KR20210020132A - 무세포계에서 dna를 편집하는 방법 - Google Patents
무세포계에서 dna를 편집하는 방법 Download PDFInfo
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- KR20210020132A KR20210020132A KR1020217001327A KR20217001327A KR20210020132A KR 20210020132 A KR20210020132 A KR 20210020132A KR 1020217001327 A KR1020217001327 A KR 1020217001327A KR 20217001327 A KR20217001327 A KR 20217001327A KR 20210020132 A KR20210020132 A KR 20210020132A
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Abstract
Description
도 2a는, pOri8(9.5 kb의 환상 DNA)의 구조를 나타낸 도면이다.
도 2b는, CRISPR-Cas9에 의해 pOri8이 서열 특이적으로 절단된 것을 나타낸 도면이다.
도 3a는, pMSR227(205 kb의 환상 DNA)의 구조를 나타낸 도면이다.
도 3b는, CRISPR-Cas9에 의해 pMSR227이 서열 특이적으로 절단된 것을 나타낸 도면이다.
도 4는, CRISPR-Cas9의 존재하에서 RCR을 행함으로써 개변되지 않은 주형 DNA의 증폭을 저해하고, 목적하는 연결 산물을 특이적으로 증폭시킬 수 있는 것을 나타낸 모식도이다.
도 5는, 주형 DNA를 절단하지만 lacZ가 삽입된 DNA를 절단하지 않는 CRISPR-Cas9를 반응계에 첨가해 RCR을 행함으로써, 높은 효율로 lacZ가 삽입된 환상 DNA를 증폭시킬 수 있는 것을 나타낸 도면이다.
도 6a는, lacZ(3.3 kb)가 삽입된 pMSR227(205 kb)의 구조를 나타낸 도면이다.
도 6b는, 제한 효소 XhoI 절단에 의해, lacZ가 삽입된 pMSR227의 구조를 확인한 도면이다.
도 7은, 실시예 3의 2 단편의 장쇄 DNA끼리를 2개의 어댑터 단편(adaptor fragment)을 개재한 RA에 의해 연결 환상화하는 공정을 나타낸 모식도이다.
도 8은, 실시예 3의 RA-RCR에 의한 장쇄 환상 DNA의 증폭을 나타낸 도면이다.
도 9는, 실시예 3의 183 kb의 연결 산물로 형질 전환한 대장균으로부터 회수한 플라스미드의 사이즈를 확인한 도면이다.
도 10은, 실시예 3에서 얻어진 183 kb의 연결 산물의 구조를 확인한 도면이다.
도 11a는, 실시예 4에서 사용한 lacZ 변이 pPKOZ(pPKOZ ins 및 pPKOZ mis)의 구조를 나타낸 도면이다.
도 11b는, 실시예 4의 실험계를 나타낸 도면이다.
도 12는, 실시예 4에서 사용한 lacZ wt, lacZ ins 및 lacZ mis의 개시 코돈 하류의 부분 서열(각각의 염기서열을 서열 번호 58∼60에 나타낸다), 및 염기 치환 도입용 올리고 뉴클레오티드(30 mer)의 서열(서열 번호 17, SUE1355)을 나타낸 도면이다.
도 13a는, 염기 치환이 도입된 플라스미드의 증폭 효율(즉, 청색 콜로니의 비율)에 대한, 염기 치환 도입용 올리고 뉴클레오티드의 길이 및 농도의 영향을 검토한 결과를 나타낸 도면이다. 전기 영동의 결과를 나타낸다.
도 13b는, 염기 치환이 도입된 플라스미드의 증폭 효율(즉, 청색 콜로니의 비율)에 대한, 염기 치환 도입용 올리고 뉴클레오티드의 길이 및 농도의 영향을 검토한 결과를 나타낸 도면이다. 대장균 형질 전환 콜로니의 청백 판정의 결과를 나타낸다.
