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Novel technology detects human DNA mutations

gous (i.e., both are mutant or normal) or heterozygous (i.e., one is mutant, one is normal) ?the most critical step in correlating the SNP with a disease or drug sensitivity. To do so, Nanosphere scientists employ a two-step process called ClearReadTM technology. This method sandwiches a target DNA SNP segment between two oligonucleotide sequences to greatly increase detection specificity and sensitivity. One segment identifies any mutations in the DNA and the probe, a highly sensitive gold nanoparticle, creates a strong signal accurately indicating the presence of a specific target SNP. Proof of principle, reproducibility, and the robust, simple and rapid characteristics of this technology were demonstrated with unamplified DNA samples representing all possible forms of three genes implicated in hypercoagulation disorders. Related : Nanosphere Inc. Technology
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Source:Eurekalert


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