KR101416071B1 - 인공간섭 펩티드를 이용한 표적 전사인자 비활성화 방법 및 이의 용도 - Google Patents
인공간섭 펩티드를 이용한 표적 전사인자 비활성화 방법 및 이의 용도 Download PDFInfo
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Abstract
Description
도 2는 SOC1 및 SOC1의 다운스트림 (downstream) 유전자의 전사체 축적을 나타낸다. 1/2 MS 한천 배지 (1/2 x Murashige and Skoog-agar plate)에서 장일조건 (LD)으로 2주 동안 키운 식물체는 총 RNA 추출을 위해 사용되었다. AP1, CAL, FUL, LFY 및 SPL과 같은 SOC1의 다운스트림에서 작동하는 유전자 및 S-K 도메인을 코딩하는 유전자의 mRNA 수준은 qRT-PCR로 측정되었다. 동일한 실험을 3번 반복하여 평균을 구했고, Student's t-test를 사용하여 통계 처리하였다 (*P<0.01). 막대는 평균의 표준 오차를 나타낸다.
도 3은 a-siPEP에 의한 SOC1의 경쟁적 억제를 나타낸다. (a) 효모 세포에서 절단형 (truncated) SOC1 단백질과 SOC1의 상호작용. Leu, Trp, His, 및 Ade가 없는 선택 배지 (-QD)에서 세포 성장은 양성 (positive) 상호작용을 나타낸다 (위쪽 패널). β-Gal 활성을 3번 측정하여 평균을 구했고, 통계 처리하였다 (아래쪽 패널). 다른 문자는 P<0.05에서 유의차를 나타낸다 (one-way ANOVA with Fisher's post hoc test). (b) 시험관 내 풀-다운 분석 (pull-down assay). 말토스 결합 단백질 (MBP)-코딩 서열은 SOC1 유전자의 5' 말단에 인프레임 (in-frame)으로 융합되었고, 재조합 MBP-SOC1 융합 단백질은 E. coli 세포에서 준비되었다. 35S-표지 SOC1 폴리펩티드는 시험관 내 번역으로 준비되었다. 위쪽 패널은 쿠마시-염색 젤의 일부를 나타낸다. 화살표는 재조합 MBP-SOC1 단백질을 나타낸다. (c) 효모-3-혼성체 (yeast three-hybrid) 분석. 절단형 SOC1 유전자는 메티오닌 (Met)-억제 프로모터 (pMET25)에 의해서 조절된다. AD: 활성화 도메인, BD: DNA 결합 도메인. 절단형 SOC1 유전자는 Leu, Trp, 및 His가 없는 선택배지 (-LWH)에서는 발현되지 않지만, Leu, Trp, His, 및 Met가 없는 선택배지 (-LWHM)에서는 발현되는 것을 나타낸다. Met가 있거나 없는 배지에서 β-Gal 활성을 3번 측정하여 평균을 구했고, 통계 처리하였다 (t-test, *P<0.01). (d) BiFC 분석. 부분적인 YFP 융합 구축물은 애기장대 원형질체에서 일시적으로 발현되었다. 스케일 바 = 10 ㎛. (e) 리포터 (reporter) 벡터 및 효과기 벡터는 애기장대 원형질체에서 일시적 발현 분석을 위해 사용되었다. (f) SOC1의 전사 활성에 대한 절단형 SOC1 단백질의 효과. GAL4 일시적 발현 분석은 이전에 기재된 방법으로 수행되었다 (Yang et al ., Plant Cell , 23, 2155-2168, 2011). ARF5M 및 ARF1M은 각각 전사 활성제 및 억제제 대조구이다. 동일한 실험을 3번 반복하여 평균을 구하고 통계 처리하였다. 다른 문자는 P<0.05에서 유의차를 나타낸다 (one-way ANOVA with Fisher's post hoc test).
