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Related Concept Videos

RNA Structure01:19

RNA Structure

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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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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.
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Transfer RNA Synthesis02:36

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One of the unique features of tRNA is the presence of modified bases. In some tRNAs, modified bases account for nearly 20% of the total bases in the molecule. Altogether, these unusual bases protect the tRNA from enzymatic degradation by RNases.
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Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
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An Oligonucleotide-based Tandem RNA Isolation Procedure to Recover Eukaryotic mRNA-Protein Complexes
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A trifunctional, triangular RNA-protein complex.

Shoji J Ohuchi1, Fumihiko Sagawa1, Taiichi Sakamoto2

  • 1Graduate School of Biostudies, Kyoto University, Oiwake-cho, Kitashirakawa, Sakyo-ku, Kyoto 606-8502, Japan.

FEBS Letters
|July 18, 2015
PubMed
Summary
This summary is machine-generated.

Researchers created a novel triangular RNA-protein complex (RNP) by attaching three proteins to an RNA scaffold. This molecular tool offers a new way to build custom multifunctional molecules for diverse applications.

Keywords:
Kissing loop interactionRNA–protein complexRNP nano-object

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Area of Science:

  • Molecular Biology
  • Biochemistry
  • Synthetic Biology

Background:

  • Multifunctional molecular complexes are essential for various scientific and technological applications.
  • RNA-protein complexes (RNPs) offer a versatile platform for constructing complex molecular architectures.
  • Existing methods for creating custom molecular complexes can be limited in scope or complexity.

Purpose of the Study:

  • To develop a novel RNA-protein complex (RNP) with a defined triangular structure.
  • To demonstrate the self-assembly of a multifunctional RNP using specific protein-RNA interactions.
  • To establish an alternative method for producing customized molecular tools.

Main Methods:

  • Design and synthesis of three distinct RNA strands.
  • Incorporation of specific binding sites for the ribosomal protein L7Ae.
  • Utilizing RNA kissing loop (KL) interactions for autonomous RNP self-assembly.
  • Characterization of the resulting triangular RNP structure and functionality.

Main Results:

  • Successfully constructed a triangular RNA scaffold capable of binding three different proteins.
  • Demonstrated autonomous self-assembly of the RNA scaffold into a single RNP complex via KL interactions.
  • Confirmed the specific binding of the target ribosomal protein, L7Ae, to the designed RNA strands.
  • The RNP complex exhibited a defined, triangular architecture with potential for multifunctional applications.

Conclusions:

  • A novel, self-assembling triangular RNA-protein complex (RNP) has been successfully developed.
  • This RNP-based approach provides a versatile platform for creating customized multifunctional molecular tools.
  • The method offers an alternative strategy for designing molecules with tailored dimensions, functions, and targets.