Methods for assembly of high fidelity synthetic polynucleotides
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Abstract
Disclosed are methods of manufacturing synthetic DNAs, that is, DNAs made at least in significant part by chemical synthesis of nucleic acid polymers. Also provided are methods for assembling plural DNAs in the same pool by multiplexed assembly of synthetic oligonucleotides. In exemplary embodiments, the methods involve pre-amplification of one or more oligonucleotides using “universal” primers, reduction of the error rate in oligonucleotide and/or nucleic acid products, and sequence optimization and oligonucleotides design. Also provided are low-purity arrays of nucleic acids and methods for assembling nucleic acids using oligonucleotides obtained from low-purity arrays.
201 Citations
311 Claims
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1-291. -291. (canceled)
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292. A method for assembling at least one polynucleotide construct having a predefined sequence, comprising:
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a) providing one or more nucleic acid arrays comprising a solid support and a plurality of discrete features associated with said solid support, wherein each feature independently comprises a population of construction oligonucleotides collectively having a defined consensus sequence but in which no more than 10 percent of said construction oligonucleotides of said feature have the identical sequence;
b) simultaneously or sequentially releasing construction oligonucleotides from one or more of said features to form a pool of construction oligonucleotides comprising partially overlapping sequences that define the sequence of said polynucleotide construct; and
c) providing conditions promoting;
i) hybridization of complementary, overlapping sequences of said construction oligonucleotides;
ii) ligation, chain extension, or chain extension and ligation, of hybridized construction oligonucleotides to form a polynucleotide construct;
iii) error reduction to provide a polynucleotide construct having said predetermined sequence. - View Dependent Claims (293, 294, 295, 296, 297, 298, 299, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 310)
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311. A method for assembling at least one polynucleotide construct having a predefined sequence, comprising:
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a) providing a pool of construction oligonucleotides comprising partially overlapping sequences that define the sequence of said polynucleotide construct;
wherein said pool comprises a plurality of populations of construction oligonucleotides, each population collectively having a defined consensus sequence but in which no more than 10 percent of said construction oligonucleotides in a given population have the identical sequence; and
b) providing conditions promoting;
i) hybridization of complementary, overlapping sequences of said construction oligonucleotides;
ii) ligation, chain extension, or chain extension and ligation, of hybridized construction oligonucleotides to form a polynucleotide construct;
iii) error reduction to provide a polynucleotide construct having said predetermined sequence.
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Specification