도 4는 다양한 AG 유전자 구축물을 과발현하는 형질전환 식물체의 표현형을 나타낸다. (a) 사용된 애기장대 AG 단백질 구축물. 숫자는 잔기 위치를 나타낸다. AG 이합체 형성에 필수적인 Q-126은 AG-mK 구축물에서 H로 변이되었다. 화살표 및 막대 표시는 각각 AG 및 AG -K 전사체를 검출하기 위해 사용된 AG 및 AG-K 프라이머의 위치를 나타낸다. aa: 아미노산. (b) 다양한 AG 유전자 구축물을 과발현하는 형질전환 애기장대 식물의 꽃 형태. 형질전환 애기장대 식물의 완전히 개화한 꽃을 촬영한 사진이다. AG-결핍 ag -3 돌연변이체는 비교를 위해 포함되었다. (c) AG 다운스트림 유전자의 mRNA 수준. DAD1 및 GIK 유전자의 mRNA 수준은 qRT-PCR로 측정되었다. 동일한 실험을 3번 반복하여 평균을 구했고, Student's t-test를 사용하여 통계 처리하였다 (*P<0.01). 막대는 평균의 표준 오차를 나타낸다. (d) Col-0 및 AG-K-ox 형질전환 애기장대 식물체에서 AG 및 AG -K 유전자의 mRNA 수준. mRNA 수준은 (a)에 기재된 프라이머 쌍을 이용하여 qRT-PCR로 측정되었다. 동일한 실험을 3번 반복하여 평균을 구하고, 통계 처리하였다. 다른 문자는 P<0.05에서 유의차를 나타낸다 (one-way ANOVA with Fisher's post hoc test). 막대는 평균의 표준 오차를 나타낸다. y-축은 배수 변화의 더 나은 비교를 위해 로그 스케일 (logarithmic scale)로 표시하였다.
도 5는 숲개밀 (Brachypodium) 개화에서 a-siPEP에 의한 BdSOC1의 표적 비활성화를 나타낸다. (a) 사용된 숲개밀 SOC1 구축물. 숫자는 잔기의 위치를 나타낸다. 화살표 및 막대 표시는 각각 BdSOC1 및 BdS -K 전사체를 검출하기 위해 사용된 BdSOC1 및 BdS-K 프라이머의 위치를 나타낸다. aa: 아미노산. (b 및 c) BdSOC1 유전자를 과발현하는 숲개밀 식물체의 표현형 및 개화. 토양에서 8주 동안 키운 식물체를 촬영한 사진이다 (b). 흰색 화살표는 출수 (heading)를 나타낸다. 개화 시간은 출수가 일어날 때까지의 일 수를 계산하여 측정하였다 (c). 20개 식물체의 평균을 구하고, 통계 처리하였다. 다른 문자는 P<0.05에서 유의차를 나타낸다 (one-way ANOVA with Fisher's post hoc test). (d) BdSOC1 및 BdSOC1 다운스트림 유전자의 발현. BdAP1, BdCAL, BdFUL, BdLFY 및 BdSPL8과 같은 BdSOC1의 다운스트림에 작용하는 유전자 및 BdS-K 도메인 코딩 유전자 (BdS -K)의 mRNA 수준은 qRT-PCR로 측정되었다. 동일한 실험을 3번 반복하여 평균을 구했고, Student's t-test를 사용하여 통계 처리하였다 (*P<0.01). 막대는 평균의 표준 오차를 나타낸다.
도 6은 a-siPEP에 의한 핵 내에 위치하는 BdSOC1의 감소를 나타낸다. (a) 시험관 내 풀-다운 (pull-down) 분석. BdSOC1 단백질은 E. coli 세포에서 재조합 BdSOC1-MBP 융합 단백질로 준비되었다. 35S-표지 BdSOC1 폴리펩티드는 시험관 내 번역으로 준비되었다. 아래쪽 패널은 쿠마시-염색 젤의 일부를 나타낸다. (b) BiFC 분석. 부분적인 YFP 융합 구축물은 숲개밀 원형질체에서 일시적으로 발현되었다. 스케일 바 = 10 ㎛.
도 7은 생체 주기 (circadian clock) 조절에서 LHY 활성의 a-siPEP 매개 억제를 나타낸다. (a) LHY 단백질의 도메인 구조. 숫자는 잔기 위치를 나타낸다. DD: 이합체 형성 도메인, aa: 아미노산. (b) LHY - DD - ox 형질전환 식물체에서 TOC1 유전자 발현 주기 기록. 1/2 MS 한천 배지에서 중일 (neutral day) 조건 (12시간 광, 12시간 암)으로 10일 동안 키운 식물체를 지속적 광 조건으로 옮겼다. 두 독립적인 LHY-DD-ox 형질전환 라인이 분석에 사용되었다. 전체 식물은 72시간까지 차이트게버 (zeitgeber) 시간 (ZT) 지점에 수확되었고, 유전자 전사체 수준은 qRT-PCR로 측정되었다. 동일한 실험을 3번 반복하여 평균을 구하고, 통계 처리하였다. 막대는 평균의 표준 오차를 나타낸다.
