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Related Concept Videos

Labeling DNA Probes03:31

Labeling DNA Probes

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...
Protein Dynamics in Living Cells01:19

Protein Dynamics in Living Cells

Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
Fluorescent recovery after photobleaching (FRAP) is a fluorescent-protein-based detection technique used to quantify protein movement rates within the cell. This method exposes a small portion of the cell to an intense laser beam. The laser beam causes permanent photobleaching of the fluorophore-tagged proteins in the exposed region. As the bleached...
Southern Blot02:57

Southern Blot

Agarose gel electrophoresis is very useful in separating DNA fragments by size. Running a DNA ladder containing fragments of the known length alongside the sample helps determine the approximate length of the sample DNA fragments. However, additional steps are needed to verify the sequence identity of the sample DNA fragments.
Denatured DNA fragments must be transferred onto a carrier membrane from the gel to make it accessible to a probe - a small ssDNA fragment complementary to the target DNA...

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Updated: May 25, 2026

DNAzyme 10-23 - Based Nanomachines for Nucleic Acid Recognition
07:16

DNAzyme 10-23 - Based Nanomachines for Nucleic Acid Recognition

Published on: February 9, 2024

DNA-assisted protein detection technologies.

Rachel Yuan Nong1, Jijuan Gu, Spyros Darmanis

  • 1Department of Immunology, Genetics and Pathology, Science for Life Laboratory, Rudleck Lab, Uppsala University, Uppsala, Sweden.

Expert Review of Proteomics
|February 2, 2012
PubMed
Summary
This summary is machine-generated.

New DNA-equipped protein assays enhance biological insights and biomarker discovery. These advanced protein analysis tools offer lower detection limits and broader applications in research and clinical settings.

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Area of Science:

  • Biochemistry and Molecular Biology
  • Analytical Chemistry
  • Biotechnology

Background:

  • Protein assays are crucial for understanding biological processes and identifying biomarkers.
  • Conventional methods face limitations in sensitivity and scope.
  • Emerging techniques integrate nucleic acid detection for enhanced protein analysis.

Purpose of the Study:

  • To review novel approaches in protein assay development.
  • To highlight the advantages of DNA-equipped protein-binding reagents.
  • To discuss the impact on research and clinical diagnostics.

Main Methods:

  • Review of literature on DNA-hybridized protein-binding reagents.
  • Analysis of methods for protein detection using nucleic acid amplification.
  • Comparison of performance metrics like detection thresholds and multiplexing capabilities.

Main Results:

  • DNA-equipped reagents significantly lower detection thresholds for proteins.
  • These methods enable improved multiplexing for simultaneous analysis of multiple proteins.
  • The range of analyzable biomolecules is extended, enhancing assay versatility.

Conclusions:

  • DNA-enhanced protein assays represent a significant advancement in biological and clinical analysis.
  • These techniques offer improved sensitivity, multiplexing, and biomolecule range.
  • The integration of nucleic acid detection promises to revolutionize protein biomarker discovery and diagnostics.