Quality control methods for arrayed oligonucleotides
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United States of America Patent
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Aug 13, 2013
Grant Date -
Jun 4, 2009
app pub date -
Jul 27, 2006
filing date -
Aug 10, 2005
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Abstract
We disclose quality controls methods that allow quick and accurate verification of a test oligonucleotide deposited on a solid support. It is especially useful for the verification of oligonucleotides representing alleles of a multi-allelic locus. It employs single base extension, with labeled dideoxynucleotides, to locate and verify the identity of test oligonucleotides. This approach involves synthesizing a complement probe oligonucleotide for each oligonucleotide being tested. Probe oligonucleotides are optionally grouped. They are then hybridized to test oligonucleotides, and the hybridized pair is subject to single base extension and detection. It requires the presence of one unique base, either in the last two bases at the free hanging end of the test oligonucleotide—as opposed to the end anchored to the solid support surface, or in the last two bases at one end of the probe oligonucleotide.
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