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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...
DNA Microarrays02:34

DNA Microarrays

Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...
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...
DNA Isolation01:24

DNA Isolation

DNA isolation protocols can be fast and straightforward or complex and time-consuming depending on the type and quality of DNA required for further processing. For example, plasmid DNA extraction is a bit more complicated than genomic DNA extraction because of the need for an appropriate lysis method to separate plasmid DNA from gDNA during isolation. However, for specific applications, such as long-range DNA sequencing that require a good yield of high- quality DNA samples, we need to follow...

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DNA-affinity-purified Chip (DAP-chip) Method to Determine Gene Targets for Bacterial Two component Regulatory Systems
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Published on: July 21, 2014

A generalized probe selection method for DNA chips.

Satish Balasaheb Nimse1, Keum-Soo Song, Junghoon Kim

  • 1Institute for Applied Chemistry and Department of Chemistry, Hallym University, Chuncheon, 200-702, Korea.

Chemical Communications (Cambridge, England)
|October 7, 2011
PubMed
Summary
This summary is machine-generated.

Current DNA chip probe selection methods hinder technology development. A new generalized method optimizes probe length, melting temperatures, specificity, and binding sites for improved DNA chip applications.

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Area of Science:

  • Biotechnology
  • Molecular Biology
  • Genomics

Background:

  • Existing probe selection methods for DNA chips have limitations.
  • These limitations impede the advancement and application of DNA chip technology.

Purpose of the Study:

  • To present a generalized probe selection method for DNA chips.
  • To address the shortcomings of current probe design strategies.

Main Methods:

  • The method considers probe length.
  • It analyzes melting temperatures for optimal binding.
  • Specificity and target binding site position are key parameters.

Main Results:

  • The generalized method provides a framework for selecting effective DNA probes.
  • It allows for systematic optimization of probe characteristics.

Conclusions:

  • The developed method can enhance DNA chip performance.
  • It is expected to facilitate broader applications of DNA chip technology.