Systems and methods for nucleic acid sequencing
First Claim
1. A method, comprising:
- providing a first microfluidic droplet containing a nucleic acid probe and at least three distinguishable identification elements, wherein each of the at least three distinguishable identification elements is associated with a different oligonucleotide sequence comprising at least one universal nucleic acid residue;
providing a second microfluidic droplet comprising a target nucleic acid; and
fusing at least some of the fluid in the first fluidic droplet and at least some of the fluid in the second microfluidic droplet to form a fused droplet.
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Abstract
The present invention relates to systems and methods for sequencing nucleic acids, including sequencing nucleic acids in fluidic droplets. In one set of embodiments, the method employs sequencing by hybridization using droplets such as microfluidic droplets. In some embodiments, droplets are formed which include a target nucleic acid, a nucleic acid probe, and at least one identification element, such as a fluorescent particle. The nucleic acid probes that hybridize to the target nucleic acid are determined, in some instances, by determining the at least one identification element. The nucleic acid probes that hybridize to the target nucleic acid may be used to determine the sequence of the target nucleic acid. In certain instances, the microfluidic droplets are provided with reagents that modify the nucleic acid probe. In some cases, a droplet, such as those described above, is deformed such that the components of the droplets individually pass a target area.
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Citations
20 Claims
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1. A method, comprising:
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providing a first microfluidic droplet containing a nucleic acid probe and at least three distinguishable identification elements, wherein each of the at least three distinguishable identification elements is associated with a different oligonucleotide sequence comprising at least one universal nucleic acid residue; providing a second microfluidic droplet comprising a target nucleic acid; and fusing at least some of the fluid in the first fluidic droplet and at least some of the fluid in the second microfluidic droplet to form a fused droplet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method, comprising:
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providing a first microfluidic droplet containing a nucleic acid probe and at least three distinguishable identification elements, wherein each distinguishable identification element is associated with a different oligonucleotide sequence; providing a second microfluidic droplet comprising a target nucleic acid; fusing at least some of the fluid in the first fluidic droplet and at least some of the fluid in the second microfluidic droplet to form a fused droplet; and ligating the nucleic acid probe to one of the different oligonucleotide sequences associated with one of the at least three distinguishable identification elements. - View Dependent Claims (17, 18, 19, 20)
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Specification