KR20170020091A - shRNA 발현 카세트의 제조방법, 그 방법에 의해 제조된 shRNA 발현 카세트 및 이를 포함하는 라이브러리 - Google Patents
shRNA 발현 카세트의 제조방법, 그 방법에 의해 제조된 shRNA 발현 카세트 및 이를 포함하는 라이브러리 Download PDFInfo
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- KR20170020091A KR20170020091A KR1020150114815A KR20150114815A KR20170020091A KR 20170020091 A KR20170020091 A KR 20170020091A KR 1020150114815 A KR1020150114815 A KR 1020150114815A KR 20150114815 A KR20150114815 A KR 20150114815A KR 20170020091 A KR20170020091 A KR 20170020091A
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- UNXRWKVEANCORM-UHFFFAOYSA-N triphosphoric acid Chemical compound OP(O)(=O)OP(O)(=O)OP(O)(O)=O UNXRWKVEANCORM-UHFFFAOYSA-N 0.000 description 1
- 229940035893 uracil Drugs 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
Description
도 2는 본 발명의 shRNA 발현 카세트 및 shRNA 발현 라이브러리 제작과정을 나타낸 모식도이다.
도 3은 실시예 <2-1>의 1st PCR 증폭 반응을 나타내는 것으로, 상기 반응에 사용된 프라이머 쌍(세트) 및 증폭 산물을 도시한다.
도 4는 실시예 <2-2>의 BsrDI 제한효소 처리 반응을 나타내는 것으로, 상기 제한효소의 처리로 인한 절단 부위 및 생성된 DNA 이중 사슬 절편을 도시한다.
도 5는 실시예 <2-2>의 lambda exonuclease 처리 반응을 나타내는 것으로, 상기 lambda exonuclease 처리에 의해 제거 또는 수득된 DNA 단일 사슬을 도시한다.
도 6은 실시예 <2-3>의 자가혼성화 유도 반응을 나타내는 것으로, 상기 혼성화 반응에 의해 생성된 비대칭적 헤어핀 구조형 단일가닥 DNA 사슬을 도시한다.
도 7은 실시예 <2-4>의 DNA 서열 신장 반응을 나타내는 것으로, T4 DNA polymerase 반응에 의해 수득된 대칭적 헤어핀 구조형 단일가닥 DNA 사슬을 도시한다.
도 8은 실시예 <2-5>의 EarI 제한효소 처리 반응을 나타내는 것으로, 상기 제한효소의 처리로 인한 절단 부위 및 생성된 헤어핀 구조형 핵산 절편을 도시한다.
도 9는 실시예 <2-6>의 branched adaptor 연결 반응을 나타내는 것으로, 상기 연결 반응에 의해 생성된 헤어핀 구조형 핵산을 도시한다.
도 10은 실시예 <2-7>의 2nd PCR 증폭반응을 나타내는 것으로, 상기 반응에 사용된 프라이머 쌍(세트) 및 증폭 산물을 도시한다.
도 11은 실시예 <2-8>의 NGS 분석으로 확인한 shRNA의 정확도를 나타낸 그래프이다. x축은 % perfect match(각각의 shRNA에 대하여 총 read에 대한 perfect match의 비율을 백분율로 환산한 것)이고 y축은 shRNA의 수(shRNA numbers)이다. x축의 구간은 십 단위로 [이상~미만]을 나타내며(예를 들어 맨 처음 구간은 % perfect match가 0 이상 10 미만인 구간), 맨 마지막 구간은 100을 포함한다.
Claims (21)
- ⅰ) 제1차 제한효소 타입 Ⅱ의 인식 서열을 포함하는 5' 프라이머 서열을 포함하는 DNA 서열;
ii) 3개 내지 9개의 염기로 이루어진 표적 유전자에 대한 안티센스 RNA를 코딩하는 DNA 서열;
iii) 10개 내지 33개의 염기로 이루어진 헤어핀 루프를 코딩하는 DNA 서열;
iv) 19 내지 24개의 염기로 이루어지며 상기 ii)에서와 동일한 표적 유전자에 대한 센스 RNA를 코딩하는 DNA 서열; 및
v) 제2차 제한효소 타입 Ⅱ의 인식 서열을 포함하는 3’프라이머 결합 부위를 포함하는 DNA 서열
로 이루어지는 올리고뉴클레오티드.
- 제1항에 있어서, 상기 i)의 DNA 서열은 서열번호 1로 표시되는 DNA 서열인 것을 특징으로 하는 올리고뉴클레오티드.
