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首页> 外文期刊>The American Journal of Tropical Medicine and Hygiene >Loop-Mediated Isothermal Amplification for Detection of the 5.8S Ribosomal Ribonucleic Acid Internal Transcribed Spacer 2 Gene Found in Trypanosoma brucei gambiense
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Loop-Mediated Isothermal Amplification for Detection of the 5.8S Ribosomal Ribonucleic Acid Internal Transcribed Spacer 2 Gene Found in Trypanosoma brucei gambiense

机译:环介导的等温扩增用于检测5.8S核糖体核糖核核酸内转录的间隔2基因,在锥锥瘤中发现Brucei Gambiense

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摘要

The loop-mediated isothermal amplification (LAMP) assay with its advantages of cost effectiveness, rapidity, and simplicity, has evolved as a sensitive and specific method for the detection of African trypanosomes. Highly sensitive LAMP reactions specific for Trypanosoma brucei rhodesiense or that recognize but do not discriminate between Trypanosoma brucei brucei, T. b. rhodesiense, Trypanosoma brucei gambiense, and Trypanosoma evansi have been developed. A sensitive LAMP assay targeting the T. b. gambiense 5.8S ribosomal RNA internal transcribed spacer 2 (5.8S-ITS2) gene is also available but this assay does not target binding sites that span the CCCA (C3A) (557-560 bps) insertion site that further differentiates T. b. gambiense from T. b. brucei. Here we describe 5.8S-ITS2-targeted LAMP assay that fit these criteria. The LAMP primer sets containing the T. b. gambiense-specific C3A tetranucleotide at the start of the outer forward primer sequences showed high specificity and sensitivity down to at least 0.1 fg T. b. gambiense genomic DNA.
机译:环介导的等温扩增(灯)测定具有成本效益,快速性和简单性的优点,它已经发展为检测非洲锥虫的敏感和具体方法。对锥虫瘤的高度敏感的灯反应,对葡萄球菌瘤Brucei rhodesiense或识别但不区分锥形瘤Brucei Brucei,T.B。已经开发出rhodeSiense,替妥塞诺氏蛋白瘤Brucei Gambiense和雷帕诺血瘤埃瓦西。靶向T.B的敏感灯测定。 Gambiense 5.8S核糖体RNA内部转录的间隔件2(5.8S-ITS2)基因也可用,但该测定不瞄准跨越CCCA(C3A)(557-560bps)插入位点的结合位点,其进一步区分T.b。来自T.B的甘比塞。布鲁迪。在这里,我们描述了适合这些标准的5.8S-ITS2目标灯测定。含有T.b的灯引物组。外部前后引物序列开始时的甘甜特异性C3a四核苷酸显示出高的特异性和敏感性下降至至少0.1fg t.b。 Gambiense基因组DNA。

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