key to their diverse regulatory functions.
  • Expanded RNA-binding protein families in nematodes contribute to complex gene expression control.
  • Further structural and functional studies are needed to fully elucidate nematode-specific RNA regulation.