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Related Concept Videos

RNA-seq03:21

RNA-seq

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RNA sequencing, or RNA-Seq, is a high-throughput sequencing technology used to study the transcriptome of a cell. Transcriptomics helps to interpret the functional elements of a genome and identify the molecular constituents of an organism. Additionally, it also helps in understanding the development of an organism and the occurrence of diseases. 
Before the discovery of RNA-seq, microarray-based methods and Sanger sequencing were used for transcriptome analysis. However, while...
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Multiplexed Single Cell mRNA Sequencing Analysis of Mouse Embryonic Cells
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A method for generating highly multiplexed ChIP-seq libraries.

Ethan Ford, Chrysa Nikopoulou, Antonis Kokkalis

  • 1Biomedical Research Foundation, Academy of Athens, 4 Soranou Efesiou Street, Athens 11527, Greece. thanos@bioacademy.gr.

BMC Research Notes
|June 3, 2014
PubMed
Summary
This summary is machine-generated.

This study presents an efficient method for creating barcoded ChIP-seq libraries for Illumina sequencing. Key steps include converting Y-shaped adapters and using qPCR to prevent over-amplification, reducing contamination and bias.

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Area of Science:

  • Molecular Biology
  • Genomics
  • Biotechnology

Background:

  • Next-generation sequencing (NGS) library barcoding is crucial for multiplexing and reducing bias.
  • Existing barcoding methods present limitations for ChIP-sequencing (Chromatin immunoprecipitation sequencing).

Purpose of the Study:

  • To develop an efficient and cost-effective barcoding strategy for ChIP-seq libraries.
  • To overcome technical barriers associated with current barcoding approaches for ChIP-seq.

Main Methods:

  • Conversion of Y-shaped sequencing adapters to double-stranded DNA before size selection.
  • Quantitative PCR (qPCR) to determine optimal amplification cycles.

Main Results:

  • Reduced adapter dimer contamination through double-stranded adapter conversion and gel size selection.
  • Elimination of library over-amplification by precise qPCR-based cycle quantification.

Conclusions:

  • An efficient and cost-effective method for generating barcoded ChIP-seq libraries is presented.
  • The method is suitable for sequencing on the Illumina platform.