×

Sequencing by structure assembly

  • US 10,501,791 B2
  • Filed: 10/12/2012
  • Issued: 12/10/2019
  • Est. Priority Date: 10/14/2011
  • Status: Active Grant
First Claim
Patent Images

1. A method for identifying two particular nucleotides at different positions in a target nucleic acid sequence of a target polynucleotide, comprising:

  • (a) hybridizing a sequencing primer to a single stranded nucleic acid template derived from said target polynucleotide, wherein said single stranded nucleic acid template is immobilized to a support, and wherein said single stranded nucleic acid template comprises said target nucleic acid sequence;

    (b) hybridizing an oligonucleotide probe comprising (i) a template hybridizing nucleic acid sequence having a sequence that is complementary with said target nucleic acid sequence, and (ii) a template nonhybridizing nucleic acid structure that does not have a sequence that is complementary with said target nucleic acid sequence, to said single stranded nucleic acid template, thereby forming a hybridized complex comprising said single stranded nucleic acid template, said sequencing primer, and said oligonucleotide probe;

    (c) on said hybridized complex, ligating said template hybridizing nucleic acid sequence of said oligonucleotide probe to said sequencing primer, thereby forming an extended hybridized sequence,wherein said template nonhybridizing nucleic acid structure is attached to said template hybridizing nucleic acid sequence of said oligonucleotide probe, andwherein said template nonhybridizing nucleic acid structure comprises a plurality of probe hybridization sites comprising a plurality of pre-determined sequences, wherein each of the probe hybridization sites corresponds to one of specific nucleotides at one of specific positions of said oligonucleotide probe and the specific nucleotides are fully complementary to the target nucleic acid sequence;

    (d) subsequent to step (c), detecting a hybridization between a plurality of barcode probes and said plurality of pre-determined sequences on said hybridized complex wherein said plurality of barcode probes comprises a first set of barcode probes and a second set of barcode probes, and wherein said detecting a hybridization between a plurality of barcode probes and said plurality of pre-determined sequences comprises (i) hybridizing a first barcode probe from said first set of barcode probes to a first pre-determined sequence of said plurality of pre-determined sequences, (ii) removing said first set of barcode probes unhybridized to the first pre-determined sequence, (iii) identifying the hybridization between said first barcode probe and the first pre-determined sequence by detecting a detectable moiety of said first barcode probe, (iv) removing said first barcode probe hybridized to said first pre-determined sequence from said first pre-determined sequence, (v) hybridizing a second barcode probe from said second set of barcode probes to a second pre-determined sequence of said plurality of pre-determined sequences, and (vi) identifying the hybridization between said second barcode probe and the second pre-determined sequence by detecting a detectable moiety of said second barcode probe; and

    (e) determining identities of two of the specific nucleotides in the specific positions of said oligonucleotide probe based on hybridization results from step (d), thereby identifying the two particular nucleotides at the different positions in said target nucleic acid sequence of said target polynucleotide by the two of the specific nucleotides in the specific positions of said oligonucleotide probe.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×