KR100823684B1 - 바코드 dna를 이용한 생물학적 표적 물질의 검출 방법 - Google Patents
바코드 dna를 이용한 생물학적 표적 물질의 검출 방법 Download PDFInfo
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- KR100823684B1 KR100823684B1 KR1020060123353A KR20060123353A KR100823684B1 KR 100823684 B1 KR100823684 B1 KR 100823684B1 KR 1020060123353 A KR1020060123353 A KR 1020060123353A KR 20060123353 A KR20060123353 A KR 20060123353A KR 100823684 B1 KR100823684 B1 KR 100823684B1
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Abstract
Description
DNA 종류 | 염기서열 |
제1 프로브 | 5'-biotin AAA AAA AAA AAAA-3' |
제2 프로브 | 5'-biotin GGG GGG GGG GGGG-3' |
제1 바코드 DNA(c-Barcode) | 5'-biotin GCC TCC ACG CAC GTT GTG ATA TGT A-3' |
제2 바코드 DNA(Barcode) | 3'-CGG AGG TGC GTG CAA CAC TAT ACT T biotin-5' |
Claims (13)
- 검출하고자 하는 생물학적 표적 물질과 적어도 30% 상동성을 갖는 제1 프로브가 자성 입자의 표면상에 부착되어 있는 분리용 자성 입자를 준비하고,상기 표적 물질과 적어도 25% 상동성을 갖지만 상기 제1 프로브와 상이한 제2 프로브가 고분자 입자의 표면상에 부착되어 있으며, 또한 인식 코드(identification code)로서 상기 제2 프로브에 비해 적어도 3배 이상의 비율로 존재하며 미리 정해진 배열을 갖는 바코드 DNA가 고분자 입자의 표면상에 부착되어 있으며, 상기 바코드 DNA는 표지물질과 결합되어 있는 분석용 고분자 입자를 준비하는 단계;상기 분리용 자성 입자, 상기 분석용 고분자 입자, 및 상기 표적 물질을 혼성화(hybridization) 반응용 버퍼하에서 반응시키는 단계;그 반응물로부터 분리용 자성 입자 - 표적 물질 - 분석용 고분자 입자로 이루어진 복합체를 자성 분리기를 통해 분리하는 단계;상기 분리된 복합체에 열을 가하여 상기 분석용 고분자 입자에 존재하는 바코드 DNA를 변성(denature)시키고, 원심분리를 통해 상기 복합체로부터 상기 분리용 자성 입자와 상기 분석용 고분자 입자를 제거하여 상기 바코드 DNA를 분리하는 단계; 및상기 분리된 바코드 DNA에 결합되어 있는 표지물질로부터 신호를 검출하는 단계를 포함하는 바코드 DNA를 이용한 생물학적 표적 물질의 검출 방법.
- 제 1항에 있어서, 상기 표적 물질은 DNA, RNA 또는 단백질인 것을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 제1 프로브는 DNA, RNA 또는 단백질인 것을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 제2 프로브는 DNA, RNA 또는 단백질인 것을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 자성 입자는 초상자성(superparamagnetic) 특성을 갖는 것임을 특징으로 하는 방법.
- 제 5항에 있어서, 상기 초상자성 특성을 갖는 자성 입자는 Iron-Oxide, Iron-Cobalt, Iron-Nickel 및 전이금속으로 구성된 그룹으로부터 선택된 금속으로 이루어진 것을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 자성 입자는 1.0~2.8마이크로미터의 입경을 갖는 것을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 고분자 입자는 실리카, 라텍스, PS(poly styrene), PEI(poly ethylene imine) 및 덱스트란으로 이루어진 그룹으로부터 선택된 고분자 물질로 이루어진 것을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 고분자 입자는 0.1-1.0마이크로미터의 입경을 갖는 것을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 바코드 DNA는 제1 바코드 DNA 및 제2 바코드 DNA로 이루어진 이중 가닥의 형태를 가지며, 여기서 상기 제1 바코드 DNA는 한쪽 말단이 나노 입자로 표지되어 있으며 다른 한쪽 말단은 상기 분석용 고분자 입자의 표면상 에 부착되어 있지 않으며, 그리고 상기 제2 바코드 DNA는 상기 제1 바코드 DNA와 상보적이며 한쪽 말단이 상기 분석용 고분자 입자의 표면상에 부착되어 있는 것을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 분석용 고분자 입자의 표면상에 바코드 DNA 대 제2 프로브는 3:1 내지 1000:1의 비율로 존재하는 것을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 분리된 복합체에 열을 가하여 상기 분석용 고분자 입자에 존재하는 바코드 DNA를 변성시키는 경우 가열은 바코드 DNA의 Tm(융해온도) 이상의 온도에서 수행하는 것을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 표지물질은 나노 사이즈의 자성 입자, 형광분석이 가능한 물질 또는 표면에 음전하를 띄는 물질인 것을 특징으로 하는 방법.
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US11/758,735 US7902122B2 (en) | 2006-12-06 | 2007-06-06 | Method for detecting target biological material using DNA barcodes |
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Cited By (4)
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WO2011099730A3 (ko) * | 2010-02-12 | 2012-01-12 | 메디스커브 주식회사 | 세포 내에서 세포내 물질의 생리활성 기능을 조절하는 조절물질을 검출하는 방법 |
KR101408305B1 (ko) | 2014-03-26 | 2014-06-18 | 서강대학교산학협력단 | 티로신 수산화효소 검출용 센서 |
US10481158B2 (en) | 2015-06-01 | 2019-11-19 | California Institute Of Technology | Compositions and methods for screening T cells with antigens for specific populations |
US12258613B2 (en) | 2017-03-08 | 2025-03-25 | California Institute Of Technology | Pairing antigen specificity of a T cell with T cell receptor sequences |
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KR20130051647A (ko) * | 2011-11-10 | 2013-05-21 | 한국전자통신연구원 | 자성 입자를 이용한 바이오 물질의 분석 방법 |
CN109652498A (zh) | 2012-05-30 | 2019-04-19 | 李忠 | 生物标记物的瞬时检测及其用途 |
JP6454281B2 (ja) | 2012-11-05 | 2019-01-16 | タカラ バイオ ユーエスエー, インコーポレイテッド | バーコード化する核酸 |
DE102013213279B4 (de) * | 2013-07-06 | 2024-03-28 | Ist Innuscreen Gmbh | Universelles Verfahren zur Detektion von diversen Analyten in Form von Nukleinsäuresequenzen |
CN107852171B (zh) * | 2015-11-18 | 2021-11-05 | 弗劳恩霍夫应用研究促进协会 | 信号处理系统和信号处理方法 |
EP4103580A4 (en) | 2020-02-13 | 2024-03-06 | Zymergen Inc. | METAGENOMIC LIBRARY AND NATURAL PRODUCT DISCOVERY PLATFORM |
CN115820873B (zh) * | 2022-10-17 | 2023-07-25 | 广西特色作物研究院 | 一种梨茎蜂的dna条形码及其应用 |
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US7902122B2 (en) | 2011-03-08 |
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