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Related Concept Videos

Real Time RT-PCR02:57

Real Time RT-PCR

Real-time reverse transcription-polymerase chain reaction, or Real-time RT-PCR, is an analytical tool used to determine the expression level of target genes. The method involves converting mRNA to complementary DNA with the help of an enzyme known as reverse transcriptase, followed by the PCR amplification of the cDNA. These two processes can be performed simultaneously in a single tube or separately as a two-step reaction.
The real-time quantification of the number of amplified products is...
PCR - Polymerase Chain Reaction01:32

PCR - Polymerase Chain Reaction

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PCR01:32

PCR

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Updated: May 26, 2026

Isolation and Quantification of Axonal mRNAs Using Porous Membrane Inserts and RTddPCR
07:06

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Published on: February 6, 2026

Poly(T) adaptor RT-PCR.

Rui Shi1, Ying-Husan Sun, Xing-Hai Zhang

  • 1Forest Biotechnology Group, Department of Forestry and Environmental Resources, North Carolina State University, Raleigh, NC, USA.

Methods in Molecular Biology (Clifton, N.J.)
|December 7, 2011
PubMed
Summary
This summary is machine-generated.

Quantifying microRNAs (miRNAs) is challenging due to their small size. This study introduces a novel poly(T) adaptor reverse transcription PCR (RT-PCR) method for accurate miRNA detection and quantification.

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Area of Science:

  • Molecular Biology
  • Genetics
  • Biochemistry

Background:

  • Reverse transcription PCR (RT-PCR) is crucial for RNA analysis.
  • MicroRNAs (miRNAs) are small regulatory RNAs vital in biological processes.
  • Conventional RT-PCR struggles with the detection and quantification of small miRNAs.

Purpose of the Study:

  • To develop a specialized RT-PCR method for accurate miRNA quantification.
  • To overcome the limitations of standard techniques in detecting small RNA molecules.

Main Methods:

  • A poly(T) adaptor RT-PCR method was developed.
  • Total RNAs, including miRNAs, undergo poly(A) tailing.
  • miRNAs are reverse transcribed into cDNA using a poly(T) adaptor primer.
  • cDNA is amplified using miRNA-specific and universal adaptor primers.
  • Quantification is achieved through real-time or end-point detection.

Main Results:

  • The described method enables the specific detection and quantification of miRNAs.
  • PCR amplicons can be sequenced for gene expression validation.
  • The technique enhances the sensitivity and accuracy of miRNA analysis.

Conclusions:

  • The poly(T) adaptor RT-PCR method offers a reliable approach for quantifying miRNAs.
  • This technique facilitates better understanding of miRNA roles in biological systems.
  • It provides a valuable tool for molecular biology research involving small RNAs.