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Related Concept Videos

RNA-seq03:21

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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. 
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Intact DNA strands can be found in fossils, while scientists sometimes struggle to keep RNA intact under laboratory conditions. The structural variations between RNA and DNA underlie the differences in their stability and longevity. Because DNA is double-stranded, it is inherently more stable. The single-stranded structure of RNA is less stable but also more flexible and can form weak internal bonds. Additionally, most RNAs in the cell are relatively short, while DNA can be up to 250 million...
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Alternative RNA Splicing02:18

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Related Experiment Video

Updated: Feb 7, 2026

Identification of Footprints of RNA:Protein Complexes via RNA Immunoprecipitation in Tandem Followed by Sequencing RIPiT-Seq
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Sensitive and powerful single-cell RNA sequencing using mcSCRB-seq.

Johannes W Bagnoli1, Christoph Ziegenhain1,2, Aleksandar Janjic1

  • 1Anthropology & Human Genomics, Department of Biology II, Ludwig-Maximilians-University, Großhaderner Straße 2, 82152, Martinsried, Germany.

Nature Communications
|July 28, 2018
PubMed
Summary
This summary is machine-generated.

We improved single-cell RNA barcoding and sequencing (SCRB-seq) for greater sensitivity and efficiency. The new molecular crowding SCRB-seq (mcSCRB-seq) protocol enhances cDNA synthesis and amplification, advancing cellular research.

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Area of Science:

  • Molecular Biology
  • Genomics
  • Biotechnology

Background:

  • Single-cell RNA sequencing (scRNA-seq) is crucial for understanding cellular heterogeneity.
  • Existing methods like SCRB-seq offer sensitivity and flexibility but can be improved.
  • Enhancing scRNA-seq protocols is vital for broader research applications.

Purpose of the Study:

  • To systematically optimize the SCRB-seq protocol for increased sensitivity and efficiency.
  • To develop a novel, highly sensitive, and cost-effective scRNA-seq library preparation method.
  • To identify key experimental factors influencing scRNA-seq performance.

Main Methods:

  • Systematic evaluation of experimental conditions for SCRB-seq.
  • Addition of polyethylene glycol to enhance cDNA synthesis.
  • Utilization of Terra polymerase for improved cDNA amplification.
  • Development and validation of the molecular crowding SCRB-seq (mcSCRB-seq) protocol.

Main Results:

  • Polyethylene glycol significantly boosts scRNA-seq sensitivity by improving cDNA synthesis.
  • Terra polymerase leads to more even cDNA amplification, reducing sequencing needs.
  • The optimized mcSCRB-seq protocol demonstrates superior sensitivity and efficiency compared to existing methods.

Conclusions:

  • mcSCRB-seq represents a highly sensitive, efficient, and flexible scRNA-seq method.
  • Protocol optimizations can substantially improve the performance of scRNA-seq techniques.
  • This advancement facilitates deeper insights into cellular identities and processes.