Method of immobilizing nucleic acid on a solid surface for use in nucleic acid hybridization assays
First Claim
1. A method of immobilizing nucleic acid to a solid surface having free aldehyde groups comprising the steps of:
- (a) providing a modified nucleic acid strand comprising a variable portion and an anchor portion wherein said variable portion comprises a nucleotide sequence having a selected base sequence and said anchor portion comprises from two to about 10 nucleotide bases modified with a primary amine function or nucleotide base equivalents having a primary amine function; and
(b) reacting the primary amine functions of said anchor portion of said modified nucleic acid strand with the free aldehyde groups of said solid surface in a preselected pattern in the presence of a reducing agent to form complexes of said modified nucleic acid strand and at least a portion of said free aldehyde groups, such that said modified nucleic acid strand is attached to said solid surface through the primary strand functions of said anchor portion.
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Abstract
Methods of immobilizing nucleic acid on a solid surface for us in nucleic acid hybridization assays is disclosed. The methods of the invention comprise reacting a modified nucleic acid strand comprising a variable portion and an anchor portion wherein the variable portion comprises a nucleotide sequence having a selected base sequence and the anchor portion comprises at least one nucleotide base modified with a primary amine function or nucleotide base equivalent having a primary amine function and reacting the modified nucleic acid strand with a free aldehyde group of the solid surface in the presence of a reducing agent to form complexes of the modified nucleic acid strand and at least a portion of the free aldehyde groups on the solid surface.
145 Citations
22 Claims
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1. A method of immobilizing nucleic acid to a solid surface having free aldehyde groups comprising the steps of:
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(a) providing a modified nucleic acid strand comprising a variable portion and an anchor portion wherein said variable portion comprises a nucleotide sequence having a selected base sequence and said anchor portion comprises from two to about 10 nucleotide bases modified with a primary amine function or nucleotide base equivalents having a primary amine function; and (b) reacting the primary amine functions of said anchor portion of said modified nucleic acid strand with the free aldehyde groups of said solid surface in a preselected pattern in the presence of a reducing agent to form complexes of said modified nucleic acid strand and at least a portion of said free aldehyde groups, such that said modified nucleic acid strand is attached to said solid surface through the primary strand functions of said anchor portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification