DNA reassociation using oscillating phenol emulsions.

Abstract:

:Reassociating double-stranded DNA from single-stranded components is necessary for many molecular genetics experiments. The choice of a DNA reassociation method is dictated by the complexity of the starting material. Reassociation of simple oligomers needs only slow cooling in an aqueous environment, whereas reannealing the many single-stranded DNAs of complex genomic mixtures requires both a phenol emulsion to accelerate DNA reassociation and dedicated equipment to maintain the emulsion. We present a method that is equally suitable for reassociating either simple or complex DNA mixtures. The Oscillating Phenol Emulsion Reassociation Technique (OsPERT) was primarily developed to prepare heteroduplex DNA from alkali-denatured high molecular weight human genomic DNA samples in which hundreds of thousands of fragments need to be reannealed, but the simplicity of the technique makes it practical for less demanding DNA reassociation applications.

journal_name

Genomics

journal_title

Genomics

authors

Bruzel A,Cheung VG

doi

10.1016/j.ygeno.2005.09.021

subject

Has Abstract

pub_date

2006-02-01 00:00:00

pages

286-9

issue

2

eissn

0888-7543

issn

1089-8646

pii

S0888-7543(05)00289-2

journal_volume

87

pub_type

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