APPLICATION OF A SUBTRACTION HYBRIDIZATION TECHNIQUE INVOLVING PHOTOACTIVATABLE BIOTIN AND ORGANIC EXTRACTION TO SOLUTION HYBRIDIZATION ANALYSIS OF GENOMIC DNA

被引：22

作者：

BARR, FG ^{[1
]}

EMANUEL, BS ^{[1
]}

机构：

[1] HOSP UNIV PENN,DEPT PATHOL & LAB MED,PHILADELPHIA,PA 19104

来源：

ANALYTICAL BIOCHEMISTRY | 1990年 / 186卷 / 02期

关键词：

D O I：

10.1016/0003-2697(90)90096-R

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

We have adapted a subtraction hybridization technique involving photoactivatable biotin, streptavidin binding, and organic extraction for solution hybridization analysis of mammalian genomic DNA. By combining maximal hybridization conditions of high salt, dextran sulfate, and formamide with successive hybridization steps and sequence enrichment by agarose gel electrophoresis, up to 97% of tracer DNA can be reproducibly driven to hybridize with photobiotinylated driver DNA. We demonstrate that the fractionation of hybridized from unhybridized sequences by this technique differs from hydroxyapatite chromatography with respect to the handling of nondenatured tracer, foldback sequences, and tracer-tracer hybrids. Strategies are presented to control the contribution of these species to the final subtracted product thereby making this technology a useful adjunct to solution hybridization approaches such as deletion cloning. © 1990.

引用

页码：369 / 373

页数：5

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