KR20170138566A - 가닥 특이적 cDNA 라이브러리를 작제하기 위한 조성물 및 방법 - Google Patents
가닥 특이적 cDNA 라이브러리를 작제하기 위한 조성물 및 방법 Download PDFInfo
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- KR20170138566A KR20170138566A KR1020177034464A KR20177034464A KR20170138566A KR 20170138566 A KR20170138566 A KR 20170138566A KR 1020177034464 A KR1020177034464 A KR 1020177034464A KR 20177034464 A KR20177034464 A KR 20177034464A KR 20170138566 A KR20170138566 A KR 20170138566A
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Abstract
Description
크기 선택 및 세정은 혼입되지 않은 올리고뉴클레오티드 및 작은 cDNA 단편을 제거한다(4). RNA-cDNA 하이브리드의 말단에서의 일시적 듀플렉스 호흡(breathing)(5)은 5-프라임 포획 어댑터의 단일 가닥 부분과의 상호작용을 촉진하고(6), E. 콜리 DNA 중합효소 I은 완전한 라이브러리 분자로의 이의 혼입을 촉매작용한다(7). 8개의 무작위 데옥시리보뉴클레오티드(SEQ ID NO:21; 5'-NNNNNNNN)의 오버행을 갖는 예시적 이중 가닥 5'-어댑터(130)가 제시된다.
도 2a-2d는 라이브러리 품질 및 특징의 분석을 제공한다. 모든 품질 필터링 단계를 통과하는 판독의 백분율(도 2a). DGE 및 HTR에 대한 서열 중복 수준(도 2b). DGE 및 HTR에서의 판독의 GC 함량(도 2c). HTR 보다 DGE에서 평균 GC 함량은 더 낮고, 분포는 더 넓다. 개별적 뉴클레오티드의 조성은 가닥 특이적 DGE와 비-가닥 특이적 HTR 라이브러리 사이에서 상이하다(도 2d). 서열 편향은 트리밍(trimming)된 품질-필터링된 판독의 처음 여러 위치에서 HTR 라이브러리에서 더욱 명백하다. 오차 막대는 조직 및 방법(도 2a) 또는 방법(도 2b 및 2c)에 의해 분리된 샘플 사이에서의 표준 편차를 반영한다.
도 3a-3d는 판독 맵핑 및 가닥 특이성을 제공한다. 어댑터(도 3a) 및 리보솜 RNA(도 3b) 오염으로부터 유래되는 판독의 분획. ITAGcds+500 참조의 어느 한 가닥에 대한 판독 맵핑(도 3c). 플러스 가닥에 속하는 코딩 서열 맵핑된 판독(도 3d).
도 4a-4c는 전사물 범위 및 cDNA 서열 선택 편향을 제시한다. 맵핑 참조 내의 DGE 및 HTR 판독의 국소화(도 4a), 1.5KB 범위로 맵핑된 DGE 판독은 주석이 달린 정지 코돈 근처에 국소화된다. 맵핑된 판독의 상류의 전사물 뉴클레오티드에 대한 염기 빈도(도 4b 및 4c).
도 5는 각각에 대한 샘플의 대표적 쌍을 이용한 각각의 샘플 DGE 및 HTR에 대한 대표적 샘플 쌍에 대한 log2-전환된 발현 상관관계를 제시한다. 모든 DGE 및 HTR에 대한 평균 R-제곱 값.
도 6a-6b는 DGE 및 HTR에 대한 다차원 스케일링(MDS) 플롯을 제시한다. SAM 및 잎 샘플(도 6a). DGE 및 HTR 사이에서의 SAM 대 잎 Log2 배수 변화 비교(도 6b).
도 7a-7c는 증가하는 시간 간격에서 94℃에서 3 mM 마그네슘에 의한 RNA 단편화를 도시한다(도 7a). E. 콜리 중합효소 I을 이용한 호흡 포획 반응에서의 MgCl 농도의 라이브러리 생성물에 대한 효과(도 7b). 호흡 포획 반응은 E. 콜리 중합효소 I(2.5 U), 클레노우 단편(1.25 U) 및 클레노우 exo-(1.25 U)에 의해 성공적으로 촉진된다(도 7c). 도 7c에 제시된 레인은 각각 4개, 2개 및 2개의 기술적 복제물이다. 호흡 포획 반응(도 7b 및 7c)은 15분 동안 실온에서 수행되었다.
도 8은 RNA 시작량 대 라이브러리 증폭, 이용된 주기 횟수 및 푸울링 전의 세척된 라이브러리의 농도를 제시한다.