도 14a는, 염기 치환이 도입된 플라스미드의 증폭 효율(즉, 청색 콜로니의 비율)에 대한, 염기 치환 도입용 올리고 뉴클레오티드의 농도의 영향을 검토한 결과를 나타낸 도면이다. 전기 영동의 결과를 나타낸다.
도 14b는, 염기 치환이 도입된 플라스미드의 증폭 효율(즉, 청색 콜로니의 비율)에 대한, 염기 치환 도입용 올리고 뉴클레오티드의 농도의 영향을 검토한 결과를 나타낸 도면이다. 대장균 형질 전환 콜로니의 청백 판정의 결과를 나타낸다.
도 15a는, 염기 치환 도입전의 플라스미드를 특이적으로 절단하는 CRISPR-Cas9를 반응계에 첨가해 RCR을 행함으로써, 100%에 가까운 염기 치환 도입율이 얻어진 것을 나타낸 도면이다. 전기 영동의 결과를 나타낸 도면이다.
도 15b는, 염기 치환 도입전의 플라스미드를 특이적으로 절단하는 CRISPR-Cas9를 반응계에 첨가해 RCR을 행함으로써, 100%에 가까운 염기 치환 도입율이 얻어진 것을 나타낸 도면이다. 대장균 형질 전환 콜로니의 청백 판정의 결과를 나타낸다.
도 16a는, p0ri93Zins의 구조를 나타낸 도면이다.
도 16b는, 장쇄 DNA에 대해, 염기 치환이 도입된 플라스미드의 증폭 효율(즉, 청색 콜로니의 비율)에 대한, 염기 치환 도입용 올리고 뉴클레오티드의 농도의 영향을 검토한 결과를 나타낸 도면이다. 전기 영동의 결과를 나타낸다.
도 16c는, 장쇄 DNA에 대해, 염기 치환이 도입된 플라스미드의 증폭 효율(즉, 청색 콜로니의 비율)에 대한, 염기 치환 도입용 올리고 뉴클레오티드의 농도의 영향을 검토한 결과를 나타낸 도면이다. 대장균 형질 전환 콜로니의 청백 판정의 결과를 나타낸다.
도 17a는, 장쇄 DNA에 대해, 염기 치환 도입전의 플라스미드를 특이적으로 절단하는 CRISPR-Cas9를 반응계에 첨가해 RCR을 행함으로써, 100%에 가까운 염기 치환 도입율이 얻어진 것을 나타낸 도면이다. 전기 영동의 결과를 나타낸다.
도 17b는, 장쇄 DNA에 대해, 염기 치환 도입전의 플라스미드를 특이적으로 절단하는 CRISPR-Cas9를 반응계에 첨가해 RCR을 행함으로써, 100%에 가까운 염기 치환 도입율이 얻어진 것을 나타낸 도면이다. 대장균 형질 전환 콜로니의 청백 판정의 결과를 나타낸다.
도 18a는, 실시예 9에서 사용한 pPKOZins의 개시 코돈 근방의 부분 서열(서열 번호 61), 및 개변(3 염기 치환)용 올리고 뉴클레오티드(60 mer)의 서열(서열 번호 56)을 나타낸 도면이다.
도 18b는, 실시예 9에서 사용한 pPKOZ의 개시 코돈 근방의 부분 서열(서열 번호 62), 및 개변(4 염기 삽입)용 올리고 뉴클레오티드(60 mer)의 서열(서열 번호 57)을 나타낸 도면이다.
도 18c는, 3 염기 치환된 또는 4 염기 삽입된 플라스미드의 증폭 효율(3 염기 치환의 경우에는 청색 콜로니, 4 염기 삽입의 경우에는 백색 콜로니의 비율)에 대한, 개변(3 염기 치환 또는 4 염기 삽입)용 올리고 뉴클레오티드의 농도의 영향을 검토한 결과를 나타낸 도면이다. 전기 영동의 결과를 나타낸다.
