Proximity oligonucleotides and methods of use thereof
AssigneeSingular Genomics Systems, Inc.
InventorsMichael Lawson, Eli N. Glezer
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Abstract
Disclosed herein, inter alia, are oligonucleotides, methods, and kits useful for amplifying and detecting target nucleic acids.
Claims20
A method of generating an amplification product, said method comprising:
- a) contacting a target polynucleotide in a cell or tissue with a first oligonucleotide comprising a first target hybridization sequence, a first hybridization sequence, a barcode sequence, and a second hybridization sequence, and hybridizing the first target hybridization sequence to a first target sequence of said target polynucleotide;
- b) contacting the target polynucleotide with a second oligonucleotide comprising a second target hybridization sequence and a third hybridization sequence, and hybridizing the second target hybridization sequence to a second target sequence of said target polynucleotide;
- c) hybridizing a circularizable oligonucleotide to both said first oligonucleotide and said second oligonucleotide, wherein said circularizable oligonucleotide comprises a first sequence complementary to said first hybridization sequence, a second sequence complementary to said second hybridization sequence, and a third sequence complementary to said third hybridization sequence;
- d) extending said circularizable oligonucleotide along the barcode sequence with a polymerase to generate a complementary barcode sequence and ligating the complementary barcode sequence to said circularizable oligonucleotide, thereby generating a circular oligonucleotide;
- and
- e) amplifying the circular oligonucleotide, thereby generating an amplification product comprising multiple complements of the complementary barcode sequence.
A kit comprising a first oligonucleotide, a second oligonucleotide, a circularizable oligonucleotide, and a ligase, wherein
- said first oligonucleotide comprises a first target hybridization sequence capable of hybridizing to a first sequence of a target polynucleotide, a first hybridization sequence, a barcode sequence, and a second hybridization sequence;
- said second oligonucleotide comprises a second target hybridization sequence capable of hybridizing to a second sequence of said target polynucleotide and a third hybridization sequence;
- and
- said circularizable oligonucleotide comprises a first sequence complementary to said first hybridization sequence, a second sequence complementary to said second hybridization sequence, and a third sequence complementary to said third hybridization sequence.
The method of claim 17, wherein each of the known set of barcode sequences is associated with a target hybridization sequence from a known set of target hybridization sequences.
The kit of claim 19, wherein said second oligonucleotide does not comprise a barcode sequence.
Dependencies are inferred from the claim text.