JP6837073B2 - プライマー伸長中のプライマー−プライマー相互作用の排除 - Google Patents
プライマー伸長中のプライマー−プライマー相互作用の排除 Download PDFInfo
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Description
用語「ポリメラーゼ」は、天然(その天然種から精製される)であってもまたは組換え体(形質転換宿主で産生され、そしてそこから精製される)であってもよい核酸ポリメラーゼを指す。本発明の背景において、ポリメラーゼは、元来のアミノ酸配列、または本発明の方法にしたがって修飾塩基で複製を失速させる能力をポリメラーゼが維持する限り、修飾アミノ酸配列を有することも可能である。
分子反転プローブ(MIP)は、次世代配列決定適用において、ターゲット配列を濃縮させるために用いられてきている。用いるプローブプールは、数百そしてさらに数千のターゲットアンプリコンを生成しうる。しかし、数百または数千の他のプローブの背景においてよく働くプローブを設計することは容易ではない。これは、最終ライブラリーにおいて、望ましくない産物を生成する、プローブ間の相互作用が起こりうるためである。この状況は、これらのプローブにおいてユニークな識別子配列を用いた際に悪化する可能性もあり、これはこれらが配列決定を通じた分子同定を可能にするために、プローブ内に操作されるランダム配列であるためである。分子反転プローブ内へのウラシル塩基の取り込みは、2つのプローブが相互作用した際に、ポリメラーゼ伸長をブロッキングすることにより、望ましくない産物の生成を減少させるはずである。
Claims (8)
- プライマー−プライマー相互作用を減少させつつ、試料中のターゲット核酸を増幅する方法であって:
a.試料を、核酸ポリメラーゼ、およびポリメラーゼによるヌクレオチド取り込みを失速させる少なくとも1つの修飾ヌクレオチドを含む、ターゲット核酸に相補的な第一のプライマーと接触させて、プライマー伸長産物を生成する、プライマー伸長工程;
b.該プライマー伸長産物を二本鎖アダプターに連結する;および
c.該試料を、プライマー伸長産物に相補的な第二のプライマーと接触させる、指数関数的増幅工程
を含み、
該プライマーが、ターゲット配列に非相補的なリンカー配列によって分離されている、ターゲット配列に相補的な2つのアームからなる一本鎖オリゴヌクレオチドである、
前記方法。 - 前記アダプターおよび第一のプライマーが、普遍的増幅プライマーの結合部位を含み、そして前記第二のプライマーが普遍的プライマーである、請求項1の方法。
- 前記指数関数的増幅工程が、修飾ヌクレオチドに耐性であるポリメラーゼを利用する、請求項1または2の方法。
- 工程cの前に精製工程をさらに含み、ここで第一のプライマーおよびテンプレート核酸が、プライマー伸長産物から分離される、請求項1〜3のいずれか1項の方法。
- 前記修飾ヌクレオチドがウラシルである、請求項1〜4のいずれか1項の方法。
- 工程cの前にキャリーオーバー防止工程をさらに含み、ここで試料をウラシルDNAグリコシラーゼと接触させる、請求項5の方法。
- 請求項1〜6のいずれか1項の方法にしたがって、試料におけるターゲット核酸を増幅するためのキットであって、
核酸ポリメラーゼ、
ポリメラーゼによるヌクレオチド取り込みを失速させる少なくとも1つの修飾ヌクレオチドを含む、プライマー伸長産物を生成するための、ターゲット核酸に相補的な第一のプライマー、
該プライマー伸長産物に連結するための二本鎖アダプター、および
該プライマー伸長産物に相補的な第二のプライマー、
を含み、
該プライマーが、ターゲット配列に非相補的なリンカー配列によって分離されている、ターゲット配列に相補的な2つのアームからなる一本鎖オリゴヌクレオチドである、
前記キット。 - 請求項1〜6のいずれか1項の方法にしたがって、試料におけるターゲット核酸を増幅するための反応混合物であって、
核酸ポリメラーゼ、および
ポリメラーゼによるヌクレオチド取り込みを失速させる少なくとも1つの修飾ヌクレオチドを含む、プライマー伸長産物を生成するための、ターゲット核酸に相補的な第一のプライマー、
を含み、
該プライマーが、ターゲット配列に非相補的なリンカー配列によって分離されている、ターゲット配列に相補的な2つのアームからなる一本鎖オリゴヌクレオチドである、
前記反応混合物。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201662299988P | 2016-02-25 | 2016-02-25 | |
| US62/299,988 | 2016-02-25 | ||
| PCT/EP2017/053922 WO2017144457A1 (en) | 2016-02-25 | 2017-02-21 | Elimination of primer-primer interactions during primer extension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2019506172A JP2019506172A (ja) | 2019-03-07 |
| JP6837073B2 true JP6837073B2 (ja) | 2021-03-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2018544197A Active JP6837073B2 (ja) | 2016-02-25 | 2017-02-21 | プライマー伸長中のプライマー−プライマー相互作用の排除 |
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| Country | Link |
|---|---|
| US (2) | US10961567B2 (ja) |
| EP (1) | EP3420100B1 (ja) |
| JP (1) | JP6837073B2 (ja) |
| CN (1) | CN108699595B (ja) |
| ES (1) | ES2874275T3 (ja) |
| WO (1) | WO2017144457A1 (ja) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6681804B2 (ja) * | 2016-03-30 | 2020-04-15 | 大研医器株式会社 | 変異プライマーの設計方法 |
| WO2019121842A1 (en) * | 2017-12-21 | 2019-06-27 | F. Hoffmann-La Roche Ag | Target enrichment by unidirectional dual probe primer extension |