도 8은 a-siPEP의 작용 기작 모델을 나타낸다. a-siPEP는 표적 전사인자 (TF)와 비기능적 이형이합체 (heterodimer)를 형성하여 핵(N)으로부터 격리 (sequestration) 및/또는 DNA 결합 억제를 초래한다. P: 프로모터, C: 세포질.
프라이머 | 용도 | 염기서열 | 서열번호 |
eIF4a-F | qRT-PCR | 5'-TGACCACACAGTCTCTGCAA | 서열번호 9 |
eIF4a-R | qRT-PCR | 5'-ACCAGGGAGACTTGTTGGAC | 서열번호 10 |
SOC1-F | qRT-PCR | 5'-GGATCTCATGAAAGCGAAGTTT | 서열번호 11 |
SOC1-R | qRT-PCR | 5'-TCACTTTCTTGAAGAACAAGGTA | 서열번호 12 |
SOC1-K-F | qRT-PCR | 5'-AAGAAAATATGCAGCATTTGAAATA | 서열번호 13 |
SOC1-K-R | qRT-PCR | 5'-CCTATGCCTTCTCCCAAGAGT | 서열번호 14 |
AP1-F | qRT-PCR | 5'-TGATGCTGAAGTTGCTCTTGTT | 서열번호 15 |
AP1-R | qRT-PCR | 5'-CGACCAGTTTGTATTGACGTCG | 서열번호 16 |
CAL-F | qRT-PCR | 5'-GGGAAGGGGTAGGGTTGAAT | 서열번호 17 |
CAL-R | qRT-PCR | 5'-ACAATAAGGGAAACCTCGGC | 서열번호 18 |
FUL-F | qRT-PCR | 5'-ATGATGGAACTCCGTTGTCG | 서열번호 19 |
FUL-R | qRT-PCR | 5'-TTCATGAGAAATCATTACCAAGATATG | 서열번호 20 |
LFY-F | qRT-PCR | 5'-TTACTGGGACGCAGGTCAAG | 서열번호 21 |
LFY-R | qRT-PCR | 5'-CCCAAACCACTACCTCCGTT | 서열번호 22 |
SPL3-F | qRT-PCR | 5'-ACAATGCAGCAGGTTTCACG | 서열번호 23 |
SPL3-R | qRT-PCR | 5'-CTTTTCCGCCTTCTCTCGTT | 서열번호 24 |
SPL5-F | qRT-PCR | 5'-GATCAGATAAACCCTCCCGC | 서열번호 25 |
SPL5-R | qRT-PCR | 5'-ACCATGACCAACTTTTCTTGACA | 서열번호 26 |
SPL8-F | qRT-PCR | 5'-CGCCGTAAATGTCACCAATC | 서열번호 27 |
SPL8-R | qRT-PCR | 5'-GAAGACGCTGTCGTTTGGAA | 서열번호 28 |
AG-F | qRT-PCR | 5'-TCAACCGTTTGATTCACGG | 서열번호 29 |
AG-R | qRT-PCR | 5'-TTACACTAACTGGAGAGCGGTTT | 서열번호 30 |
AG-K-F | qRT-PCR | 5'-CTCAGGAACTTGGAAGGCAG | 서열번호 31 |
AG-K-R | qRT-PCR | 5'-ATCAACTTCTCTTTTCTGCATGTAGT | 서열번호 32 |
DAD1-F | qRT-PCR | 5'-TTCGTGCCACGTCAGGTATT | 서열번호 33 |
DAD1-R | qRT-PCR | 5'-TCTTTGTCCTGGCAAACTGC | 서열번호 34 |
GIK-F | qRT-PCR | 5'-GTAATGGTCATGGCAGCGTC | 서열번호 35 |
GIK-R | qRT-PCR | 5'-ACATATTCCCTCCACCTCCG | 서열번호 36 |
TOC1-F | qRT-PCR | 5'-TCTTCGCAGAATCCCTGTGAT | 서열번호 37 |
TOC1-R | qRT-PCR | 5'-GCTGCACCTAGCTTCAAGCA | 서열번호 38 |
S-M-F | Subcloning | 5'-AAAAAGCAGGCTCTATGGTGAGGGGCAAAACT | 서열번호 39 |
S-M-R | Subcloning | 5'-AGAAAGCTGGGTTTCAGGAGCTGGCGAATTCATA | 서열번호 40 |
