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公开(公告)号:US20180195060A1
公开(公告)日:2018-07-12
申请号:US15567963
申请日:2016-04-14
发明人: Ou WANG , Cankun CHANG , Lin LIN , Hui JIANG , Wenwei ZHANG
CPC分类号: C12N15/1093 , C12N15/10 , C40B40/06 , C40B50/06 , C12Q2525/191 , C12Q2563/179
摘要: Disclosed is a method for constructing a long fragment DNA library, comprising the following steps: 1) breaking a long fragment DNA into target fragments of 3-10 kb by transposase, then amplifying the target fragments, and obtaining target fragment amplification products containing dUTP; 2) amplifying the dUTP in the products by removing the target fragments, fragmenting the target fragments secondarily into DNA short fragments of 300-1200 bp; 3) connecting both ends of the DNA short fragments with sequencing linker single chains A and sequencing linker single chains B respectively; and obtaining connecting sequencing linker products; and 4) PCR amplifying the connecting sequencing linker products, to obtain amplification products.
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2.
公开(公告)号:US20170349893A1
公开(公告)日:2017-12-07
申请号:US15529867
申请日:2014-11-26
发明人: Yuan JIANG , Xia ZHAO , Andrei ALEXEEV , Radoje DRMANAC , Wenwei ZHANG , Hui JIANG
IPC分类号: C12N15/10
摘要: A method and reagent for constructing a nucleic acid double-joint single-strand cyclical library. The method comprises: breaking a nucleic acid into nucleic acid fragments; connecting a first linker sequence; producing by amplification a first product provided with the first linker sequence at either end, where a U nucleobase is provided on a primer sequence; using USER enzyme to cleave the first product and cyclizing to produce a gap; or, a nicking enzyme recognition sequence is also provided on the primer sequence, using the USER enzyme to cleave the first product, cyclizing and using a nicking enzyme for nicking to produce a nick; performing a restrictive nick/gap translation reaction from the nick or the gap; removing by digestion any portion that did not undergo the restrictive nick/gap translation reaction; connecting a second linker sequence; producing by amplification a second product provided with the second linker sequence at either end; denaturing the second product, and using a mediated sequence for cyclization of a single-strand nucleic acid molecule. The method allows an increase in the length of library insert fragments and obviates the need for gel extraction; the single-strand nucleic acid molecule can be cyclized directly when denatured with heat.
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公开(公告)号:US20170227528A1
公开(公告)日:2017-08-10
申请号:US15515501
申请日:2014-09-30
发明人: Qiang Feng , Zhipeng Liu , Nan Meng , Jun Wang
CPC分类号: G01N33/5091 , G01N30/02 , G01N30/62 , G01N30/72 , G01N33/48 , G01N2030/027 , G01N2800/324
摘要: The present invention relates to a disease-specific metabolite profile, and particularly to a biomarker composition obtained by screening from blood plasma-specific profiles of coronary heart disease subjects. The present invention also relates to a use of the biomarker compositions in risk assessment, diagnosis, early diagnosis, or pathological staging of coronary heart disease, and to a method for risk assessment, diagnosis, early diagnosis, or pathological staging of coronary heart disease. The biomarker composition as provided by the present invention can be used for early diagnosis of coronary heart disease and has high sensitivity, good specificity and good application prospects.
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4.
公开(公告)号:US10479991B2
公开(公告)日:2019-11-19
申请号:US15529881
申请日:2014-11-26
发明人: Yuan Jiang , Qiaoling Li , Andrei Alexeev , Evan Hurowitz , Xia Zhao , Tong Wang , Chao Dong , Dong Li , Radoje Drmanac , Wenwei Zhang , Hui Jiang
摘要: A method and reagent for constructing a nucleic acid double-linker single-strand cyclic library. The method comprises: breaking a nucleic acid into nucleic acid fragments; connecting a first linker sequence; producing by amplification a first product provided with the first linker sequence at either end, where a U nucleobase site is provided on primer sequences and a nicking enzyme recognition sequence is either provided or not provided on same, and a first affinity tag is provided on one of the primer sequences; using USER enzyme to cleave the first product; cyclizing the cleaved first product; treating the cyclization product with either a phosphatase or a nicking enzyme; using a solid-phase vector for combination with a cyclized molecule; performing a restrictive gap translation reaction; removing by digestion any portion that did not undergo the restrictive gap translation reaction; connecting a second linker sequence; producing by amplification a second product provided with the second linker sequence at either end; denaturing the second product, and cyclizing a single-strand nucleic acid molecule. The method allows an increase in the length of library insert fragments, a simplified library construction process, reduced library construction time, and reduced library construction costs.
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公开(公告)号:US20180163251A1
公开(公告)日:2018-06-14
申请号:US15537396
申请日:2015-12-09
发明人: Jing Guo , Rongrong GUO , Meiyan LI , Chunyu GENG , Hui JIANG
IPC分类号: C12Q1/6806 , C12P19/34
CPC分类号: C12Q1/6806 , C12P19/34 , C12Q1/6855 , C12Q2525/155 , C12Q2531/101 , C12Q2563/131 , C12Q2563/179
摘要: Provided are a target region enrichment method based on multiplex PCR, and a reagent, the method comprising: connecting a first linker and a second linker respectively at two ends of a nucleic acid segment containing target regions to be enriched so as to obtain a linker-connected product; performing a PCR amplification on the linker-connected product using a first primer specifically bound to the first linker and a second primer specifically bound to the second linker to obtain an amplified product, the first primer or the second primer having a first affinity label; capturing a single strand having the first affinity label in the amplified product using a solid phase carrier; performing single primer linear amplification using a third primer with the captured single strand as a template; performing exponential amplification using the third primer and the first primer, with the linearly amplified product as the template, to obtain a product containing the target regions.
