楊鵬飛1,2,燕清麗1,2,張麗萍1,徐煥洲1,王玉春1,甄維1,胡孔新1*
1.中國檢驗檢疫科學研究院衛生檢驗檢疫研究所,北京 100123;2.淮安市疾病預防控制中心
摘要:目的 建立一種適應國境口岸地區特定鼠種中普馬拉病毒實時螢光定量RT-PCR檢測方法。方法 利用BeaconDesigner7.0軟體設計引物和探針,以人工合成普馬拉病毒S基因的片段作為模板,進行實時螢光定量RT-PCR檢測,並驗證該方法的靈敏度及特異性。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y = -3.122 x + 38.605,R2 = 0.995,PCR擴增效率為109.1%,其最低檢出限為31.6 copies/μl。結論建立的實時螢光定量RT-PCR方法特異性好、靈敏度高,適合於普馬拉病毒的快速檢測。
關鍵詞:普馬拉病毒;定量;實時螢光RT-PCR
中圖分類號:R373 文獻標識碼:B
Establishment of quantitative real-time RT-PCR of Puumalavirus
YANG Peng-fei*, YAN Qing-li, ZHANG Li-ping, XU Huan-zhou, WANGYu-chun, ZHENG Wei, HU Kong-xin
Chinese Academy of Inspection and Quarantine, Beijing100123,China
Abstract: Objective To establish aquantitative real-time fluorescence RT-PCR (qRT-PCR) method fordetecting Puumala virus(PUUV) from some rodents at frontierports. Methods The twin primers andthe TaqMan probe were designed and synthesized based on the S genesegment of PUUV, and the real-time RT-PCR was developed for testingthe sensitivity and the specialty. Results The Ct value of templates had a linear relationship with the logstarting quantity. Sensitivity assay showed that the detectionlimit of the assay was 31.6 copies/μl and the standard curve y =-3.122 x + 38.605 had a good reproducibility. Conclusion Quantitative real-time fluorescence for PUUVdetection was established and characterized by rapidity andsensitivity.
Key words: Puumala virus; Quantitative; Real-timeRT-PCR
《中國國境衛生檢疫雜誌》2013年8月刊