S-MIK-F | Subcloning | 5'-AAAAAGCAGGCTCTATGGTGAGGGGCAAAACT | 서열번호 41 |
S-IK-F | Subcloning | 5'-AAAAAGCAGGCTCTATGAAGAAAGCCTTTGAGCTCTCA | 서열번호 42 |
S-K-F | Subcloning | 5'-AAAAAGCAGGCTCTATGGTTTCTGAAGAAAATATGCAGC | 서열번호 43 |
S-K-R | Subcloning | 5'-AGAAAGCTGGGTTTCACCACTTTTCAGAGAGCTTCTC | 서열번호 44 |
AG-F | Subcloning | 5'-AAAAAGCAGGCTCTATGACGGCGTACCAATCGG | 서열번호 45 |
AG-R | Subcloning | 5'-AGAAAGCTGGGTTTTACACTAACTGGAGAGCGGT | 서열번호 46 |
AG-M-F | Subcloning | 5'-AAAAAGCAGGCTCTATGGGGAGAGGAAAGATCGAAATCAAACGG | 서열번호 47 |
AG-M-R | Subcloning | 5'-AGAAAGCTGGGTTTTAGTTGTTAGAGTACTCATAGAGACGACCACG | 서열번호 48 |
AG-I-F | Subcloning | 5'-AAAAAGCAGGCTCTATGAGTGTAAAAGGGACTATTGAGAGGT | 서열번호 49 |
AG-I-R | Subcloning | 5'-AGAAAGCTGGGTTTTAGTCCGATATTGCCTTCTTGTACCTCTC | 서열번호 50 |
AG-K-F | Subcloning | 5'-AAAAAGCAGGCTCTATGAATTCTAACACCGGATCGGTGGCAGAA | 서열번호 51 |
AG-K-R | Subcloning | 5'-AGAAAGCTGGGTTTTAATCAACTTCTCTTTTCTGCATGTAGTCGATTTC | 서열번호 52 |
AG-C-F | Subcloning | 5'-AAAAAGCAGGCTCTATGTTGCATAACGATAACCAGATTCTTC | 서열번호 53 |
LHY-DD-F | Subcloning | 5'-AAAAAGCAGGCTCTATGAATACTCCTTATCCTCGAAAGCCTG | 서열번호 54 |
LHY-DD-R | Subcloning | 5'-AGAAAGCTGGGTTTTAAGCCCACCAAGCAGTTGC | 서열번호 55 |
SOC1-F | Y2H | 5'-GGAATTCCATATGATGGTGAGGGGCAAAAC | 서열번호 56 |
SOC1-R | Y2H | 5'-CGGGATCCTCACTTTCTTGAAGAACAAGGTA | 서열번호 57 |
S-MIK-F | Y2H | 5'-GGAATTCCATATGATGGTGAGGGGCAAAAC | 서열번호 58 |
S-IK-F | Y2H | 5'-GGAATTCCATATGAAGAAAGCCTTTGAGCTCTC | 서열번호 59 |
S-K-F | Y2H | 5'-GGGAATTCGTTTCTGAAGAAAATATGCAGC | 서열번호 60 |
S-K-R | Y2H | 5'-CGGGATCCCCACTTTTCAGAGAGCTTCTC | 서열번호 61 |
S-MIK-F | Y3H | 5'-TCAGCGGCCGCGATGGTGAGGGGCAAAAC | 서열번호 62 |
S-IK-F | Y3H | 5'-TCAGCGGCCGCGATGAAGAAAGCCTTTGAGCTC | 서열번호 63 |
S-K-F | Y3H | 5'-TCAGCGGCCGCGATGGTTTCTGAAGAAAATATGCA | 서열번호 64 |
S-K-R | Y3H | 5'-GAAGATCTTCACCACTTTTCAGAGAGCTTC | 서열번호 65 |
SOC1-nEYFP-F | BiFC | 5'-CCGCTCGAGGGATGGTGAGGGGCAAAACTCA | 서열번호 66 |
SOC1-nEYFP-R | BiFC | 5'-CGGGATCCTCACTTTCTTGAAGAACAAGGTAACC | 서열번호 67 |
SOC1-cEYFP-R | BiFC | 5'-GCGGATCCCCCTTTCTTGAAGAACAAGGTAACCC | 서열번호 68 |