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6.
公开(公告)号:US20170355981A1
公开(公告)日:2017-12-14
申请号:US15529881
申请日:2014-11-26
发明人: Yuan JIANG , Qiaoling LI , Andrei ALEXEEV , Evan HUROWITZ , Xia ZHAO , Tong WANG , Chao DONG , Dong LI , Radoje DRMANAC , Wenwei ZHANG , Hui JIANG
摘要: A method and reagent for constructing a nucleic acid double-linker single-strand cyclic library. The method comprises: breaking a nucleic acid into nucleic acid fragments; connecting a first linker sequence; producing by amplification a first product provided with the first linker sequence at either end, where a U nucleobase site is provided on primer sequences and a nicking enzyme recognition sequence is either provided or not provided on same, and a first affinity tag is provided on one of the primer sequences; using USER enzyme to cleave the first product; cyclizing the cleaved first product; treating the cyclization product with either a phosphatase or a nicking enzyme; using a solid-phase vector for combination with a cyclized molecule; performing a restrictive gap translation reaction; removing by digestion any portion that did not undergo the restrictive gap translation reaction; connecting a second linker sequence; producing by amplification a second product provided with the second linker sequence at either end; denaturing the second product, and cyclizing a single-strand nucleic acid molecule. The method allows an increase in the length of library insert fragments, a simplified library construction process, reduced library construction time, and reduced library construction costs.
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公开(公告)号:US20160153054A1
公开(公告)日:2016-06-02
申请号:US15015358
申请日:2016-02-04
发明人: Qiang FENG , Dongya ZHANG , Youwen QIN
IPC分类号: C12Q1/68
CPC分类号: C12Q1/6886 , C12Q1/6806 , C12Q2600/112 , C12Q2600/158 , C12Q2600/16
摘要: Biomarkers and methods for predicting the risk of a disease related to microbiota, in particular colorectal cancer (CRC), are described.
摘要翻译: 描述了用于预测与微生物群,特别是结肠直肠癌(CRC)有关的疾病风险的生物标志物和方法。
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公开(公告)号:US20180180567A1
公开(公告)日:2018-06-28
申请号:US15738114
申请日:2016-06-23
发明人: Handong LI , Jianxun LIN , Quanxin YUN , Shaohua XIANG , Radoje DRMANAC , Snezana DRMANAC , Yongwei ZHANG
IPC分类号: G01N27/327 , C12Q1/6869
CPC分类号: G01N27/3276 , B81B7/02 , C12Q1/6869 , G01N27/3277 , G01N27/3278 , G01N33/48721 , C12Q2521/543 , C12Q2563/116 , C12Q2565/607 , C12Q2565/631 , C12Q2521/101 , C12Q2535/122 , C12Q2537/157
摘要: Provided is a microwell electrode, comprising one or more first electrodes (301); one or more second electrodes (303) each arranged opposite to one first electrode (301), wherein a channel (601) is provided between each first electrode and the second electrode opposite thereto, and the channel (601) has at least one end in communication with a chamber; and one or more guiding electrodes (501) located in the chamber (401). The microwell electrode electrode can sensitively detect a signal and improve the read length of a sequencer greatly. The invention further relates to a method for manufacturing the micro-porous electrode, a microwell electrode array, a sensor chip, a sequencing system, and a method for analysis of a chemical substance and a nucleic acid molecule based on the microwell electrode.
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公开(公告)号:US20170341051A1
公开(公告)日:2017-11-30
申请号:US15667841
申请日:2017-08-03
发明人: Ou Wang , Xiaofang Chen , Liangying Zou , Cankun Chang , Hui Jiang , Wenwei Zhang
CPC分类号: B01J19/0046 , B01J2219/00317 , B01J2219/00587 , B01J2219/00599 , B01J2219/00716 , B01J2219/00722 , C12N15/1068 , C12Q1/6806 , C40B50/06 , C40B50/08 , C40B60/14 , C12Q2521/507 , C12Q2525/191 , C12Q2531/119 , C12Q2535/122 , C12Q2563/159 , C12Q2525/155 , C12Q2525/161 , C12Q2563/179 , C12Q2565/514
摘要: Provided is a method of constructing a sequencing library. The method includes 1) providing a single-stranded DNA fragment from a biological sample; 2) subjecting the single-stranded DNA fragment to whole genomic amplification to obtain a whole genome amplification product; 3) fragmenting the whole genome amplification product using a transposase embedded with two adaptors to obtain a fragmented product with two adaptors respectively at two ends; and 4) amplifying the fragmented product with two adaptors respectively at two ends using a tag sequence and a pair of primers to obtain said sequencing library.
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公开(公告)号:US20170234852A1
公开(公告)日:2017-08-17
申请号:US15515513
申请日:2014-09-30
发明人: Qiang Feng , Zhipeng Liu , Nan Meng , Jun Wang
IPC分类号: G01N33/493 , G06F19/24 , G01N30/72
CPC分类号: G01N33/493 , G01N30/02 , G01N30/62 , G01N30/7233 , G01N33/48 , G01N33/6893 , G01N2570/00 , G01N2800/324 , G01N2800/50 , G01N2800/56 , G06F19/324 , G16B40/00 , G16H50/30
摘要: The present invention relates to a disease-specific metabolite profile, and particularly to a biomarker composition obtained by screening from urine-specific metabolite profiles of coronary heart disease subjects. The present invention also relates to a use of the biomarker compositions in risk assessment, diagnosis, early diagnosis, or pathological staging of coronary heart disease, and to a method for risk assessment, diagnosis, early diagnosis, or pathological staging of coronary heart disease. The biomarker composition as provided by the present invention can be used for early diagnosis of coronary heart disease and has high sensitivity, good specificity and good application prospects.
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