- 제1항에 있어서, 상기 iii)의 헤어핀 루프를 코딩하는 DNA 서열은 서열번호 2로 표시되는 염기서열을 가지는 것을 특징으로 하는 올리고뉴클레오티드.
- 제1항에 있어서, 상기 v)의 DNA 서열은 서열번호 3으로 표시되는 DNA 서열인 것을 특징으로 하는 올리고뉴클레오티드.
- 제1항에 있어서, 상기 올리고뉴클레오티드는 서열번호 4로 표시되는 염기서열 인 것을 특징으로 하는 올리고뉴클레오티드.
- (a) 제1항의 올리고뉴클레오티드 및 이에 상보적인 서열로 이루어지는 이중가닥 DNA 사슬(double strand DNA chain)에 제1차 제한효소 타입 Ⅱ를 처리하고 단일가닥 DNA 사슬(single-strand DNA chain)을 제작 및 수득하는 단계;
(b) 상기 (a) 단계에서 수득된 단일가닥 DNA 사슬에 포함되어 있는 센스 RNA를 코딩하는 DNA서열 및 안티센스 RNA를 코딩하는 DNA 서열 간의 자가혼성화(self-hybridization)를 유도하여, 스템-루프 구조 중 스템을 이루는 한쪽 팔(arm)이 짧은 비대칭적 헤어핀 구조형 단일가닥 DNA 사슬을 수득하는 단계;
(c) 상기 (b) 단계에서 수득된 비대칭적 헤어핀 구조형 단일가닥 DNA 사슬에서 스템을 이루는 짧은 쪽 팔(arm)의 말단을, 혼성화되지 않고 오버행(overhang) 되어있는 DNA 서열 부분에 상보적으로 신장(elongation)하여 대칭적 헤어핀 구조형 단일가닥 DNA 사슬을 수득하는 단계 ;
(d) 상기 (c) 단계에서 수득한 대칭적 헤어핀 구조형 단일가닥 DNA 사슬에 제2차 제한효소 타입 Ⅱ를 처리하는 단계; 및
(e) 상기 (d) 단계에서 수득된 DNA 사슬 양 말단에 각각 제1 및 제2어댑터(adaptor)를 부착하고, PCR 하여 증폭시키는 단계;
를 포함하는 shRNA 발현 카세트(small hairpin RNA expression cassette) 제조방법.
- 제6항에 있어서, 상기 (a) 단계는
(a1) 제1항의 올리고뉴클레오티드를 5’ 프라이머 및 5’-말단이 표지된 3’프라이머로 증폭시켜 이중가닥 DNA 사슬(double-strand DNA chain)을 수득하는 단계; 및
(a2) 상기 (a1) 단계에서 수득된 이중가닥 DNA 사슬에 제1차 제한효소 타입 Ⅱ 및 엑소뉴클레아제(exonuclease)를 처리하고, 5’-말단이 표지된 단일가닥 DNA사슬만을 선택적으로 수득하는 단계;
로 이루어지는 것을 특징으로 하는 shRNA 발현 카세트(small hairpin RNA expression cassette) 제조방법.
- 제6항에 있어서, 상기 (e) 단계의 제1 및 제2어댑터(adaptor)는 서로 다른 제한효소 절단 서열을 포함하는 것을 특징으로 하는 shRNA 발현 카세트(small hairpin RNA expression cassette) 제조방법.
- 제6항에 있어서, 상기 (e) 단계의 제1 및 제2어댑터(adaptor)는 각각 서열번호 7 및 서열번호 8로 표시되는 염기서열로 이루어지는 것을 특징으로 하는 shRNA 발현 카세트(small hairpin RNA expression cassette) 제조방법.
- 제7항에 있어서, 상기 엑소뉴클레아제는 T7 엑소뉴클라아제(T7 Exonuclease) 또는 엑소뉴클레아제 람다(exonuclease lambda)인 것을 특징으로 하는 shRNA 발현 카세트(small hairpin RNA expression cassette) 제조방법.
- 제7항에 있어서, 상기 표지는 비인산화 화합물에 의한 표지인 것을 특징으로 하는 shRNA 발현 카세트(small hairpin RNA expression cassette) 제조방법.
- 제6항의 방법에 의해 제조된 shRNA 발현 카세트.