도 18d는, 3 염기 치환된 플라스미드의 증폭 효율(즉, 청색 콜로니의 비율)에 대한, 개변(3 염기 치환)용 올리고 뉴클레오티드의 농도의 영향을 검토한 결과를 나타낸 도면이다. 대장균 형질 전환 콜로니의 청백 판정의 결과를 나타낸다.
도 18e는, 4 염기 삽입된 플라스미드의 증폭 효율(즉, 백색 콜로니의 비율)에 대한, 개변(4 염기 삽입)용 올리고 뉴클레오티드의 농도의 영향을 검토한 결과를 나타낸 도면이다. 대장균 형질 전환 콜로니의 청백 판정의 결과를 나타낸다.
도 18f는, pPKOZ(wt)의 EcoRI 절단 부위를 나타낸 도면이다.
도 18g는, pPKOZ4ins의 EcoRI 절단 부위를 나타낸 도면이다.
도 18h는, 4 염기 삽입된 플라스미드를 제한 효소 처리에 의해 확인한 결과를 나타낸 도면이다. 전기 영동의 결과를 나타낸다.
도 19a는, pK3OV_insAC의 구조를 나타낸다.
도 19b는, 실시예 10의 실험계를 나타낸 도면이다.
도 19c는, 실시예 10에서 사용한 pP3OV_insAC의 vioA ins의 서열(서열 번호 68), 및 염기 치환 도입용 올리고 뉴클레오티드(60 mer)의 서열(서열 번호 65, SUE4577)을 나타낸 도면이다.
도 19d는, 실시예 10에서 사용한 pP3OV_insAC의 vioC ins의 서열(서열 번호 69), 및 염기 치환 도입용 올리고 뉴클레오티드(60 mer)의 서열(서열 번호 66, SUE4381)을 나타낸 도면이다.
도 19e는, 2 부위 동시 염기 치환된 플라스미드의 비율(즉, 자색 콜로니의 비율)에 대한, 염기 치환 도입용 올리고 뉴클레오티드와의 반응 시간의 영향을 검토한 결과를 나타낸 도면이다. 대장균 형질 전환 콜로니의 색판정 결과를 나타낸다.
Claims (14)
- 무세포계에서 DNA를 편집하는 방법으로서, 이하의 공정:
(1) 무세포계에서 DNA의 표적 부위에 결실, 치환 또는 부가를 도입하는 공정과,
(2) 공정 (1)에서 결실, 치환 또는 부가가 도입된 DNA를, 무세포계에서 증폭시키는 공정을 포함하고,
여기에서 상기 DNA는 20℃∼80℃ 범위의 온도에서 인큐베이션하는 온도 조건하에서 증폭되는, 상기 방법. - 제1항에 있어서,
무세포계에서 DNA를 편집하는 방법으로서, 이하의 공정:
(1) 무세포계에서 DNA의 표적 부위에 결실, 치환 또는 부가를 도입하는 공정과,
(2) 공정 (1)에서 결실, 치환 또는 부가가 도입된 DNA를, 무세포계에서 증폭시키는 공정을 포함하고,
여기에서 상기 DNA는 등온에서 인큐베이션하거나 또는 65℃ 이하의 2개의 온도에서의 인큐베이션을 반복하는 온도 사이클하에서 인큐베이션하는 온도 조건하에서 증폭되는, 상기 방법. - 제1항 또는 제2항에 있어서,
무세포계에서 DNA를 편집하는 방법으로서, 이하의 공정:
(1) 무세포계에서 DNA의 표적 부위에 결실, 치환 또는 부가를 도입하는 공정과,
(2) 공정 (1)에서 결실, 치환 또는 부가가 도입된 DNA를, 무세포계에서 증폭시키는 공정을 포함하고,
