KR102248851B1 - 네오디뮴에 특이적으로 결합하는 dna 앱타머 및 이의 용도 - Google Patents
네오디뮴에 특이적으로 결합하는 dna 앱타머 및 이의 용도 Download PDFInfo
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- KR102248851B1 KR102248851B1 KR1020190162394A KR20190162394A KR102248851B1 KR 102248851 B1 KR102248851 B1 KR 102248851B1 KR 1020190162394 A KR1020190162394 A KR 1020190162394A KR 20190162394 A KR20190162394 A KR 20190162394A KR 102248851 B1 KR102248851 B1 KR 102248851B1
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- Prior art keywords
- neodymium
- dna
- dna aptamer
- aptamer
- present
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Abstract
Description
도 2는 본 발명의 일 실시예에서 수행된 SELEX의 과정을 나타낸 모식도이다.
도 3은 본 발명의 일 실시예에서 SELEX 수행 횟수에 따라 수득된 RNA 앱타머와 네오디뮴의 결합력을 나노드랍 방법으로 확인한 결과 그래프이다.
도 4는 본 발명의 일 실시예에서 SELEX 수행 횟수에 따라 수득된 RNA 앱타머와 네오디뮴의 결합력을 실시간 PCR 방법으로 확인한 결과 그래프이다.
도 5는 본 발명의 일 실시예에서 네오디뮴과 높은 결합력을 보이는 것으로 확인된 5개 DNA 앱타머의 2차 구조를 확인한 결과 도면이다.
도 6은 본 발명의 일 실시예에서 네오디뮴과 높은 결합력을 보이는 것으로 확인된 5개 DNA 앱타머의 네오디뮴에 대한 결합 특이성을 확인한 결과 그래프이다.
도 7은 본 발명의 일 실시예에서 네오디뮴과 높은 결합력을 보이는 것으로 확인된 5개 DNA 앱타머의 네오디뮴과의 결합을 주사전자현미경으로 관찰한 결과 사진이다(A: DNA 앱타머가 결합되지 않은 스트렙트아비딘 비드, B: DNA 앱타머가 결합된 스트렙트아비딘 비드, C: DNA 앱타머가 결합되지 않은 스트렙트아비딘 비드+네오디뮴, D: Nd-3 DNA 앱타머가 결합된 스트렙트아비딘 비드+네오디뮴, E: Nd-6 DNA 앱타머가 결합된 스트렙트아비딘 비드+네오디뮴, F: Nd-7 DNA 앱타머가 결합된 스트렙트아비딘 비드+네오디뮴, G: Nd-9 DNA 앱타머가 결합된 스트렙트아비딘 비드+네오디뮴, H: Nd-10 DNA 앱타머가 결합된 스트렙트아비딘 비드+네오디뮴).
초기 변성 단계 | 95℃, 5분 | 1회 |
변성 단계 | 95℃, 30초 | 4회 |
어닐링(annealing) 단계 | 55℃, 30초 | |
연신(elongation) 단계 | 72℃, 30초 | |
후기 연신 단계 | 72℃, 5분 | 1회 |
초기 변성 단계 | 95℃, 5분 | 1회 |
변성 단계 | 95℃, 30초 | 15회 |
어닐링 단계 | 55℃, 30초 | |
연신 단계 | 72℃, 30초 | |
후기 연신 단계 | 72℃, 5분 | 1회 |
클론 | 서열(5'→3') | 서열번호 |
Nd-1 | ATACCAGCTTATTCAATTACACAGATCGTTTCGTGACGGTTTTCAGAACTACAAGTCTAGATAGTAAGTGCAATCT | 서열번호 1 |
Nd-2 | ATACCAGCTTATTCAATTGTTCGTGCGTGAGGATTTAAATACGATCAAACATGGCTTGAGATAGTAAGTGCAATCT | 서열번호 2 |
Nd-3 | ATACCAGCTTATTCAATTCCAGTGTTAGTAACAATACGTTGGTACCCTTGCTCTGTTGAGATAGTAAGTGCAATCT | 서열번호 3 |
Nd-4 | ATACCAGCTTATTCAATTTGGGCTTAACTAATGTGTTCGAAAGCTCGCTGGAGAGACAAGATAGTAAGTGCAATCT | 서열번호 4 |
Nd-5 | ATACCAGCTTATTCAATTCGCTTCCTTTAACGTGGCCTTGTATTGCGAGTCTCGGGCAAGATAGTAAGTGCAATCT | 서열번호 5 |