| CN113862339B (zh) * | 2021-12-01 | 2022-03-22 | 广州滴纳生物科技有限公司 | 核酸组合产品、检测试剂盒和扩增靶核酸的方法 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5683896A (en) * | 1989-06-01 | 1997-11-04 | Life Technologies, Inc. | Process for controlling contamination of nucleic acid amplification reactions |
| US5035996A (en) | 1989-06-01 | 1991-07-30 | Life Technologies, Inc. | Process for controlling contamination of nucleic acid amplification reactions |
| DE60131903T2 (de) | 2000-10-24 | 2008-11-27 | The Board of Trustees of the Leland S. Stanford Junior University, Palo Alto | Direkte multiplex charakterisierung von genomischer dna |
| US8507662B2 (en) * | 2001-01-19 | 2013-08-13 | General Electric Company | Methods and kits for reducing non-specific nucleic acid amplification |
| US7629152B2 (en) * | 2002-03-01 | 2009-12-08 | Integrated Dna Technologies, Inc. | Methods for amplifying polymeric nucleic acids |
| US7211382B2 (en) * | 2002-04-09 | 2007-05-01 | Orchid Cellmark Inc. | Primer extension using modified nucleotides |
| US7517978B1 (en) * | 2004-04-14 | 2009-04-14 | Applied Biosystems, Llc | Modified oligonucleotides and applications thereof |
| CA2691942C (en) * | 2007-07-03 | 2017-12-05 | Genaphora Ltd. | Methods and kits using chimeric probes for reducing or eliminating formation of artifacts and non-specific amplification products |
| ES2657233T3 (es) | 2010-08-30 | 2018-03-02 | Dow Agrosciences, Llc | Potenciador viral baciliforme de la caña de azúcar (SCBV) y su uso en la genómica vegetal funcional |
| WO2014003580A1 (en) | 2012-06-28 | 2014-01-03 | Caldera Health Ltd | Targeted rna-seq methods and materials for the diagnosis of prostate cancer |
| CA2877493C (en) | 2012-07-24 | 2020-08-25 | Natera, Inc. | Highly multiplex pcr methods and compositions |
| CN103114131B (zh) | 2012-11-30 | 2018-10-02 | 珠海市坤元农业科技有限公司 | 一种引物中部序列干扰pcr技术 |
| WO2014110272A1 (en) | 2013-01-09 | 2014-07-17 | The Penn State Research Foundation | Low sequence bias single-stranded dna ligation |
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2017
- 2017-02-21 CN CN201780012552.6A patent/CN108699595B/zh active Active
- 2017-02-21 WO PCT/EP2017/053922 patent/WO2017144457A1/en not_active Ceased
- 2017-02-21 EP EP17706465.6A patent/EP3420100B1/en active Active
- 2017-02-21 JP JP2018544197A patent/JP6837073B2/ja active Active
- 2017-02-21 US US16/080,151 patent/US10961567B2/en active Active
- 2017-02-21 ES ES17706465T patent/ES2874275T3/es active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| US20190048410A1 (en) | 2019-02-14 |
| US10961567B2 (en) | 2021-03-30 |
| EP3420100B1 (en) | 2021-04-07 |
| EP3420100A1 (en) | 2019-01-02 |
| US11946099B2 (en) | 2024-04-02 |
| CN108699595B (zh) | 2022-11-04 |
| CN108699595A (zh) | 2018-10-23 |
| ES2874275T3 (es) | 2021-11-04 |
| WO2017144457A1 (en) | 2017-08-31 |
| US20210254146A1 (en) | 2021-08-19 |
| JP2019506172A (ja) | 2019-03-07 |
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