여기에서 상기 DNA는 20℃∼80℃의 범위에 포함되는 일정한 온도에서 인큐베이션하거나 또는 65℃ 이하의 2개의 온도에서의 인큐베이션을 반복하는 온도 사이클하에서 인큐베이션하는 온도 조건하에서 증폭되는, 상기 방법. - 제1항 내지 제3항 중 어느 한 항에 있어서,
공정 (2)를, 결실, 치환 또는 부가가 도입되지 않은 DNA를 특이적으로 절단하는 인공 DNA 절단 효소의 존재하에서 행하는, 방법. - 제4항에 있어서,
인공 DNA 절단 효소가, 인공 뉴클레아제 또는 RNA 유도형 뉴클레아제인, 방법. - 제4항에 있어서,
인공 DNA 절단 효소가 CRISPR-Cas9인, 방법. - 제1항 내지 제6항 중 어느 한 항에 있어서,
DNA가 환상 DNA인, 방법. - 제7항에 있어서,
공정 (2)가, 이하의 공정:
(2-1) (a) 환상 DNA의 복제를 촉매하는 제1 효소군, (b) 오카자키 절편 연결 반응을 촉매해, 카테난을 형성하는 2개의 자매 환상 DNA를 합성하는 제2 효소군, 및 (c) 2개의 자매 환상 DNA의 분리 반응을 촉매하는 제3 효소군을 함유하는 반응 용액과, 공정 (1)에서 결실, 치환 또는 부가가 도입된 환상 DNA의 반응 혼합물을 조제하는 공정과,
(2-2) 공정 (2-1)에서 조제한 반응 혼합물을, 20℃∼80℃의 범위에 포함되는 일정한 온도에서 인큐베이션하거나 또는 65℃ 이하의 2개의 온도에서의 인큐베이션을 반복하는 온도 사이클하에서 인큐베이션하는 공정을 포함하는, 방법. - 제8항에 있어서,
환상 DNA가, DnaA 활성을 갖는 효소와 결합 가능한 복제 개시 서열을 포함하는, 방법. - 제7항에 있어서,
공정 (2)에서, 환상 DNA가 롤링 써클 증폭에 의해 증폭되는, 방법. - 제1항 내지 제10항 중 어느 한 항에 있어서,
공정 (1)이, 이하의 공정:
(1-1) 인공 DNA 절단 효소를 DNA에 작용시킴으로써, 상기 DNA를 표적 부위에서 절단해, 적어도 하나의 직쇄 DNA를 조제하는 공정과,
(1-2) 공정 (1-1)에서 조제된 직쇄 DNA, 1종류 이상의 DNA 단편, 및 RecA 패밀리 재조합 효소 활성을 갖는 단백질을 함유하는 반응 용액을 조제하는 공정과,
(1-3) 상기 직쇄 DNA와 상기 1종류 이상의 DNA 단편을 염기서열이 상동인 영역끼리 또는 염기서열이 상보적인 영역끼리 서로 연결시켜, 주형 DNA의 표적 부위에 상기 1종류 이상의 DNA 단편이 삽입된 DNA를 형성시키는 공정을 포함하는, 방법. - 제1항 내지 제10항 중 어느 한 항에 있어서,
공정 (1)이, 결실, 치환 또는 부가 도입용 단일가닥 DNA의 존재하에서 DNA 복제 반응을 실시하는 공정을 포함하고,
여기에서 상기 단일가닥 DNA는 복제 반응의 조건하에서 상기 DNA의 표적 부위에 교잡할 수 있는, 방법. - 제1항 내지 제12항 중 어느 한 항에 있어서,
공정 (2)에서, DNA가 30℃ 이상에서의 인큐베이션 및 27℃ 이하에서의 인큐베이션을 반복하는 온도 사이클하에서 인큐베이션하는 온도 조건하에서 증폭되는, 방법. - 제1항 내지 제13항 중 어느 한 항에 있어서,
결실, 치환 또는 부가가 도입된 DNA의 사이즈가, 50 kb 이상인, 방법.
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