METHODS FOR DETECTING NUCLEIC ACID FRAGMENTS

    公开(公告)号:EP3049539B1

    公开(公告)日:2018-09-05

    申请号:EP14850060.6

    申请日:2014-09-25

    Abstract: Provided are methods for detecting and analyzing polynucleotides in a biological sample or sample derived therefrom for example, using a synthetic template polynucleotide. In some aspects, a target polynucleotide in the sample hybridizes to the template polynucleotide and is extended by a polymerase, generating an extended target polynucleotide. In some examples, the extended target polynucleotide is amplified, for example, by polymerase chain reaction, and sequences of the target polynucleotide determined, for example, by priming in the region of the extended target polynucleotide generated by extension and sequencing towards the region having identity to the target polynucleotide. In some aspects, the target polynucleotide is thereby detected in the sample and its sequence identified. In some aspects, the provided methods can be used to capture polynucleotide fragments in a biological sample, for example, plasma, and determine respective biomarkers they carry, for example, for cancer diagnosis and prognosis.

    A NOVEL METHOD FOR THE PREPARATION OF BAR-CODED PRIMER SETS

    公开(公告)号:EP3359683A1

    公开(公告)日:2018-08-15

    申请号:EP16775753.3

    申请日:2016-10-05

    Abstract: The present invention relates to a method of producing a set of primers suitable for the reverse transcription and/or amplification of a plurality (N) of nucleic acid molecules of interest, wherein for each nucleic acid molecule of interest at least one primer is produced and wherein the primers carry a bar-code, the method comprising the steps of: (a)(i) combining (1 ) a first oligonucleotide, wherein said first oligonucleotide comprises a first bar-code nucleic acid sequence linked at its 3' end to a first adapter nucleic acid sequence with (2) a plurality (N) of second oligonucleotides, wherein each second oligonucleotide comprises the reverse complementary sequence of a forward primer specific for a nucleic acid molecule of interest, wherein said reverse complementary sequence of the forward primer is linked at its 3' end to the reverse complementary sequence of the first adapter nucleic acid sequence; and/or (a)(ii) combining (1 ) a third oligonucleotide, wherein said third oligonucleotide comprises a second bar-code nucleic acid sequence linked at its 3' end to a second adapter nucleic acid sequence with (2) a plurality (N) of fourth oligonucleotides, wherein each fourth oligonucleotide comprises the reverse complementary sequence of a reverse primer specific for said nucleic acid molecule of interest, wherein said reverse complementary sequence of the reverse primer is linked at its 3' end to the reverse complementary sequence of the second adapter nucleic acid sequence; wherein steps (a)(i) and (a)(ii) are carried out under conditions that enable the annealing of the first and second adapter nucleic acid sequences to the respective reverse complementary sequences thereof; (b) extending the oligonucleotides of (a)(i) and (a)(ii) by polymerase-mediated oligonucleotide synthesis; and (c) optionally, removing the second and fourth oligonucleotides. The present invention further relates to methods of producing a plurality (M) of nucleic acid amplification products of interest carrying at least one sample-specific bar-code as well as to a method for multiplex sequencing of a plurality (M) of nucleic acid amplification products of interest from a plurality (X) of samples in a single reaction chamber and identifying the individual sample from which each nucleic acid amplification product is derived. Furthermore, the present invention relates to a target- unspecific bar-code-adapter panel, its use in the methods of the invention as well as a kit comprising same.

    ORTHOGONAL DEBLOCKING OF NUCLEOTIDES
    5.
    发明公开

    公开(公告)号:EP3329007A1

    公开(公告)日:2018-06-06

    申请号:EP16739665.4

    申请日:2016-07-08

    Applicant: Illumina, Inc.

    Abstract: A method including steps of (a) providing an array of sites, wherein each site comprises a mixture of different nucleic acid templates; (b) extending primers hybridized to the different nucleic acid templates at each of the sites with different nucleotide analogs having different reversible blocking moieties, respectively, thereby producing different primer extension products at each site; (c) detecting the different primer extension products to distinguish the different nucleotide analogs at each site; and (d) removing the different reversible blocking moieties from the primer extension products at each of the sites using a first treatment that is selective for a first of the different reversible blocking moieties and a second treatment that is selective for a second of the different reversible blocking moieties.

    METHODS FOR NEXT GENERATION GENOME WALKING AND RELATED COMPOSITIONS AND KITS
    10.
    发明公开
    METHODS FOR NEXT GENERATION GENOME WALKING AND RELATED COMPOSITIONS AND KITS 审中-公开
    下一代基因组移植方法及相关组合物和试剂盒

    公开(公告)号:EP3298171A1

    公开(公告)日:2018-03-28

    申请号:EP16800544.5

    申请日:2016-05-20

    Inventor: WARD, Brian

    Abstract: Methods are provided herein for identifying rare and/or unknown DNA sequences by next-generation sequencing approaches. Isolated double-stranded (ds), single-stranded (ss), or ds/ss DNA is fragmented and the fragments are polished, phosphorylated, and tailed, as necessary. Fragmentation can be enzymatic or mechanical. A universal adapter sequence is ligated to each fragment, wherein the adapter can have a top strand without a 5' phosphate, a 3' with an -H in place of the -OH, and/or a 3' extra base complementary to any base added to the polished fragments. The ligatamers may then serve as templates for ampli?cation using a forward primer complementary to the adapter sequence and a reverse primer targeted to the fragment sequence. Compositions produced by these methods and kits adapted for performing these methods are also described herein.

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