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Patent
Illumina | Date: 2016-12-28

Embodiments disclosed herein provide methods for constructing a DNA profile comprising: providing a nucleic acid sample, amplifying the nucleic acid sample with a plurality of primers that specifically hybridize to at least one target sequence comprising a SNP and at least one target sequence comprising a tandem repeat, and determining the genotypes of the at least one SNP and at least one tandem repeat in the amplification products, thereby constructing the DNA profile of the nucleic acid sample. Embodiments disclosed herein further provide a plurality of primers that specifically hybridize to at least one short target sequence and at least one long target sequence in a nucleic acid sample, wherein amplifying the nucleic acid sample using the plurality of primers in a single reaction results in a short amplification product and a long amplification product, wherein each of the plurality of primers comprises one or more tag sequences.


Patent
Illumina | Date: 2017-04-12

The present invention relates to methods for preparing samples for subsequent nucleic acid (e.g. DNA) amplification, which methods are simpler to perform than existing methods.


A method for controlling a focus of an optical system. The method includes providing a pair of incident light beams to a conjugate lens. The incident light beams are directed by the lens to converge toward a focal region. The method also includes reflecting the incident light beams with an object positioned proximate to the focal region. The reflected light beams return to and propagate through the lens. The method also includes determining relative separate measured between the reflected light beams and determining a degree-of-focus of the optical system with respect to the sample based upon the relative separation.


Patent
Illumina | Date: 2017-02-22

The invention provides methods for controlling the density of different molecular species on the surface of a solid support. A first mixture of different molecular species is attached to a solid support under conditions to attach each species at a desired density, thereby producing a derivatized support having attached capture molecules. The derivatized support is treated with a second mixture of different molecular species, wherein different molecular species in the second mixture bind specifically to the different capture molecules attached to the solid support. One or more of the capture molecules can be reversibly modified such that the capture molecules have a different activity before and after the second mixture of molecular species are attached. In particular embodiments, the different molecular species are nucleic acids that are reversibly modified to have different activity in an amplification reaction.


Patent
Illumina | Date: 2017-03-29

The invention provides a nucleotide or nucleoside having a base attached to a detectable label via a cleavable linker, characterised in that the cleavable linker contains a moiety selected from the group comprising:_(1-10) substituted or unsubstituted alkyl group, Y is selected from the group comprising O, S, NH and N(allyl), T is hydrogen or a C_(1-10) substituted or unsubstituted alkyl group and * indicates where the moiety is connected to the remainder of the nucleotide or nucleoside).


Patent
Illumina | Date: 2017-03-22

A method for synthesizing a nucleic acid includes synthesizing one or more nucleic acid fragments on a substrate. The synthesized one or more nucleic acid fragments may be amplified on the substrate. The method also includes sequencing the synthesized or amplified one or more nucleic acid fragments on the substrate. The sequencing may provide feedback to designs of the one or more nucleic acid fragments. The method further includes harvesting the synthesized or amplified one or more nucleic acid fragments based on sequencing. The synthesized or amplified one or more nucleic acid fragments may be assembled to generate a target nucleic acid.


Presented herein are methods and compositions for multiplexed single cell gene expression analysis. Some methods and compositions include the use of droplets and/or beads bearing unique barcodes such as unique molecular barcodes (UMI).


Systems and methods for conducting designated reactions utilizing a base instrument and a removable cartridge. The removable cartridge includes a fluidic network that receives and fluidically directs a biological sample to conduct the designated reactions. The removable cartridge also includes a flow-control valve that is operably coupled to the fluidic network and is movable relative to the fluidic network to control flow of the biological sample therethrough. The removable cartridge is configured to separably engage a base instrument. The base instrument includes a valve actuator that engages the flow-control valve of the removable cartridge. A detection assembly held by at least one of the removable cartridge or the base instrument may be used to detect the designated reactions.


Methods for capturing and amplifying target polynucleotides on a solid surface, in particular in a well in a microarray, wherein the microarray may comprise a) a substrate comprising at least one well, a surface surrounding the well and an inner well surface; b) a first layer covering the inner well surface and comprising at least one first capture primer pair; and c) a second layer covering the first layer and the surface surrounding the well. Alternatively, the microarray may comprise a) a substrate comprising at least one well, a surface surrounding the well and an inner well surface; and b) a layer covering the inner well surface and comprising at least one first capture primer pair and at least one second capture primer pair. In particular kinetic exclusion amplification is used in creating monoclonal populations of the nucleic acids in the wells. The application also discloses a method for modifying an immobilized capture primer comprising: a) contacting a substrate comprising a plurality of immobilized capture primers with a plurality of template nucleic acids to produce one or more immobilized template nucleic acids,wherein the plurality of immobilized capture primers comprises a first plurality of primers comprising a 3-terminal universal capture region Y, e.g. primer P5, and a second plurality of primers comprising a 3-terminal universal capture region Z, e.g. primer P7; and wherein each template nucleic acid is flanked by a 5-terminal and a 3-terminal universal capture region Y or Z and comprises one or more, e.g. SapI, restriction sites and a target-specific capture region between the one or more restriction sites and the 3-terminal universal capture region; and b) extending one or more immobilized capture primer. Finally, the application discloses a method for modifying an immobilized capture primer comprising: a) contacting a substrate comprising a plurality of immobilized capture primers with a plurality of different seed nucleic acids to produce a plurality of different immobilized seed nucleic acids; b) extending two or more of the immobilized capture primers to produce a plurality of different immobilized extension products complementary to two or more of the plurality of different immobilized seed nucleic acids; and c) activating one immobilized extension product of the plurality of different immobilized extension products, to form an activated capture primer.


Haplotype-resolved genome sequencing enables the accurate interpretation of medically relevant genetic variation, deep inferences regarding population history and non-invasive prediction of fetal genomes. We describe an approach for genome-wide haplotyping based on contiguity-preserving transposition (CPT-seq) and combinatorial indexing. Tn5 transposition is used to modify DNA with adaptor and index sequences while preserving contiguity. After DNA dilution and compartmentalization, the transposase is removed, resolving the DNA into individually indexed libraries. The libraries in each compartment, enriched for neighboring genomic elements, are further indexed via PCR. Combinatorial 96-plex indexing at both the transposition and PCR stage enables the construction of phased synthetic reads from each of the nearly 10,000 'virtual compartments'. We demonstrate the feasibility of this method by assembling >95% of the heterozygous variants in a human genome into long, accurate haplotype blocks (N50 = 1.4–2.3 Mb). The rapid, scalable and cost-effective workflow could enable haplotype resolution to become routine in human genome sequencing. © 2014 Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved.

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