| View Larger Image | Application of probes having 2'-deoxyinosine for typing of single nucleotide polymorphisms (SNPs) using DNA microarray [An article from: Analytica Chimica Acta] | Digitalby H. Kinoshita (Author), S. Ishiwata (Author), Y. Tsuji (Author), M. Dejima (Author), Ya (Author)
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| | Binding: | Digital | | Publisher: | Elsevier |
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This digital document is a journal article from Analytica Chimica Acta, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.Description: The principle of hybridizing oligonucleotides is employed with single nucleotide polymorphisms (SNPs) typing, but that typing frequently failed. We investigated the SNPs typing of multi-alleles on a chip. Two bases adjacent to the SNPs on the immobilized oligonucleotide probes were substituted for the 2'-deoxyinosine (dI) residues. The biotinylated probes containing the partial sequence of CYP2C9, CYP2C19, GLC1A and ApoE alleles were applied to the streptavidin-embedded plasma-polymerized (PP) DNA microarrays. For the probes containing dI, up to a 2-5-fold difference in the match to a mismatch oligonucleotide fluorescence intensity was found as the probes without dI were 1.5-fold or less. According to the substitution for dI, the hybridization accuracy was enhanced, and then several single-base mismatches were detected on a chip. |
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