-
公开(公告)号:US20190249236A1
公开(公告)日:2019-08-15
申请号:US16371766
申请日:2019-04-01
IPC分类号: C12Q1/6844 , C12Q1/686 , C12Q1/6853 , C12P19/34 , C12N15/09 , C12N9/00 , C12N9/90 , C12N9/16 , C12N9/12
CPC分类号: C12Q1/6846 , C12N9/00 , C12N9/12 , C12N9/16 , C12N9/90 , C12N15/00 , C12N15/09 , C12P19/34 , C12Q1/6853 , C12Q1/686
摘要: The present invention provides a method for easily and exponentially amplifying circular DNA, particularly long chain circular DNA, in a cell-free system. Specifically, the present invention provides a method for amplifying circular DNA in which circular DNA having a replication origin sequence (origin of chromosome (oriC)) is mixed with a reaction solution containing the following enzyme groups to form a reaction mixture, which is then reacted under an isothermal condition, the enzyme groups being:(1) a first enzyme group that catalyzes replication of circular DNA; (2) a second enzyme group that catalyzes an Okazaki fragment maturation and synthesizes two sister circular DNAs constituting a catenane and (3) a third enzyme group that catalyzes a separation of two sister circular DNAs.
-
公开(公告)号:US20190241945A1
公开(公告)日:2019-08-08
申请号:US16265942
申请日:2019-02-01
申请人: OMNIOME, INC.
发明人: Denis Malyshev , Arnold Oliphant
IPC分类号: C12Q1/6853
CPC分类号: C12Q1/6853
摘要: A method of characterizing a nucleic acid that includes steps of (a) contacting a primer-template nucleic acid hybrid with a polymerase and a mixture of nucleotides to produce an extended primer hybrid and to form a stabilized ternary complex including the extended primer hybrid, the polymerase and a nucleotide cognate of the next base in the template, wherein the mixture contains nucleotide cognates of four different base types, wherein the nucleotide cognate of the first base type has a reversible terminator, and wherein nucleotide cognates of the second, third and fourth base types are extendable; (b) detecting the stabilized ternary complex to distinguish the next base from other base types in the template; and (c) determining the presence of a base multiplet in the template nucleic acid, the base multiplet including the first base type followed by the next base.
-
公开(公告)号:US20190218611A1
公开(公告)日:2019-07-18
申请号:US16374752
申请日:2019-04-04
IPC分类号: C12Q1/6876 , C12N15/11 , C12N9/22 , C12Q1/6853 , C12Q1/6858
CPC分类号: C12Q1/6876 , C07K2319/21 , C12N9/22 , C12N15/11 , C12N2310/20 , C12Q1/6853 , C12Q1/6858 , C12Q2600/156 , C12Y207/07007 , C12Y301/00 , C12Y301/26004 , C12Q2521/327 , C12Q2525/121 , C12Q2525/125 , C12Q2525/161 , C12Q2525/186
摘要: The invention can be used to provide a more efficient and less error-prone method of detecting variants in DNA, such as SNPs and indels. The invention also provides a method for performing inexpensive multiplex assays. The invention also provides methods for detection of DNA sequences altered after cleavage by a targetable endonuclease, such as the CRISPR Cas9 protein from the bacterium Streptococcus pyogenes.
-
公开(公告)号:US20190218603A1
公开(公告)日:2019-07-18
申请号:US16301982
申请日:2017-05-18
发明人: Courtney W. HOUCHEN , Nathaniel WEYGANT , Dongfeng QU , Randal MAY , Parthasarathy CHANDRAKESAN
IPC分类号: C12Q1/6837 , C12Q1/6886 , C12Q1/6825 , C12Q1/6832 , C12Q1/6806 , C12Q1/686 , C12Q1/6853
CPC分类号: C12Q1/6837 , C12Q1/68 , C12Q1/6806 , C12Q1/6825 , C12Q1/6832 , C12Q1/6853 , C12Q1/686 , C12Q1/6886 , C12Q2600/158 , C12Q2600/16 , C12Q2600/178
摘要: Primer and/or probe sets and arrays for determining microRNA (miRNA) expression signatures that are specific to doublecortin-like kinase 1 (DCLK1) activity, and methods of their use, are disclosed.
-
公开(公告)号:US20190211386A1
公开(公告)日:2019-07-11
申请号:US16334343
申请日:2017-09-22
IPC分类号: C12Q1/6853 , C12Q1/686 , C12Q1/6876
CPC分类号: C12Q1/6853 , C12Q1/686 , C12Q1/6876 , C40B40/08 , C12Q2525/155 , C12Q2525/161 , C12Q2535/131
摘要: Methods for primer switching during amplification reactions are provided. In particular, methods are provided for converting single primer PCR amplicons to dual primer PCR amplicons.
-
公开(公告)号:US20190194746A1
公开(公告)日:2019-06-27
申请号:US16083347
申请日:2017-03-09
发明人: Takeshi Wada , Reijiro Yoshino , Rintaro Hara , Yohei Nukaga
IPC分类号: C12Q1/6876 , C12Q1/6853 , C07H21/04
CPC分类号: C12Q1/6876 , A61K31/7088 , A61K48/00 , C07H21/04 , C12N15/00 , C12N15/113 , C12Q1/6853 , C12Q2527/101 , C12Q2527/107 , C12Q2600/166
摘要: A nucleic acid oligomer for RNA hybrid formation, including a structure formed of from 3 to 50 continuous units of at least one unit of a nucleotide unit represented by the following General Formula (1) or a nucleotide unit represented by the following General Formula (2); and having a base length of from 8 bases to 50 bases: in which in the formulae, R1 represents a hydrogen atom, an alkoxy group, an alkenyloxy group, an acyloxy group, a trialkylsilyloxy group, or a halogenyl group, and, in the formulae, each Bs1 independently represents a pyrimidine base that may have a protecting group, a hydrogen atom bonded to a carbon atom at the 5-position of the pyrimidine base may be substituted with a group other than a hydrogen atom, in the formulae, each X independently represents S−Z+ or BH3—Z+, Z+ represents a counter cation, each R2 and R3 independently represents a hydrogen atom, or an alkyl group having from 1 to 10 carbon atoms, and R2 and R3 may be bonded to each other to form a ring.