도 9a-9b는 본 연구에서 사용된 DGE 및 HTR 라이브러리에 대한 품질 필터링 전 및 후의 PHRED 스코어를 제시한다.
도 10은 1백만개의 품질 필터링된 판독마다의 서열 중복률을 제시한다. 고 처리량 HTR 23.12%(파쇄선), DGE 66.15%(실선), 샷건(Shotgun; SHO) 53.63%(실선), 데옥시-우라실 표시(dU) 48.28%(점선).
도 11a-11f는 추가의 가닥 특이적 라이브러리 방법, 샷건(SHO)(도 11a, 11c 및 11e) 및 데옥시-우라실 표시(dU)(도 11b, 11d 및 11f)에 대한 필터링된 판독 정보에 대한 FastQC 분석학을 제시한다. 품질 스코어(도 11a 및 11b), 염기 조성(도 11c 및 11d), GC 함량 백분율(도 11e 및 11f).
도 12는 DGE 및 HTR에서의 독특하게 맵핑된 판독의 유전체 맵핑 위치를 제공한다. DGE 판독은 전사물의 3-프라임에 우세한 국소화를 나타낸다.
도 13은 SHO 라이브러리에 대한 전사물 범위 추적을 제시한다.
도 14는 판독 기원의 구별을 제시한다. DGE 판독은 전사물이 중첩되거나, 판독의 가닥 특이성에 근접한 경우 이들의 기원 전사물에 양성으로 지정될 수 있다.
도 15는 맵핑된 판독의 상류의 20개의 염기에 대한 정보 내용을 나타내는 서열 로고(logo)를 제시한다.
도 16은 방법 사이보다는 각각의 방법 내에서 더 높은 상관관계를 나타내는 차별적 유전자 발현의 쌍을 이룬 비교를 제공한다.
도 17은 3-프라임 말단 근처에 바코드 서열을 함유하는 단일 가닥 어댑터에 의한 동일한 mRNA 샘플로부터의 이종성 증폭을 제시한다.
도 18은 바코드 서열에 의해서만 그룹화를 나타내는 단일 가닥의 바코드 함유 어댑터로 제조된 라이브러리 샘플의 계층적 클러스터링을 도시한다.
도 19는 구아닌 반복부를 함유하는 위치를 맵핑하는 판독의 과다표현(overrepresentation)을 제시한다.
도 20은 프로토타입 어댑터로 제조된 라이브러리의 맵핑 위치의 매우 고르지 않은 분포를 제시한다.
도 21은 트리밍된 판독에 대한 첫번째 맵핑 뉴클레오티드의 상류의 판독에 대한 서열 정보 내용을 제시한다.
도 22는 본원에 기재된 방법(BrAD-seq) 및 Illumina ScriptSeq v2를 이용한 전사물 내의 위치에 의한 판독 범위를 제공한다.
Claims (32)
- (a) 생물학적 샘플로부터 RNA 샘플을 분리시키는 단계;
(b) RNA 분자 및 역전사에 의한 제1 cDNA 가닥을 포함하는 RNA-상보적 DNA(cDNA) 듀플렉스를 생성시키는 단계;
(c) 제1 cDNA 가닥의 3' 말단에 부분적 이중 가닥 올리고뉴클레오티드 5' 어댑터를 어닐링시키는 단계로서, 5' 어댑터가 (i) 적어도 20개의 데옥시리보뉴클레오티드를 포함하는 제1 가닥 포획 올리고뉴클레오티드 및 제1 cDNA 가닥의 3' 말단으로 어닐링되는 약 6-12개의 연속적 무작위 데옥시리보뉴클레오티드를 포함하는 3' 오버행, 및 (ii) 제1 가닥 포획 올리고뉴클레오티드의 적어도 일부에 상보적인 적어도 20개의 데옥시리보뉴클레오티드를 포함하는 제2 가닥 차단 올리고뉴클레오티드를 포함하는, 단계; 및
(d) 가닥 특이적 cDNA 분자를 생성시키는 단계를 포함하는,
RNA 샘플 내의 RNA 분자로부터 가닥 특이적 cDNA 분자를 생성시키는 방법. - 제1항에 있어서, 단계 (a) 후에 RNA 분자를 단편화시키는 단계를 추가로 포함하는 방법.