S-MIK-cEYFP-F | BiFC | 5'-CCGCTCGAGCATGGTGAGGGGCAAAACTCA | 서열번호 69 |
S-IK-cEYFP-F | BiFC | 5'-CCGCTCGAGCATGAAGAAAGCCTTTGAGCTCTCA | 서열번호 70 |
S-K-cEYFP-F | BiFC | 5'-CCGCTCGAGCATGGTTTCTGAAGAAAATATGCAG | 서열번호 71 |
S-K-cEYFP-R | BiFC | 5'-GCGGATCCCCCACTTTTCAGAGAGCTTCTCGTTT | 서열번호 72 |
SOC1-F | TAA | 5'-TCCCCCGGGGATGGTGAGGGGCAAAACTC | 서열번호 73 |
SOC1-R | TAA | 5'-TCCCCCGGGTCACTTTCTTGAAGAACAAGGTAAC | 서열번호 74 |
프라이머 | 용도 | 염기서열 | 서열번호 |
BdUBC18-F | qRT-PCR | 5'-GGAGGCACCTCAGGTCATTT | 서열번호 75 |
BdUBC18-R | qRT-PCR | 5'-ATAGCGGTCATTGTCTTGCG | 서열번호 76 |
BdSOC1-F | qRT-PCR | 5'-TACGCTGGTGACCTCTGCTC | 서열번호 77 |
BdSOC1-R | qRT-PCR | 5'-GGTTCTCCTCCTCCTCCTCC | 서열번호 78 |
BdS-K-F | qRT-PCR | 5'-AAGAGCCTTCGTAGCATCAGG | 서열번호 79 |
BdS-K-R | qRT-PCR | 5'-CGCAACGTCATCTCCTTCTG | 서열번호 80 |
BdAP1-F | qRT-PCR | 5'-CAAGATAAACCGGCAGGTGA | 서열번호 81 |
BdAP1-R | qRT-PCR | 5'-CCCTTGGTGGAGAAGACGAT | 서열번호 82 |
BdCAL-F | qRT-PCR | 5'-TTCGCCACCGACTCATGTAT | 서열번호 83 |
BdCAL-R | qRT-PCR | 5'-CGTGACACCAGTTTCCCTGA | 서열번호 84 |
BdFUL-F | qRT-PCR | 5'-GCAGGAGGAGAACAAGGCTC | 서열번호 85 |
BdFUL-R | qRT-PCR | 5'-CTGTTCCCACTGCACTTGCT | 서열번호 86 |
BdLFY-F | qRT-PCR | 5'-GAAGTGTTGTCGAACGAGCG | 서열번호 87 |
BdLFY-R | qRT-PCR | 5'-CCATTCCTCTGCTTCTTCCC | 서열번호 88 |
BdSPL8-F | qRT-PCR | 5'-TACGACAGCTTCGACTTCGC | 서열번호 89 |
BdSPL8-R | qRT-PCR | 5'-GGGTGGTGGAGTAGGTTGCT | 서열번호 90 |
BdSOC1-F | Subcloning | 5'-GCTCTAGAATGCAGGCAGGCCGGCTCGATCGG | 서열번호 91 |
BdSOC1-R | Subcloning | 5'-GCGGATCCGAGAGCGATTTCTGCCGGGCAGTC | 서열번호 92 |
BdS-MK1-F | Subcloning | 5'-GCTCTAGAATGGTGCGGGGGAAGACGCAGCTG | 서열번호 93 |
BdS-MK2-F | Subcloning | 5'-GCTCTAGAATGAAGGCGCACGAGCTCTCCGTCCTCTG | 서열번호 94 |
BdSOC1-K-F | Subcloning | 5'-GCTCTAGAATGACGGCACAGCAAGACATAG | 서열번호 95 |
BdSOC1-K-R | Subcloning | 5'-GCGGATCCGCACCTTGCCCCTTAGATCTTCGTTCTC | 서열번호 96 |
BdSOC1-F | in vitro translation | 5'-CGCGCGATCGCATGCAGGCAGGCCGGCTCGATCGG | 서열번호 97 |
BdSOC1-R | in vitro translation | 5'-TCGTTTAAACTCAAGAGCGATTTCTGCCGGGCAGTC | 서열번호 98 |
