應用TaqMan-BHQ探針實時螢光RT-PCR法定量檢測馬秋波病毒核酸
燕清麗1 張曉龍1 魏 蓮1 姚李四1,2
(1.中國檢驗檢疫科學研究院,北京 100123;2.軍事醫學科學院,北京100071)
摘要 〔目的〕 建立一種適應口岸馬秋波病毒實時螢光定量RT-PCR快速的檢測方法。〔方法〕用專業軟體設計引物和TaqMan-BHQ探針,以人工合成馬秋波病毒S基因的片段作為模板,進行實時螢光定量RT-PCR研究。〔結果〕模板的Ct值與模板稀釋濃度的對數存在良好的線性關係,標準曲線為Y = -3.281X + 50.975,R2 =0.999361,PCR擴增效率為101.0%,其最低檢出限為28 copies/μl。〔結論〕應用TaqMan-BHQ1探針的實時螢光RT-PCR檢測馬秋波病毒核酸,具有耗時短、靈敏度高等特點。
關鍵詞 TaqMan-BHQ探針;實時螢光RT-PCR;馬秋波病毒;定量檢測;應用
〔中圖分類號〕 R512.8 R184.35 〔文獻標識碼〕 B
Application of TaqMan-BHQ Probe onQuantitative Detection for Machupo Virus by Real-time FluorescenceRT-PCR Yan Qingli1, Zhang Xiaolong1,Wei Lian1,Yao Lisi1,2(1.Chinese Academy of Inspection and Quarantine, Beijing100123,China; 2.The Academy of Military Medical Science, Beijing100071,China.)
[Abstract] Objective To establish a rapid and accurate method of real-time fluorescenceRT-PCR to quantify the S gene of Machupo virus. Methods Thetwin primers and the TaqMan-BHQ probe were designed and synthesizedbased on the S gene segment of Machpo virus. The real-time RT-PCRwas developed for detecting machupo virus. Results The Ct value of templates had a linearrelationship with the log starting quantity. Sensitivity assayshowed that the detection limit of the assay was 28 copies/μl andthe standard curve Y=-3.281X+50.975 had a goodreproducibility. Conclusions Quantitativereal-time fluorescence for Machupo virus detection was establishedand characterized by rapidity and sensitivity.
[Key words] TaqMan-BHQ probe;Real-time fluorescence RT-PCR; Machupo virus; Quantitativedetection; Application