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Alternative RNA Splicing02:18

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Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
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Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
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The alternative coordinate method, also known as the Shoelace Formula, is a technique for determining the area of a traverse using Cartesian coordinates. This method relies on the sequential arrangement of x and y coordinates for each point of the shape, ensuring accuracy and ease of application.In this approach, each corner's x and y coordinates are listed as fractions, with the x-coordinate as the numerator and the y-coordinate as the denominator. These coordinates are arranged sequentially...
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High-Throughput Screening Method to Identify Alternative Splicing Regulators.

Cheryl Stork1, Sika Zheng2

  • 1Division of Biomedical Sciences, University of California, Riverside, Riverside, CA, USA.

Methods in Molecular Biology (Clifton, N.J.)
|April 20, 2018
PubMed
Summary
This summary is machine-generated.

Researchers developed a novel high-throughput screening method using dual-fluorescence minigene reporters to accurately identify splicing regulators, accelerating disease research.

Keywords:
Alternative splicingDual-fluorescence minigene reportersGFPHigh-throughput screenRFP

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Area of Science:

  • Molecular Biology
  • Genetics
  • Biochemistry

Background:

  • Misregulation of alternative pre-mRNA splicing is implicated in numerous human diseases.
  • Identifying splicing regulators, often RNA binding proteins, has been challenging and slow.
  • Existing high-throughput methods for splicing assays often lack sensitivity and specificity.

Purpose of the Study:

  • To develop a sensitive and specific high-throughput screening method for identifying exon splicing regulators.
  • To overcome limitations of current splicing assay sensitivity and specificity.

Main Methods:

  • Utilized dual-fluorescence minigene reporters for sensitive detection of exon splicing changes.
  • Employed two complementary minigenes expressing GFP and RFP oppositely for enhanced specificity.
  • Designed the method for screening cDNA, shRNA, or chemical libraries.

Main Results:

  • The dual-fluorescence reporter system allows for sensitive detection of exon splicing changes.
  • The complementary reporter design significantly reduces false positives, enhancing specificity.
  • The method enables sensitive identification of true splicing regulators.

Conclusions:

  • This novel screening method offers a sensitive and specific approach to identify splicing regulators.
  • The technique has broad applicability for discovering splicing modulators from various libraries.
  • Accelerating the discovery of splicing regulators can aid in understanding and treating diseases.