-
7.
公开(公告)号:US20190185914A1
公开(公告)日:2019-06-20
申请号:US16328141
申请日:2017-08-21
申请人: AGCT GmbH
IPC分类号: C12Q1/686 , C12Q1/6806 , C12Q1/6853 , C12Q1/6876
CPC分类号: C12Q1/686 , C12Q1/6806 , C12Q1/6848 , C12Q1/6853 , C12Q1/6876 , C12Q2525/186 , C12Q2531/119 , C12Q2537/1373 , C12Q2525/155 , C12Q2537/162
摘要: It is disclosed a method for amplification of nucleic acids in which substantially use is made of the fact that a pre-defined nucleic acid chain (target sequence) can be multiplied/amplified in the presence of a target sequence-specific activator oligonucleotide. The target sequence-specific activator oligonucleotide causes the separation of re-synthesized complementary primer extension products by means of strand displacement, so that a new primer oligonucleotide can attach to the respective template strand. The thus formed complex of a primer oligonucleotide and a template strand can initiate a new primer extension reaction. The thus formed primer extension products in turn function as templates, so that an exponential amplification reaction results.Here, the activator oligonucleotide itself does not function as a template and preferably is inert over a primer extension reaction. The activator oligonucleotide functions as a co-factor in the reaction that regenerates the single-stranded state of the relevant strand segments of the templates needed for the reaction.By the use of a set of components comprising at least one primer oligonucleotide, at least one polymerase, a set of substrates for polymerase (e.g., dNTPs), and at least one specific activator oligonucleotide a nucleic acid to be amplified can be amplified linearly.By the use of such a set and a second primer oligonucleotide a nucleic acid to be amplified can be amplified exponentially, wherein the resulting specific primer extension products are used for further primer extension reactions as templates.
-
公开(公告)号:US20180237826A1
公开(公告)日:2018-08-23
申请号:US15957128
申请日:2018-04-19
发明人: Mark ANDERSEN , Steven ROMAN
IPC分类号: C12Q1/6806 , C07H21/00 , C12Q1/6853
CPC分类号: C12Q1/6806 , C07H21/00 , C12Q1/6853 , C12Q2525/301 , C12Q2527/107 , C12Q2563/131 , C12Q2563/149
摘要: The present invention provides methods, compositions, kits, systems and apparatus that are useful for isolating nucleic acid molecules from a sample. In particular, the methods generally relate to normalizing the concentration of target nucleic acid molecules from a sample. In one aspect, the invention relates to purifying a primer extension product from a primer extension reaction mixture. In some aspects, nucleic acid molecules obtained using the disclosed methods, kits, systems and apparatuses can be used in various downstream processes including nucleic acid sequencing.
-
公开(公告)号:US20180223333A1
公开(公告)日:2018-08-09
申请号:US15786560
申请日:2017-10-17
申请人: Affymetrix, Inc.
发明人: Eugeni A. NAMSARAEV
IPC分类号: C12Q1/686 , C12Q1/6853 , C12N15/10 , C12Q1/6816 , C12Q1/6851
CPC分类号: C12Q1/686 , C12N15/1065 , C12Q1/6816 , C12Q1/6851 , C12Q1/6853 , C12Q2565/543 , C12Q2561/125 , C12Q2537/143 , C12Q2563/179 , C12Q2549/113 , C12Q2525/155 , C12Q2525/301 , C12Q2533/107 , C12Q2525/307 , C12Q2521/301 , C12Q2521/501 , C12Q2535/122
摘要: Compositions and methods for amplifying selected polynucleotides, including DNA and RNA, particularly in multiplex amplification reactions using common primers amplification. Generally, methods of the invention employ multiple steps such as template-specific hybridization, a linear amplification, partial degradation of nucleic acid, and ligation. At the end of the process the sequences of selected polynucleotides are flanked by the common sequences which can be used for exponential amplification using common primers. In some aspects the polynucleotides are associated with a barcode and the presence of the barcode is detected to measure the amount of the polynucleotide.
-
公开(公告)号:US20180216174A1
公开(公告)日:2018-08-02
申请号:US15875816
申请日:2018-01-19
发明人: Eleen Shum , Glenn K. Fu
IPC分类号: C12Q1/6853 , C12Q1/6848 , C12Q1/6832
CPC分类号: C12Q1/6853 , C12N15/1093 , C12N2310/3181 , C12Q1/6806 , C12Q1/6832 , C12Q1/6848 , C12Q2563/159 , C12Q2525/186 , C12Q2565/514 , C12Q2565/519 , C12Q2565/537
摘要: Disclosed herein include methods and compositions for selectively amplifying and/or extending nucleic acid target molecules in a sample. The methods and compositions can, for example, reduce the amplification and/or extension of undesirable nucleic acid species in the sample, and/or allow selective removal of undesirable nucleic acid species in the sample.
-
-
-
-
-
-
-
-
-