Improvements to bead-based oligonucleotide ligation SNP genotyping assays
2008
Shannon E. Bruse | Michael P. Moreau | Marco A. Azaro | Ray Zimmerman | Linda M. Brzustowicz
We describe a bead-based, multiplexed, oligonucleotide ligation assay (OLA) performed on the Luminex flow cytometer. Differences between this method and those previously reported include the use of far fewer beads and the use of a universal oligonucleotide for signal detection. These innovations serve to significantly reduce the cost of the assay, while maintaining robustness and accuracy. Comparisons are made between the Luminex OLA and both pyrosequencing and direct sequencing. Experiments to assess conversion rates, call rates, and concordance across technical replicates are also presented.
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