BdS-MK1-F | in vitro translation | 5'-CGCGCGATCGCATGGTGCGGGGGAAGACGCAGCTGAAG | 서열번호 99 |
BdS-MK2-F | in vitro translation | 5'-CGCGCGATCGCATGAAGGCGCACGAGCTCTCCGTCC | 서열번호 100 |
BdS-K-F | in vitro translation | 5'-CGCGCGATCGCATGACGGCACAGCAAGACATAG | 서열번호 101 |
BdS-K-R | in vitro translation | 5'-TCGTTTAAACTCACACCTTGCCCCTTAGATCTTCGTTC | 서열번호 102 |
BdSOC1-F | MBP/GFP fusion | 5'-AAAAAGCAGGCTCTATGCAGGCAGGCCGGCTCGATCGGAGAGG | 서열번호 103 |
BdSOC1-R | MBP/GFP fusion | 5'-AGAAAGCTGGGTTTCAAGAGCGATTTCTGCCGGGCAGTCCGATGAACAGCTC | 서열번호 104 |
BdS-M-F | GFP fusion | 5'-AAAAAGCAGGCTCTATGGTGCGGGGGAAGACGCAGCTGAAGCGG | 서열번호 105 |
BdS-M-R | GFP fusion | 5'-AGAAAGCTGGGTTTCAGCTGGCGAACTCGTAGAGGCGGCCGCTGGGGG | 서열번호 106 |
BdS-MK1-F | GFP fusion | 5'-AAAAAGCAGGCTCTATGGTGCGGGGGAAGACGCAGCTGAAGCGG | 서열번호 107 |
BdS-MK2-F | GFP fusion | 5'-AAAAAGCAGGCTCTATGAAGGCGCACGAGCTCTCCGTCCTCTGCG | 서열번호 108 |
BdS-K-F | GFP fusion | 5'-AAAAAGCAGGCTCTATGACGGCACAGCAAGACATAGAGAAGATAA | 서열번호 109 |
BdS-K-R | GFP fusion | 5'-AGAAAGCTGGGTTTTACACCTTGCCCCTTAGATCTTCGTTCTCCTTG | 서열번호 110 |
BdS-K-F | GST fusion | 5'-CGGGATCCATGACGGCACAGCAAGACATAG | 서열번호 111 |
BdS-K-R | GST fusion | 5'-GGAATTCCTTACACCTTGCCCCTTAGATCTTCG | 서열번호 112 |
BdSOC1-F | BiFC | 5'-TCGAATTCTATGCAGGCAGGCCGGCTCGATCGG | 서열번호 113 |
BdSOC1-R | BiFC | 5'-GGTGGATCCTCAAGAGCGATTTCTGCCGGGCAGTC | 서열번호 114 |
BdS-MK1-F | BiFC | 5'-GCTCAAGCTTCGATGGTGCGGGGGAAGACGCAGCTGAAG | 서열번호 115 |
BdS-MK2-F | BiFC | 5'-GCTCAAGCTTCGATGAAGGCGCACGAGCTCTCCGTCCTCTG | 서열번호 116 |
BdS-K-F | BiFC | 5'-GCTCAAGCTTCGATGACGGCACAGCAAGACATAGAGAAGATA | 서열번호 117 |
BdS-K-R | BiFC | 5'-CGCGGTACCTTACACCTTGCCCCTTAGATCTTCGTTCTCCTTG | 서열번호 118 |
Claims (20)
- 서열번호 1 내지 4 중에서 선택된 어느 하나의 아미노산 서열로 이루어진 식물체 전사인자의 이합체 형성 도메인 (dimerization domain)을 필수적으로 포함하면서, 상기 전사인자의 절단형 (truncated form)인 것을 특징으로 하는 인공간섭 펩티드 (a-siPEP; artificial small interfering peptide)를 코딩하는 유전자를 포함하는 재조합 식물 벡터로 형질전환되어 전사인자의 활성이 저해된 식물체.
- 제1항에 있어서, 상기 인공간섭 펩티드는 전사인자와 비기능적 (nonfunctional) 이합체를 형성하여 전사인자의 활성을 저해하는 것을 특징으로 하는 전사인자의 활성이 저해된 식물체.
