Nucleotide Sequence Identification Method
    3.
    发明公开

    公开(公告)号:US20240344125A1

    公开(公告)日:2024-10-17

    申请号:US18685199

    申请日:2021-09-06

    IPC分类号: C12Q1/6874 C12Q1/6844

    CPC分类号: C12Q1/6874 C12Q1/6844

    摘要: Provided is a nucleotide sequence identification method for analyzing a double-stranded DNA in one reaction system while reducing cost and labor. A method for identifying a nucleotide sequence in a target polynucleotide complementary pair constituting a double strand includes: a step of identifying, by using a first primer having a target recognition site configured to form a complementary pair with a part of one target polynucleotide of the target polynucleotide complementary pair, a nucleotide sequence in the one target polynucleotide; and a step of identifying, by using a second primer having a target recognition site configured to form a complementary pair with a part of the other target polynucleotide of the target polynucleotide complementary pair and a reaction stop site configured to stop a nucleotide extension reaction, a nucleotide sequence in the other target polynucleotide, in which a mobility of a second reaction product obtained by the second primer performing extension is smaller than a mobility of a first reaction product obtained by the first primer performing extension.

    METHOD FOR MAKING A PHYSICAL MAP OF A POPULATION OF BARCODED PARTICLES

    公开(公告)号:US20240336959A1

    公开(公告)日:2024-10-10

    申请号:US18034595

    申请日:2021-12-17

    摘要: Provided herein is a method for making a physical map of a population of barcoded particles. In some embodiments, the method may involve: producing a complex comprising: i. a population of barcoded particles, wherein the barcoded particles are uniquely barcoded by surface-tethered oligonucleotides that have unique particle identifier sequences; and ii. a population of bridging moieties that comprises oligonucleotide sequences; wherein the bridging moieties are hybridized directly or indirectly to complementary sites in the surface-tethered oligonucleotides; performing a ligation, polymerization and/or a gap-fill/ligation reaction on the complex, thereby producing reaction products that comprise pairs of unique particle identifier sequences or complements thereof from adjacent barcoded particles: sequencing the reaction products, analyzing the sequences to making one or more physical maps of the barcoded particles. Systems for practicing the method are also provided.

    Bi-directional in situ analysis
    8.
    发明授权

    公开(公告)号:US12110548B2

    公开(公告)日:2024-10-08

    申请号:US17165802

    申请日:2021-02-02

    IPC分类号: C12Q1/6874 C12Q1/6876

    CPC分类号: C12Q1/6874 C12Q1/6876

    摘要: In some aspects, provided herein are methods for analyzing a nucleic acid comprising first and second regions of interest flanking an adaptor region, comprising hybridizing an anchor to the adaptor region, analyzing the first region of interest from one end of the anchor using probe ligation (e.g., sequencing-by-ligation), and binding a polymerase to the other end of the anchor and optionally incorporating a nucleotide and/or analog thereof into the anchor by the polymerase using the second region of interest or a probe bound thereto as a template. In some embodiments, the second region of interest is used as a template for sequencing-by-synthesis. In some embodiments, spatially resolved detections of analytes are performed at a cellular or sub-cellular resolution which involve correlating signals associated with analytes with specific spatial locations in a biological sample.

    SINGLE CELL CHROMATIN IMMUNOPRECIPITATION SEQUENCING ASSAY

    公开(公告)号:US20240327897A1

    公开(公告)日:2024-10-03

    申请号:US18589293

    申请日:2024-02-27

    发明人: Hye-Won Song

    摘要: Disclosed herein include systems, methods, kits, and compositions for labeling nuclear target-associated DNA in a cell. Some embodiments provide digestion compositions comprising a DNA digestion enzyme and a binding reagent capable of specifically binding to the nuclear target. Some embodiments provide conjugates comprising a transposome and a binding reagent capable of specifically binding to a nuclear target. The transposome can comprise a transposase (e.g., Tn5 transposase), a first adaptor having a first 5′ overhang, and a second adaptor having a second 5′ overhang. The methods can comprise contacting a permeabilized cell comprising a nuclear target associated with dsDNA, such as genomic DNA (gDNA), with the compositions provided herein to generate a plurality of nuclear target-associated dsDNA fragments (e.g., nuclear target-associated gDNA fragments) each comprising the one or two single-stranded overhangs.