- 제1항에 있어서, 가닥 특이적 cDNA 분자를 생성시키는 단계가 DNA 중합효소 또는 이의 단편을 이용하여 5' 어댑터의 제1 가닥 포획 올리고뉴클레오티드를 연장시켜 제1 cDNA 가닥에 상보적인 제2 cDNA 가닥을 생성시키는 단계를 포함하는 방법.
- 제1항에 있어서, 제2 가닥 차단 올리고뉴클레오티드에 상보적인 프라이머를 이용하여 제2 cDNA 가닥을 증폭시키는 단계를 추가로 포함하는 방법.
- 제4항에 있어서, 증폭이 중합효소 연쇄 반응을 포함하는 방법.
- 제1항에 있어서, 증폭된 제2 cDNA 가닥의 서열을 결정하는 단계를 추가로 포함하는 방법.
- 제1항에 있어서, 3' 오버행이 미리 선택된 제1 cDNA 가닥에 실질적으로 상보적인 약 8-12개의 연속적 데옥시리보뉴클레오티드를 포함하는 방법.
- 제1항에 있어서, 3' 오버행이 미리 선택된 제1 cDNA 가닥에 100% 상보적인 약 8-12개의 연속적 데옥시리보뉴클레오티드를 포함하는 방법.
- 제 1항에 있어서, 생물학적 샘플이 동물 조직 샘플인 방법.
- 제 1항에 있어서, 생물학적 샘플이 식물 조직 샘플인 방법.
- 제1항에 있어서, RNA 샘플을 단편화시키는 단계가 Mg2 + 함유 완충액에서 수행되는 방법.
- 제1항에 있어서, 단계 (c) 및/또는 (d)가 실온에서 수행되는 방법.
- 제1항에 있어서, DNA 중합효소 또는 이의 단편이 DNA 중합효소 I인 방법.
- 제1항에 있어서, DNA 중합효소 또는 이의 단편이 클레노우(Klenow) 단편인 방법.
- 제1항에 있어서, 5' 어댑터의 제2 가닥 차단 올리고뉴클레오티드가 5' 인산화되는 방법.
- 제15항에 있어서, DNA 중합효소가 클레노우 단편 및 리가제인 방법.
- (a) 적어도 20개의 데옥시리보뉴클레오티드를 포함하는 제1 가닥 포획 올리고뉴클레오티드 및 약 6-12개의 연속적 무작위 데옥시리보뉴클레오티드를 포함하는 3' 오버행, 및
(b) 제1 가닥 포획 올리고뉴클레오티드의 적어도 일부에 상보적인 적어도 20개의 데옥시리보뉴클레오티드를 포함하는 제2 가닥 차단 올리고뉴클레오티드를 포함하는 부분적 이중 가닥 올리고뉴클레오티드 5' 어댑터; 및
제2 가닥 차단 올리고뉴클레오티드에 상보적인 시퀀싱 프라이머를 포함하는, 키트. - 제17항에 있어서, 제2 가닥 차단 올리고뉴클레오티드가 5' 인산화되는 키트.
- 제17항에 있어서, 제1 가닥 포획 올리고뉴클레오티드가 SEQ ID NO:1에 기재된 서열을 포함하는 키트.
- 제17항에 있어서, 제2 가닥 차단 올리고뉴클레오티드가 SEQ ID NO:2에 기재된 서열을 포함하는 키트.
- 제17항에 있어서, 5' 어댑터의 3' 오버행이 약 8-12개의 연속적 무작위 데옥시리보뉴클레오티드를 포함하는 키트.
- 제21항에 있어서, 약 8-12개의 연속적 데옥시리보뉴클레오티드가 RNA-cDNA 듀플렉스의 미리 선택된 제1 cDNA 가닥에 실질적으로 상보적인 키트.
- 제21항에 있어서, 약 8-12개의 연속적 데옥시리보뉴클레오티드가 RNA-cDNA 듀플렉스의 미리 선택된 제1 cDNA 가닥에 100% 상보적인 키트.
- 제17항에 있어서, 사용설명서를 추가로 포함하는 키트.