- 제1항에 있어서, 상기 인공간섭 펩티드는 전사인자의 DNA 결합 또는 핵 내로의 이동을 저해하여 전사인자의 활성을 저해하는 것을 특징으로 하는 전사인자의 활성이 저해된 식물체.
- 제1항에 있어서, 상기 전사인자는 DNA 결합 도메인 및 이합체 형성 도메인(단백질-단백질 상호작용 매개 도메인)을 포함하는 것을 특징으로 하는 전사인자의 활성이 저해된 식물체.
- 제4항에 있어서, 상기 전사인자는 DNA 결합 도메인, 이합체 형성 도메인(단백질-단백질 상호작용 매개 도메인), 전사인자의 동형이합체 형성 기여 (contribution) 도메인 및 전사조절 도메인을 포함하는 것을 특징으로 하는 전사인자의 활성이 저해된 식물체.
- 제5항에 있어서, 상기 인공간섭 펩티드는 이합체 형성 도메인만을 포함하여 전사인자의 활성을 저해하는 전사인자의 절단형, 이합체 형성 도메인과 DNA 결합 도메인을 포함하나 전사조절 도메인을 포함하지 않아 전사인자의 활성을 저해하는 전사인자의 절단형 또는 이합체 형성 도메인과 전사조절 도메인을 포함하나 DNA 결합 도메인을 포함하지 않아 전사인자의 활성을 저해하는 전사인자의 절단형인 것을 특징으로 하는 전사인자의 활성이 저해된 식물체.
- 삭제
- 삭제
- 삭제
- 제1항에 있어서, 상기 전사인자는 SOC1 (SUPPRESSOR OF OVEREXPRESSOR OF CONSTANS 1), BdSOC1 (Brachypodium distachyon SUPPRESSOR OF OVEREXPRESSOR OF CONSTANS 1), AG (AGAMOUS) 또는 LHY (LATE ELONGATED HYPOCOTYL)이며, 각각 서열번호 5, 서열번호 6, 서열번호 7 또는 서열번호 8의 염기서열에 의해 코딩되는 것을 특징으로 하는 전사인자의 활성이 저해된 식물체.
- 삭제
- 삭제
- 삭제
- 서열번호 1 내지 4 중에서 선택된 어느 하나의 아미노산 서열로 이루어진 식물체 전사인자의 이합체 형성 도메인 (dimerization domain)을 필수적으로 포함하면서, 상기 전사인자의 절단형 (truncated form)인 것을 특징으로 하는 인공간섭 펩티드 (a-siPEP; artificial small interfering peptide)를 코딩하는 유전자를 포함하는 재조합 식물 벡터를 식물세포에 형질전환시켜 인공간섭 펩티드 코딩 유전자를 과발현하는 단계를 포함하는 식물체의 전사인자 활성을 저해하는 방법.
- 서열번호 1 내지 4 중에서 선택된 어느 하나의 아미노산 서열로 이루어진 식물체 전사인자의 이합체 형성 도메인 (dimerization domain)을 필수적으로 포함하면서, 상기 전사인자의 절단형 (truncated form)인 것을 특징으로 하는 인공간섭 펩티드 (a-siPEP; artificial small interfering peptide)를 코딩하는 유전자를 포함하는 재조합 식물 벡터를 식물세포에 형질전환시켜 인공간섭 펩티드 코딩 유전자를 과발현하는 단계를 포함하는 전사인자의 활성이 저해된 형질전환 식물체의 제조 방법.
- 제15항의 방법에 의해 제조된 전사인자의 활성이 저해된 형질전환 식물체.
- 제16항에 있어서, 상기 식물체는 쌍자엽 또는 단자엽 식물인 것을 특징으로 하는 형질전환 식물체.
- 제16항에 있어서, 상기 식물체는 애기장대 또는 숲개밀 (Brachypodium distachyon)인 것을 특징으로 하는 형질전환 식물체.
- 제16항에 따른 식물체의 종자.
- 서열번호 1 내지 4 중에서 선택된 어느 하나의 아미노산 서열로 이루어진 식물체 전사인자의 이합체 형성 도메인 (dimerization domain)을 필수적으로 포함하면서, 상기 전사인자의 절단형 (truncated form)인 것을 특징으로 하는 인공간섭 펩티드 (a-siPEP; artificial small interfering peptide)를 코딩하는 유전자를 포함하는 재조합 식물 벡터를 함유하는 식물체의 전사인자 활성 저해용 조성물.
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