Oligonucleotide arrays and their use for sorting, isolating, sequencing, and manipulating nucleic acids
First Claim
1. In a method wherein first and second nucleic acid strands are ligated to each other at their termini in order to form a recombinant product, the improvement comprisinga) providing an array of immobilized oligonucleotides comprising predetermined areas on a surface of a solid support, each area having immobilized thereon copies of an oligonucleotide, b) hybridizing to said immobilized oligonucleotides first single-stranded terminal regions of first nucleic acid strands to be ligated, and c) ligating to the hybridized first termini of said hybridized first strands to said second nucleic acid strands.
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Abstract
Ligation methods for manipulating nucleic acid stands and oligonucleotides utilizing hybridization arrays of immobilized oligonucleotides. The oligonucleotide arrays may be plain or sectioned, comprehensive or non-comprehensive. The immobilized oligonucleotides may in some cases be binary oligonucleotides having constant as well as variable segments. Some embodiments include amplification of ligated products.
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Citations
32 Claims
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1. In a method wherein first and second nucleic acid strands are ligated to each other at their termini in order to form a recombinant product, the improvement comprising
a) providing an array of immobilized oligonucleotides comprising predetermined areas on a surface of a solid support, each area having immobilized thereon copies of an oligonucleotide, b) hybridizing to said immobilized oligonucleotides first single-stranded terminal regions of first nucleic acid strands to be ligated, and c) ligating to the hybridized first termini of said hybridized first strands to said second nucleic acid strands.
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21. A method of increasing the lengths of hybrids formed between nucleic acid strands and immobilized oligonucleotides in an array of immobilized oligonucleotides of different sequences, which hybrids have at least one single-stranded overhang that is a 3′
- extension, comprising the steps of annealing to the overhang an extender oligonucleotide prepared by hybridizing a primer to the overhang and extending the primer with a DNA polymerase, and enzymatically ligating the extender to the hybrid if it is annealed immediately adjacent to the hybrid.
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22. A process for ligating on an array of first, immobilized oligonucleotides of different sequences comprising the steps of
(a) incubating at least one nucleic acid strand with said immobilized oligonucleotides to form at least one hybrid having at least one single-stranded overhang comprising a 3′ - extension,
(b) annealing to the overhangs a second oligonucleotide prepared by hybridizing a primer to the at least one overhang and extending the primer with a DNA polymerase, and (c) enzymatically ligating the second oligonucleotides to that at least one hybrid if it is annealed immediately adjacent thereto, thereby forming at least one hybrid of increased length.
- extension,
- 23. A method of increasing the lengths of hybrids formed between nucleic acid strands of undetermined sequence in a sample and immobilized oligonucleotides in an array of immobilized oligonucleotides of different sequences, which hybrids have at least one single-stranded overhang, comprising the steps of annealing an extender oligonucleotide to the overhang and enzymatically ligating it to the hybrid if it is annealed immediately adjacent to the hybrid.
- 25. A method of increasing the lengths of hybrids formed between nucleic acid strands and immobilized oligonucleotides in an array of immobilized binary oligonucleotides having different sequences and having a constant segment adjacent to a free-end variable segment, which hybrids have at least one single-stranded overhang, comprising the steps of annealing to the overhang an extender oligonucleotide that is hybridized to, and covers at least a part of, said constant segment, and enzymatically ligating it to the hybrid if it is annealed immediately adjacent to the hybrid.
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28. A target-dependent process for ligating on an array of first, immobilized oligonucleotides of different sequences comprising the steps of
(a) incubating a sample containing at least one nucleic acid strand of undetermined sequence with said immobilized oligonucleotides to form at least one hybrid having at least one single-stranded overhang, (b) annealing second oligonucleotides to the overhangs, and (c) enzymatically ligating the second oligonucleotides to the hybrids if they are annealed immediately adjacent thereto, thereby forming hybrids of increased length.
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31. A method for introducing a plurality of site directed mutations into different copies of a parent nucleic acid strand on a sectioned oligonucleotide array using different-length partial copies of said parent strand, said copies corresponding to regions of the parent nucleic acid strand adjacent to the location of site directed mutations, comprising the steps of
a) separately ligating said partial copies to free termini of immobilized oligonucleotides in said oligonucleotide array to obtain mutated partial copies of said strand, said oligonucleotide array comprising an array of predetermined areas on the surface of said support, each area having therein a different immobilized oligonucleotide having a sequence adapted to introduce a sequence containing a site directed mutation to a partial copy added to that area; - and
b) using the mutated partial copies to generate nucleic acid strands that are full-length mutant copies of the parent strand containing the site directed mutations. - View Dependent Claims (32)
(i) hybridizing a complementary copy of each mutated partial copy to a template having a sequence complementary to the remaining terminal portion of the parent nucleic acid strand which is not contained in said partial copy; - and
(ii) carrying out a polymerase chain reaction, a ligation reaction or both a polymerase chain reaction and a ligation reaction to join the remaining terminal portion of the parent nucleic acid strand to the mutated partial copy.
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Specification