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Related Concept Videos

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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.
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Related Experiment Video

Updated: Dec 22, 2025

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DNA binding fluorescent proteins as single-molecule probes.

Xuelin Jin1, Natalia Diyah Hapsari2, Seonghyun Lee1

  • 1Department of Chemistry and Interdisciplinary Program of Integrated Biotechnology, Sogang University, Seoul, 04107, Republic of Korea. jokyubong@sogang.ac.kr.

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Summary

Fluorescent protein-tagged DNA binding proteins (FP-DBPs) enable real-time visualization of DNA interactions in cells. This review explores FP-DBP design, characteristics, and applications for studying molecular dynamics and DNA visualization.

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Area of Science:

  • Molecular Biology
  • Biophysics
  • Cell Biology

Background:

  • Fluorescent proteins (FPs) are valuable tools for biological research.
  • FP-tagging enables real-time visualization of DNA binding proteins (DBPs) within living cells.
  • FP-DBPs allow direct observation of DNA binding patterns and dynamics.

Purpose of the Study:

  • To review the design and characteristics of FP-DBPs.
  • To summarize the applications of FP-DBPs in cellular processes.
  • To highlight the use of FP-DBPs in single DNA molecule visualization.

Main Methods:

  • Review of literature on FP-DBP design and characterization.
  • Analysis of FP-DBP applications in studying chromosome dynamics, DNA replication, transcription, and DNA damage/repair.
  • Focus on single-molecule visualization techniques using FP-DBPs.

Main Results:

  • FP-DBPs offer insights into DNA binding patterns and dynamics.
  • Various FP-DBPs have been developed with diverse characteristics (brightness, photostability, binding affinity).
  • FP-DBPs are applied in diverse cellular processes and single-molecule studies.

Conclusions:

  • FP-DBPs are powerful tools for studying DNA-protein interactions.
  • Further development of FP-DBPs can enhance understanding of molecular motion and DNA visualization.
  • This review provides a comprehensive overview for future FP-DBP research and applications.