- 생물학적 샘플로부터 유래된 RNA 분자 및 RNA 분자의 역전사에 의해 생성된 제1 cDNA 가닥을 포함하는 RNA-cDNA 듀플렉스, 및
(a) 적어도 20개의 데옥시리보뉴클레오티드를 포함하는 제1 가닥 포획 올리고뉴클레오티드 및 약 6-12개의 연속적 무작위 데옥시리보뉴클레오티드를 포함하는 3' 오버행, 및 (b) 제1 가닥 포획 올리고뉴클레오티드의 적어도 일부에 상보적인 적어도 20개의 데옥시리보뉴클레오티드를 포함하는 제2 가닥 차단 올리고뉴클레오티드를 포함하는 부분적 이중 가닥 올리고뉴클레오티드 5' 어댑터를 포함하는 폴리뉴클레오티드 복합체로서,
5' 어댑터가 RNA-cDNA 듀플렉스의 제1 cDNA 가닥의 3' 말단으로 어닐링되는, 폴리뉴클레오티드 복합체. - 제25항에 있어서, 제1 cDNA 가닥이 무작위 뉴클레오티드 서열을 포함하는 3' 어댑터를 이용하여 생성되는 폴리뉴클레오티드 복합체.
- 제25항에 있어서, 제1 cDNA 가닥이 polyT 서열을 포함하는 3' 어댑터를 이용하여 생성되는 폴리뉴클레오티드 복합체.
- 제25항에 있어서, 제1 가닥 포획 올리고뉴클레오티드가 SEQ ID NO:1에 기재된 서열을 포함하는 폴리뉴클레오티드 복합체.
- 제25항에 있어서, 제2 가닥 차단 올리고뉴클레오티드가 SEQ ID NO:2에 기재된 서열을 포함하는 폴리뉴클레오티드 복합체.
- 제25항에 있어서, 5' 어댑터의 3' 오버행이 약 8-12개의 연속적 무작위 데옥시리보뉴클레오티드를 포함하는 폴리뉴클레오티드 복합체.
- 제30항에 있어서, 약 8-12개의 연속적 데옥시리보뉴클레오티드가 RNA-cDNA 듀플렉스의 미리 선택된 제1 cDNA 가닥에 실질적으로 상보적인 폴리뉴클레오티드 복합체.
- 제30항에 있어서, 약 8-12개의 연속적 데옥시리보뉴클레오티드가 RNA-cDNA 듀플렉스의 미리 선택된 제1 cDNA 가닥에 100% 상보적인 폴리뉴클레오티드 복합체.
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| CN109136372A (zh) * | 2018-08-08 | 2019-01-04 | 江苏苏博生物医学科技南京有限公司 | 一种基于illumina平台的乳腺癌分型检测建库试剂盒 |
| CN113574181A (zh) * | 2019-03-01 | 2021-10-29 | 武汉华大医学检验所有限公司 | 用于rna直接建库的核酸序列、基于rna样本直接构建测序文库的方法及应用 |
| WO2021166989A1 (ja) * | 2020-02-18 | 2021-08-26 | 国立研究開発法人理化学研究所 | アダプター配列が付加されたdna分子を製造する方法、およびその利用 |
| US20240200057A1 (en) * | 2021-04-22 | 2024-06-20 | Bgi Shenzhen | Method for Constructing RNA Sequencing Library, Sequencing Method and Kit |
| US20240287506A1 (en) * | 2021-06-21 | 2024-08-29 | Westlake University | Library construction method based on long overhang sequence ligation |
| JP2024534858A (ja) * | 2021-08-31 | 2024-09-26 | プレジデント・アンド・フェロウズ・オブ・ハーバード・カレッジ | インターフェロン誘導性の複合体およびrna二重鎖ならびに使用方法 |
| WO2023116373A1 (zh) * | 2021-12-24 | 2023-06-29 | 深圳华大生命科学研究院 | 一种生成标记的核酸分子群的方法及其试剂盒 |
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| US20120156728A1 (en) | 2010-12-17 | 2012-06-21 | Life Technologies Corporation | Clonal amplification of nucleic acid on solid surface with template walking |
| EP4148142B1 (en) * | 2012-05-21 | 2025-08-13 | The Scripps Research Institute | Methods of sample preparation |
| EP2746405B1 (en) | 2012-12-23 | 2015-11-04 | HS Diagnomics GmbH | Methods and primer sets for high throughput PCR sequencing |
| US9255265B2 (en) * | 2013-03-15 | 2016-02-09 | Illumina, Inc. | Methods for producing stranded cDNA libraries |
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| WO2014145078A1 (en) | 2013-03-15 | 2014-09-18 | Verinata Health, Inc. | Generating cell-free dna libraries directly from blood |
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| AU2016255570A1 (en) | 2017-11-23 |
| BR112017023257A2 (pt) | 2018-07-17 |
| JP6917629B2 (ja) | 2021-08-11 |
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| CN107636163A (zh) | 2018-01-26 |
| WO2016176654A2 (en) | 2016-11-03 |
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