- 제12항에 있어서, 상기 shRNA 발현 카세트는
제1어댑터 DNA 서열;
센스 RNA 를 코딩하는 DNA 서열;
헤어핀 루프를 코딩하는 DNA 서열;
상기 센스 RNA에 상보적으로 결합하는 안티센스 RNA를 코딩하는 DNA 서열; 및
제2어댑터 DNA 서열;
을 포함하는 것을 특징으로 하는 shRNA 발현 카세트.
- 제12항의 shRNA 발현 카세트를 포함하는 재조합 발현 벡터.
- 제14항에 있어서, 상기 발현 벡터는 CNNC motif를 추가로 포함하는 것을 특징으로 하는 shRNA 발현 카세트를 포함하는 재조합 발현 벡터.
- 제14항에 있어서, 상기 발현 벡터는 플라스미드 벡터 또는 바이러스 벡터인 것을 특징으로 하는 shRNA 발현 카세트를 포함하는 재조합 발현 벡터.
- 제16항에 있어서, 상기 바이러스 벡터는 아데노바이러스 벡터, 아데노연관바이러스 벡터, 렌티바이러스 벡터, 레트로바이러스 벡터 및 헤르페스바이러스 벡터로 이루어진 그룹으로부터 선택되는 것을 특징으로 하는 shRNA 발현 카세트를 포함하는 재조합 벡터.
- 제12항의 shRNA 발현 카세트를 포함하는 복수의 벡터로 구성된 shRNA 코딩 라이브러리(shRNA encoding library).
- 제18항에 있어서, 상기 복수의 벡터는 서로 상이한 센스 RNA를 코딩하는 DNA 서열이 삽입된 shRNA 발현 카세트를 포함하는 것을 특징으로 하는 shRNA 코딩 라이브러리(shRNA encoding library).
- 서로 상이한 센스 RNA를 코딩하는 DNA 서열이 삽입된 제12항의 shRNA 발현 카세트를 하나 이상 제작하는 단계;
상기 제작된 shRNA 발현 카세트들을 발현벡터(RNA vector system)에 클로닝(cloning)하는 단계;
상기 클로닝된 벡터를 풀링(pooling)하는 단계를 포함하는 shRNA 코딩 라이브러리(shRNA encoding library) 제조방법.
- 제18항의 shRNA 코딩 라이브러리(shRNA encoding library)가 패키징(packaging)된 위바이러스성 입자(pseudoviral particle).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021133088A1 (ko) * | 2019-12-26 | 2021-07-01 | 이원다이애그노믹스(주) | 이중 가닥 핵산 분자 및 이를 이용한 dna 라이브러리 내 유리 어댑터 제거 방법 |
| WO2024072006A1 (ko) * | 2022-09-28 | 2024-04-04 | 포항공과대학교 산학협력단 | 효소 반응을 통한 총 mrna 기반 무작위 sgrna 라이브러리 생성 방법 |
| WO2025048512A1 (ko) * | 2023-08-30 | 2025-03-06 | 주식회사 제노헬릭스 | 제한효소를 이용한 rna 라이브러리 제작 방법 |
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2015
- 2015-08-13 KR KR1020150114815A patent/KR20170020091A/ko not_active Ceased
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021133088A1 (ko) * | 2019-12-26 | 2021-07-01 | 이원다이애그노믹스(주) | 이중 가닥 핵산 분자 및 이를 이용한 dna 라이브러리 내 유리 어댑터 제거 방법 |
| KR20210083079A (ko) * | 2019-12-26 | 2021-07-06 | 이원다이애그노믹스(주) | 이중 가닥 핵산 분자 및 이를 이용한 dna 라이브러리 내 유리 어댑터 제거 방법 |
| KR20210090603A (ko) * | 2019-12-26 | 2021-07-20 | 이원다이애그노믹스(주) | 이중 가닥 핵산 분자 및 이를 이용한 dna 라이브러리 내 유리 어댑터 제거 방법 |
| CN115461457A (zh) * | 2019-12-26 | 2022-12-09 | 伊万基因诊断中心有限公司 | 双链核酸分子及利用其去除dna文库中glass接头的方法 |
| WO2024072006A1 (ko) * | 2022-09-28 | 2024-04-04 | 포항공과대학교 산학협력단 | 효소 반응을 통한 총 mrna 기반 무작위 sgrna 라이브러리 생성 방법 |
| WO2025048512A1 (ko) * | 2023-08-30 | 2025-03-06 | 주식회사 제노헬릭스 | 제한효소를 이용한 rna 라이브러리 제작 방법 |
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