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. 1994 Oct 25;22(21):4381–4385. doi: 10.1093/nar/22.21.4381

Differential cDNA cloning by enzymatic degrading subtraction (EDS).

J Zeng 1, R A Gorski 1, D Hamer 1
PMCID: PMC308470  PMID: 7971268

Abstract

We describe a new method, called enzymatic degrading subtraction (EDS), for the construction of subtractive libraries from PCR amplified cDNA. The novel features of this method are that i) the tester DNA is blocked by thionucleotide incorporation; ii) the rate of hybridization is accelerated by phenol-emulsion reassociation; and iii) the driver cDNA and hybrid molecules are enzymatically removed by digestion with exonucleases III and VII rather than by physical partitioning. We demonstrate the utility of EDS by constructing a subtractive library enriched for cDNAs expressed in adult but not in embryonic rat brains.

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Selected References

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