Covalent attachment of unmodified nucleic acids to silanized solid phase surfaces
First Claim
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1. A method for immobilizing an unmodified nucleic acid molecule to a solid phase, which comprises the steps of:
- (A) coating said solid phase with a silane and allowing said silane-coated solid phase to cure; and
(B) coupling unmodified nucleic acid molecules having either a terminal 3′
OH or a terminal 5′
OH to said silane-coated solid phase.
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Abstract
The invention relates to a simple, cost effective method for immobilizing synthetic nucleic acid molecules onto a solid support The invention further concerns the use of such immobilized molecules in nucleic acid hybridization assays, sequencing by hybridization assays, and genetic analyses and combinatorial analyses involving nucleic acids or proteins for screening applications.
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Citations
27 Claims
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1. A method for immobilizing an unmodified nucleic acid molecule to a solid phase, which comprises the steps of:
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(A) coating said solid phase with a silane and allowing said silane-coated solid phase to cure; and
(B) coupling unmodified nucleic acid molecules having either a terminal 3′
OH or a terminal 5′
OH to said silane-coated solid phase.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
(C) capturing from a solution at least one strand of a specific polynucleotide analyte by hybridization to said immobilized polynucleotide; and
(D) detecting the presence of the captured analyte.
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23. The method of claim 22, wherein step C further comprises the steps of:
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(C′
(1)) amplifying a specific region of a specific genome using a polymerase chain reaction, said region having a sequence complementary to said immobilized polynucleotide; and
(C′
(2)) capturing from solution at least one strand of said amplification product by hybridization to said immobilized polynucleotide; and
wherein step D further comprises the step of(D′
) detecting the presence of the captured amplification product.
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24. The method of claim 23, wherein said method further comprises the steps of:
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(E) incubating a sample of nucleic acid of a target organism, containing a single nucleotide polymorphism in the presence of said immobilized polynucleotide and at least one dideoxynucleotide derivative, under conditions sufficient to permit a polymerase mediated, template-dependent extension of said immobilized polynucleotide, said extension causing the incorporation of a single dideoxynucleotide to the 3′
-terminus of said immobilized polynucleotide, said single dideoxynucleotide being complementary to the single nucleotide of the polymorphic site of said polymorphism;
(F) permitting said template-dependent extension of said immobilized polynucleotide molecule, and said incorporation of said single dideoxynucleotide; and
(G) determining the identity of the nucleotide incorporated into said polymorphic site, said identified nucleotide being complementary to said nucleotide of said polymorphic site.
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25. The method of claim 19, wherein said polystyrene support is a microwell plate.
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26. The method of claim 19, wherein said polystyrene support is an array designed to fit into a microwell plate.
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27. The method of claim 1, wherein said coating step is by means of an aerosol, a vaporization means or any other mechanical means.
Specification