LONG-RANGE MAPPING OF GAPS AND TELOMERES WITH RECA-ASSISTED RESTRICTION-ENDONUCLEASE (RARE) CLEAVAGE

被引：29

作者：

FERRIN, LJ ^{[1
]}

CAMERINIOTERO, RD ^{[1
]}

机构：

[1] NIDDKD,GENET & BIOCHEM BRANCH,BETHESDA,MD 20892

来源：

NATURE GENETICS | 1994年 / 6卷 / 04期

关键词：

D O I：

10.1038/ng0494-379

中图分类号：

Q3 [遗传学];

学科分类号：

071007 ; 090102 ;

摘要：

RecA-assisted restriction endonuclease (RARE) cleavage is a method to perform sequence-specific cleavage of genomic DNA, and is useful in physical mapping studies. After making two modifications, we have applied this method to mapping targe regions of DNA in several cell types, including a notorious gap near the Huntington disease (HD) locus on chromosome 4. RARE cleavage fragments were analysed by pulsed field gel electrophoresis and Southern blotting and the distances between cleavage sites determined with accuracy. Using RARE cleavage, the gap measured was less than 60 kilobases in length. RARE cleavage is also a straightforward technique to map the distance from a marker to a telomere. The terminal 1.7 megabases of several HD and control cell lines were mapped with no large differences between cell lines in this region.

引用

页码：379 / 383

页数：5

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