KR100760525B1 - 병원성 미생물의 무증폭 다중 정량 검출킷트 및 검출방법 - Google Patents
병원성 미생물의 무증폭 다중 정량 검출킷트 및 검출방법 Download PDFInfo
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Abstract
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Claims (23)
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- 1) 혼성화 모듈(hybridization module)에 고정된 낚시탐침(fishing probe)을 활성화시키는 단계;2) 활성화된 혼성화 모듈에 차단용액을 포함하는 증류수 및 혼성화 완충용액(hybridization buffer)을 첨가하여 예비 혼성화 반응시키는 단계;3) 예비 혼성화 반응이 완료된 혼성화 모듈에 분석시료, 태그(tag)가 표지된 보고탐침(reporter probe) 및 혼성화 완충용액을 넣고 혼성화 반응을 유도하여 낚시탐침-분석시료-보고탐침의 3중 복합체를 형성하는 단계;4) 효소면역항체분석법(ELISA)을 이용하여 상기 3중 복합체의 양을 측정하는 단계; 및5) 혼성화 모듈을 세척하여 재생하는 단계를 포함하고,상기 낚시탐침이 검출하고자 하는 분석시료인 병원성 미생물의 특이 유전자 부위를 인식하도록 고안된 염기서열을 갖는 단일가닥 폴리뉴클레오티드이고, 상기 보고탐침이 상기 병원성 미생물의 특이 유전자들 중에서 상기 낚시탐침의 인식부위와 중복되지 않는 다른 특이 유전자 부위를 인식하도록 고안된 염기서열을 갖는 이중가닥 폴리뉴클레오티드인 것을 특징으로 하는,병원성 미생물을 정량적으로 검출하는 방법.
- 제 11항에 있어서,단계 1)에서 75 내지 125 mM Tris-HCl(pH 7.5), 125 내지 175 mM NaCl 및 1 내지 2% 트윈 20을 포함하는 중화용액으로 혼성화 모듈을 세척하여 낚시탐침을 활성화시키는 것을 특징으로 하는 방법.
- 삭제
- 제 11항에 있어서,단계 2)의 예비 혼성화 반응이 혼성화 모듈에 0.2 내지 0.6% 차단용액을 포함하는 증류수 및 동일한 부피의 혼성화 완충용액을 첨가하여 50 내지 55℃에서 0.5 내지 2시간 동안 수행되는 것을 특징으로 하는 방법.
- 제 14항에 있어서,상기 혼성화 완충용액이 10× SSC(1.5 M NaCl, 0.15 M 소듐 시트레이트, pH 7.0), 0.2% 사르코신(sarcosine), 0.04% SDS(sodium dodecyl sulfate), 및 0.2% 차단용액(0.2% 탈지유단백질(w/v) 50 mM, Tris-HCl 150 mM, pH 7.4)를 포함하는 것을 특징으로 하는 방법.
- 제 11항에 있어서,단계 2)에서 예비 혼성화 반응이 완료된 모듈을 50 내지 55℃에서 세척하는 것을 특징으로 하는 방법.
- 제 16항에 있어서,세척이 세척용액으로서 0.5× SSC(75 mM NaCl, 7.5 mM 소듐 시트레이트, pH 7.0) 용액을 이용하여 1회 수행되는 것을 특징으로 하는 방법.
- 제 11항에 있어서,단계 3)에서 혼성화 반응이 분석시료와 태그가 표지된 보고탐침을 혼합하여 95 내지 100℃에서 10 내지 20분간 변성시키는 단계; 상기 변성액을 동량의 혼성화 완충용액(hybridization buffer)과 함께 낚시탐침이 고정된 혼성화 모듈에 첨가하는 단계; 및 상기 혼성화 모듈을 50 내지 55℃에서 1 내지 3시간 동안 교반하는 단계에 의해 이루어지는 것을 특징으로 하는 방법.
- 제 11항에 있어서,분석시료가 병원성 미생물의 감염여부를 확인하고자 하는 생물 시료를 잘게 자르거 나 균질화(chopping or homogenizing)하는 단계; 여기에 단백질 분해효소 K(proteinase K)를 37 내지 50℃에서 1 내지 3시간 동안 처리하는 단계; 및 얻어진 반응액을 원심분리하여 상등액(supernatant)을 얻는 단계에 의해 제조되는 것을 특징으로 하는 방법.
- 제 11항에 있어서,단계 3)에서 혼성화 반응이 완료된 모듈을 50 내지 55℃에서 세척하여 미반응물들을 제거하는 것을 특징으로 하는 방법.
- 제 20항에 있어서,혼성화 모듈을 2× SSC(300 mM NaCl, 30 mM 소듐 시트레이트, pH 7.0) 용액으로 2분간 3회 세척하고, 1× SSC(150 mM NaCl, 15 mM 소듐 시트레이트, pH 7.0) 용액으로 15분간 1회 세척하고, 0.5× SSC(75 mM NaCl, 7.5 mM 소듐 시트레이트, pH 7.0) 용액으로 2분간 3회 세척하는 것을 특징으로 하는 방법.
- 제 11항에 있어서,단계 4)에서 ELISA 분석이 혼성화 반응이 끝난 모듈에 보고탐침의 태그를 인식하는 효소연결 항-태그 항체를 첨가하여 1 내지 3시간 동안 20 내지 25℃에서 반응시키면서 항원-항체 반응을 유도하는 단계; 결합되지 않은 항체를 중화용액으로 세척하여 제거하는 단계; 상기 항체에 연결된 효소의 기질을 첨가하여 발색반응을 유도하는 단계; 발색정도를 측정하여 효소활성을 확인하는 단계; 및 각 분석시료에서 측정된 효소활성을 표준시료(standard sample)로부터 얻은 표준곡선(standard curve)과 비교하여 병원성 미생물의 양을 결정하는 단계에 의해 이루어지는 것을 특징으로 하는 방법.
- 제 11항에 있어서,단계 5)에서 혼성화 모듈에 1.5배 부피의 0.2 N NaOH 변성용액(트윈 20 함유)을 첨가하여 50 내지 60℃에서 3분간 3회, 15분간 1회 세척하고, 0.1% CTAB(cetyltrimethylammonium bromide) 용액으로 동일한 온도에서 1시간, 0.1% 사르코신(0.1% SDS 및 0.1% 트윈 20 함유) 용액으로 1시간 동안 세척하여 낚시탐침에 혼성화된 분석시료 및 보고탐침을 제거함으로써 혼성화 모듈을 재생하는 것을 특징으로 하는 방법.
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US20190153552A1 (en) * | 2016-05-11 | 2019-05-23 | Mayo Foundation For Medical Education And Research | Hpv screening platform |
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US20090325161A1 (en) | 2009-12-31 |
WO2007119987A3 (en) | 2007-12-13 |
KR20060108531A (ko) | 2006-10-18 |
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