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Related Concept Videos

Labeling DNA Probes03:31

Labeling DNA Probes

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DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...
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Reporter Genes02:11

Reporter Genes

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Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
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Related Experiment Video

Updated: Jun 6, 2025

Determination of In Vitro and Cellular Turn-on Kinetics for Fluorogenic RNA Aptamers
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Determination of In Vitro and Cellular Turn-on Kinetics for Fluorogenic RNA Aptamers

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Illuminating RNA through fluorescent light-up RNA aptamers.

Xin Lei1, Yuqing Xia1, Xiaochen Ma1

  • 1College of Chemistry and Life Sciences, Beijing University of Technology, Beijing, China.

Biosensors & Bioelectronics
|November 30, 2024
PubMed
Summary

Fluorescent light-up RNA aptamers (FLAPs) offer advanced RNA imaging by reducing background noise and enabling label-free visualization. This review explores FLAP development and applications for deeper insights into RNA biology.

Keywords:
FluorescenceFluorescent light-up RNA aptamers (FLAPs)RNA aptamersRNA imaging

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Area of Science:

  • Molecular Biology
  • Cell Biology
  • Biochemistry

Background:

  • Accurate RNA visualization is crucial for understanding gene regulation and cellular functions.
  • Traditional RNA imaging methods suffer from high background noise and limitations in live-cell tracking.
  • Fluorescent light-up RNA aptamers (FLAPs) present a promising alternative with enhanced fluorescence and reduced interference.

Purpose of the Study:

  • To review the development and advancements of FLAPs for RNA imaging.
  • To explore FLAP-based strategies for visualizing RNA dynamics.
  • To discuss current challenges and future directions in FLAP technology.

Main Methods:

  • Review of existing literature on FLAP development and applications.
  • Analysis of FLAP-based RNA imaging strategies.
  • Discussion of technical challenges and potential solutions.

Main Results:

  • FLAPs provide enhanced fluorescence activation and reduced background noise compared to traditional methods.
  • FLAPs enable label-free, high-resolution RNA imaging with small molecular size and customizable structures.
  • Recent advancements show increased efficacy and broader applicability of FLAPs in RNA research.

Conclusions:

  • FLAPs represent a significant advancement in RNA imaging techniques.
  • Further development of FLAPs will enhance the study of RNA biology and cellular processes.
  • FLAP technology offers new perspectives and tools for RNA research.