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Cot analysis
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Cot analysis : ウィキペディア英語版
Cot analysis

C0t analysis, a technique based on the principles of DNA reassociation kinetics, is a biochemical technique that measures how much repetitive DNA is in a DNA sample such as a genome. It is used to study genome structure and organization and has also been used to simplify the sequencing of genomes that contain large amounts of repetitive sequence.
==Procedure==
The procedure involves heating a sample of genomic DNA until it denatures into the single stranded-form, and then slowly cooling it, so the strands can pair back together. While the sample is cooling, measurements are taken of how much of the DNA is base paired at each temperature.
The amount of single and double-stranded DNA is measured by rapidly diluting the sample, which slows reassociation, and then binding the DNA to a hydroxylapatite column. The column is first washed with a low concentration of sodium phosphate buffer, which elutes the single-stranded DNA, and then with high concentrations of phosphate, which elutes the double stranded DNA. The amount of DNA in these two solutions is then measured using a spectrophotometer.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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