Nd-6 | ATACCAGCTTATTCAATTCGCTAGGAGCAATGTCTAGATACGCAGATCGCTGCGGGTGAGATAGTAAGTGCAATCT | 서열번호 6 |
Nd-7 | ATACCAGCTTATTCAATTCCATAAGTCTATGCCCTTAAAACATATAATACGGACTTCGAGATAGTAAGTGCAATCT | 서열번호 7 |
Nd-8 | ATACCAGCTTATTCAATTACAGGAGGCTAGCCTTTAAGCTTCGGAGCCGGTATTGTACAGATAGTAAGTGCAATCT | 서열번호 8 |
Nd-9 | ATACCAGCTTATTCAATTCGTCGTGGTTTTAGGGTAGGGGAAGGACTTTCCTAGTGATAGATAGTAAGTGCAATCT | 서열번호 9 |
Nd-10 | ATACCAGCTTATTCAATTTGCCTCATGTAATGGTAATTCAAGAGGTCAAGTGCTGACGAGATAGTAAGTGCAATCT | 서열번호 10 |
Nd-11 | ATACCAGCTTATTCAATTGAGGTCATTGTTACTCGATGGCAAACAGCCTATCTCCATAAGATAGTAAGTGCAATCT | 서열번호 11 |
Nd-12 | ATACCAGCTTATTCAATTATGCCCACCATTAAAAGTAGCGTGGACAAGGGATTGGGATAGATAGTAAGTGCAATCT | 서열번호 12 |
Nd-13 | ATACCAGCTTATTCAATTTCCTAGGTAGCAACGCAACGCCGCATTTACCCGCATTCACAGATAGTAAGTGCAATCT | 서열번호 13 |
Nd-14 | ATACCAGCTTATTCAATTGCATGGGTGCTCAAATTAATTCGGGTACCGTGGATCGTGGAGATAGTAAGTGCAATCT | 서열번호 14 |
Nd-15 | ATACCAGCTTATTCAATTCCTCAGATGCGTCAGTTGGTGACTCCATTAGCTGATCCTGAGATAGTAAGTGCAATCT | 서열번호 15 |
Nd-16 | ATACCAGCTTATTCAATTCCTAATATGAATGGTGCTCGCGTAACCCCTTGTGGTACGAAGATAGTAAGTGCAATCT | 서열번호 16 |
초기 변성 단계 | 94℃, 5분 | 1회 |
변성 단계 | 94℃, 20초 | 40회 |
어닐링 단계 | 52℃, 20초 | |
연신 단계 | 72℃, 20초 | |
후기 연신 단계 | 72℃, 5분 | 1회 |
클론 | K D 값(M) |
Nd-3 | 2.012×10-8 |
Nd-6 | 5.953×10-10 |
Nd-7 | 2.406×10-8 |
Nd-9 | 1.546×10-8 |
Nd-10 | 8.381×10-9 |
중금속 | K D 값(M) |
네오디뮴(Nd) | 5.953×10-10 |
비소(As) | 1.078×10-5 |
카드뮴(Cd) | 1.237×10-5 |
철(Fe) | 1.237×10-5 |
리튬(Li) | 4.265×10-7 |
마그네슘(Mg) | 2.250×10-6 |
나트륨(Na) | 1.803×10-5 |
니켈(Ni) | 5.505×10-5 |
구리(Cu) | 3.827×10-5 |
클론 | 초기 네오디뮴 농도 (㎎/ℓ) |
네오디뮴의 제거량 (㎎/ℓ) |
결합 효율 (%) |
대조군 | 4.98 | 0.12 | 2.4 |
Nd-3 | 4.98 | 2.09 | 42.0 |
Nd-6 | 4.98 | 3.5 | 70.3 |
Nd-7 | 4.98 | 3.3 | 66.3 |
Nd-9 | 4.98 | 3.15 | 66.3 |
Nd-10 | 4.98 | 3.27 | 65.7 |
Claims (8)
- 서열번호 3, 6, 7, 9 또는 10으로 기재된 염기서열로 구성되는 네오디뮴에 특이적으로 결합하는 DNA 앱타머.
- 제1항의 DNA 앱타머를 유효성분으로 함유하는 네오디뮴 검출, 제거 또는 회수용 조성물.
- 제1항의 DNA 앱타머를 유효성분으로 함유하는 네오디뮴 검출, 제거 또는 회수용 키트.
- 제1항의 DNA 앱타머가 고정된 기판을 갖는 네오디뮴 검출용 마이크로어레이.
- 제1항의 DNA 앱타머가 고정된 기판을 갖는 네오디뮴 검출용 센서.
- 제2항의 조성물을 시료와 반응시키는 단계를 포함하는 네오디뮴의 검출방법.
- 제2항의 조성물을 시료와 반응시켜 형성된 DNA 앱타머와 네오디뮴의 복합체를 제거하는 단계를 포함하는 네오디뮴의 제거방법.
- 제2항의 조성물을 시료와 반응시켜 형성된 DNA 앱타머와 네오디뮴의 복합체를 회수하는 단계를 포함하는 네오디뮴의 회수방법.
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