KR101624345B1 - 발현 시스템 - Google Patents
발현 시스템 Download PDFInfo
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- KR101624345B1 KR101624345B1 KR1020147026047A KR20147026047A KR101624345B1 KR 101624345 B1 KR101624345 B1 KR 101624345B1 KR 1020147026047 A KR1020147026047 A KR 1020147026047A KR 20147026047 A KR20147026047 A KR 20147026047A KR 101624345 B1 KR101624345 B1 KR 101624345B1
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Abstract
Description
도 2: hTNFα의 축적된 수준
도 3: CLD038 균주의 웨스턴 블롯 분석
도 4: CLD030 균주에 대한 hTNFα 생산성 프로파일
도 5: bsctDb 서열
도 6: 삽입물의 서열 (서열번호 23)
도 7: 삽입물의 서열 (서열번호 24)
도 8: 삽입물의 서열 (서열번호 25)
도 9: hadL 유전자 서열 (서열번호 26)
도 10: HadL 단백질의 발현 및 축적
도 11: 유도 후 CLD075의 성장 및 HadL 단백질의 발현/축적
도 12: hCMV 프로모터 및 두 개의 완전한 팔린드롬 lac 작동자의 DNA 서열
(서열번호 33)
도 13: IgG Fc 단백질의 DNA 서열 (서열번호 34)
도 14: IgG Fc 발현
도 15: 클론 서열 1 (서열번호 35)
도 16: 클론 서열 2 (서열번호 36)
도 17: hTNFα의 축적
도 18: pAVE013의 플라스미드 맵
| 플라스미드 | 프로모터 | 작동자 시스템 | 비고 |
| pAVE041 | tac | 하나의 원형의 lac 서열 | |
| pAVE017 | tac | 두 개의 완전한 팔린드롬 서열(DPPS) | 작동자 간격 91 bp(DPPS91) |
| pAVE040 | tac | 하나의 완전한 팔린드롬 서열(SPPS) | |
| pAVE049 | tac | 두 개의 완전한 팔린드롬 서열 | 작동자 간격 124 bp(DPPS124) |
| pAVE013 | T7A3 | 두 개의 완전한 팔린드롬 서열 | 작동자 간격 91 bp(DPPS91) |
| pAVE030 | T7A3 | 두 개의 완전한 팔린드롬 서열 | 작동자 간격 92 bp(DPPS92) |
| pAVE031 | T7A3 | 하나의 완전한 팔린드롬 서열 | |
| pAVE021 | λpL | 두 개의 완전한 팔린드롬 서열 | 작동자 간격 91 bp(DPPS91) |
| pAVE035 | λpL | 두 개의 완전한 팔린드롬 서열 | 작동자 간격 92 bp(DPPS92) |
| pAVE027 | λpL | 하나의 완전한 팔린드롬 서열 | |
| pAVE046 | λpL | 하나의 완전한 팔린드롬 서열 | 분비 벡터 |
| 시간(시) | hTNFα의 축적 수준(%TCP*) |
| 3 | 2 |
| 4 | 18 |
| 6 | 25 |
| 8 | 33 |
| 24 | 42 |
| 24(기초 수준, IPTG 불포함) | 13 |
| 시간(시) | hTNFα의 축적 수준(%TCP*) |
| 4 | 2 |
| 6 | 5 |
| 8 | 9 |
| 24 | 12 |
| 24(기초 수준, IPTG 불포함) | 검출되지 않음 |
| 분석 | hTNFα 축적-CLD021(λpL:DPPS91) | hTNFα 축적-CLD038λpL:DPPS92) |
| 콜로이달 블루 SDS-PAGE (IPTG 유도 후) |
검출되지 않음 | 검출되지 않음 |
| 웨스턴 블롯 (IPTG 유도 후) |
양성 | 양성(도 2 참조) |
| 콜로이달 블루 SDS-PAGE (IPTG 유도 없는 기초 수준, 24시간)후) |
검출되지 않음 | 검출되지 않음 |
| 웨스턴 블롯 (IPTG 유도 없는 기초 수준, 24시간) |
검출되지 않음 | 검출되지 않음 |
| 공급물의 성분 | 정제수 기준, 필요한 양[g/L] |
| 글리세롤 | 714 |
| MgSO4.7H2O | 7.4 |
| 균주 | 발현 벡터 설명 | 회수(harvest)시 OD600 |
회수시 hTNFα 축적(%TCP) |
회수시 hTNFα 역가(mg/L) |
| CLD018 | T7A3 프로모터, 91 bp 간격의 두 개의 완전한 팔린드롬 | 147 | 29 | 8400 |
| CLD026 | T7A3 프로모터, 92 bp 간격의 두 개의 완전한 팔린드롬 | 204 | 34 | 11400 |
