Methods for attaching polynucleotides to supports
First Claim
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1. A method for a hybridization assay comprising the steps of:
- attaching a first single-stranded polynucleotide to a support so that the first single-stranded polynucleotide has a first free end;
hybridizing a first portion of a second single-stranded polynucleotide with the first single-stranded polynucleotide so that the second single-stranded polynucleotide has a free single-stranded end;
connecting by hybridization a third single-stranded polynucleotide to a second portion of the second single-stranded polynucleotide, separate and distinct from the first portion of the second single-stranded polynucleotide, so that the third single-stranded polynucleotide has a first end adjacent the first end of the first single-stranded polynucleotide;
ligating the first end of the first single-stranded polynucleotide to the first end of the third single-stranded polynucleotide to form a probe polynucleotide bound to the support;
denaturing the second single-stranded polynucleotide from the probe polynucleotide; and
immobilizing a fourth polynucleotide constituting a target analyte by hybridization to the probe polynucleotide.
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Abstract
A probe is attached to a stock support to which is bound a single-stranded polynucleotide by hybridizing both the probe and the bound polynucleotide to a connecting strand with which they are both complementary and then ligating an end of the bound polynucleotide and the probe. After denaturation, the probe remains attached to the support by way of the bound polynucleotide. A target polynucleotide is then hybridized with the support-bound probe and with a labelled probe to provide a detectable hybridization complex.
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3 Claims
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1. A method for a hybridization assay comprising the steps of:
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attaching a first single-stranded polynucleotide to a support so that the first single-stranded polynucleotide has a first free end; hybridizing a first portion of a second single-stranded polynucleotide with the first single-stranded polynucleotide so that the second single-stranded polynucleotide has a free single-stranded end; connecting by hybridization a third single-stranded polynucleotide to a second portion of the second single-stranded polynucleotide, separate and distinct from the first portion of the second single-stranded polynucleotide, so that the third single-stranded polynucleotide has a first end adjacent the first end of the first single-stranded polynucleotide; ligating the first end of the first single-stranded polynucleotide to the first end of the third single-stranded polynucleotide to form a probe polynucleotide bound to the support; denaturing the second single-stranded polynucleotide from the probe polynucleotide; and immobilizing a fourth polynucleotide constituting a target analyte by hybridization to the probe polynucleotide. - View Dependent Claims (2, 3)
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Specification