| CLD032 | T7A3 프로모터, 하나의 완전한 팔린드롬 서열 | 194 | 41 | 12500 |
| CLD019 | tac 프로모터, 91 bp 간격의 두 개의 완전한 팔린드롬 | 196 | 22 | 8300 |
| CLD030 | 하나의 완전한 팔린드롬 서열을 갖는 λpL 프로모터 | 167 | 7 | 2600 |
| 유도 후 시간(시) | hTNFαDML 축적 수준(%TCP) |
| 4 | 16 |
| 24(기초, IPTG 불포함) | 검출되지 않음 |
| 분획 | 생물학적 활성 D1.3 Fab(㎍/L 배양액/OD) |
| 잔여 성장 배지(residual growth medium) | 460 |
| 주변세포질(periplasm) | 4020 |
| 전체(잔여 성장 배지 + 주변세포질) | 4480 |
| 분획 | 생물학적 활성 D1.3 Fab(mg/L 배양액/OD) |
| 잔여 성장 배지 | 525 |
| 주변세포질 | 57 |
| 전체(잔여 성장 배지 + 주변세포질) | 582 |
| 시료 | CEA 경쟁 ELISA에서 % 억제 | D1.3 경쟁 ELISA에서 % 억제 |
| 대조구 (D1.3-A5B7 bsctDb 불포함) |
없음 | 없음 |
| 0.5 mM IPTG로 유도된 배양액의 상층액 | 100 | 100 |
| 0.1 mM IPTG로 유도된 배양액의 상층액 | 부분적 | 부분적 |
Claims (14)
- 하나 이상의 완전한 팔린드롬 작동자 서열에 작동 가능하게 연결된, 프로모터를 포함하는 벡터에 의해 형질전환된 대장균 숙주 세포를 포함하는 단백질 발현 시스템으로서,
상기 프로모터는 대장균 RNA 폴리머라아제 프로모터이고, 완전한 팔린드롬 작동자 서열은 전사 개시 지점과 중첩되는 것을 특징으로 하는 단백질 발현 시스템. - 하나 이상의 완전한 팔린드롬 작동자 서열에 작동 가능하게 연결된, 프로모터를 포함하는 대장균 벡터로서,
상기 프로모터는 대장균 RNA 폴리머라아제 프로모터이고, 완전한 팔린드롬 작동자 서열은 전사 개시 지점과 중첩되는 것을 특징으로 하는 대장균 벡터. - 청구항 2에 있어서, 단백질의 발현을 위한 발현 카세트를 더 포함하는 것인 벡터.
- 청구항 3에 있어서, 상기 벡터는 플라스미드인 것인 벡터.
- 청구항 2에서 청구된 벡터에 의해 형질전환된 대장균 숙주 세포.
- 하나 이상의 완전한 팔린드롬 작동자 서열에 작동 가능하게 연결되고, 재조합 단백질의 발현을 위한 발현 카세트에 작동 가능하게 연결된, 프로모터를 포함하는 벡터에 의해 형질전환된 대장균 숙주 세포를 포함하는 발현 시스템을 발현시키는 단계를 포함하는, 재조합 단백질을 생산하는 방법으로서,
상기 프로모터는 대장균 RNA 폴리머라아제 프로모터이고, 완전한 팔린드롬 작동자 서열은 전사 개시 지점과 중첩되는 것을 특징으로 하는 방법. - 청구항 6에 있어서, 상기 작동자 서열은 lac, gal, deo 또는 gln인 것인 방법.
- 청구항 6에 있어서, 상기 프로모터의 하류에 위치한 하나의 완전한 팔린드롬 작동자 서열이 이용되는 것인 방법.
- 청구항 6에 있어서, 상기 프로모터는 T7A1, T7A2, T7A3, λpL, λpR, lac, lacUV5, trp, tac, trc, phoA 및 rrnB로 구성된 군으로부터 선택되는 것인 방법.
- 청구항 9에 있어서, 상기 프로모터는 T7A3, λpL 또는 tac이고, 상기 전사 개시 지점과 중첩된 작동자 서열은 서열 GGAATTGTGAGCGCTCACAATTCC (서열번호 3의 51번 내지 74번 염기)를 갖는 것인 방법.
- a) 청구항 3에 따른 벡터에 의해 형질전환된 대장균 숙주 세포를 배양하는 단계, 및
b) 단백질을 회수하는 단계를 포함하는, 단백질 생산 방법. - 청구항 11에 있어서, 상기 숙주 세포는 대장균 B (E. coli B)또는 K12 (E. coli K12) 균주인 것인 방법.
- 청구항 11에 있어서, 상기 벡터는 청구항 4에서 청구된 벡터인 것인 방법.
- 청구항 11에 있어서, 상기 프로모터는 λpL, tac 또는 T7A3인 것인 방법.
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| GB201209896D0 (en) | 2012-06-01 | 2012-07-18 | Fujifilm Diosynth Biotechnologies Uk Ltd | Process |
| TW201514193A (zh) | 2013-01-31 | 2015-04-16 | Glaxo Group Ltd | 製備蛋白質之方法 |
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