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首页> 外文期刊>Journal of Clinical Microbiology >Direct identification and typing of Mycobacterium tuberculosis by PCR.
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Direct identification and typing of Mycobacterium tuberculosis by PCR.

机译:通过PCR直接鉴定和鉴定结核分枝杆菌。

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摘要

We have developed a rapid PCR assay that types strains of Mycobacterium tuberculosis by generating distinct DNA fingerprints directly from primary cultures. This assay allows strain identification analogous to that achieved by the standard restriction fragment length polymorphism method, and fingerprints are obtained in less than 8 h. This assay does not require subculturing, DNA purification, restriction digestion, Southern blotting, or nucleic acid hybridization. Rapid and precise identification of M. tuberculosis strains permits immediate molecular epidemiologic studies. The assay can be converted to a computer-automated system by employing fluorescently labeled PCR primers and the Perkin-Elmer DNA sequencer so that unknown-specimen fingerprints are identified by computer comparison to a database of M. tuberculosis strain fingerprints.
机译:我们已经开发了一种快速PCR检测方法,可通过直接从原代培养物中产生独特的DNA指纹来对结核分枝杆菌菌株进行分型。该测定法允许菌株鉴定类似于通过标准限制性片段长度多态性方法获得的菌株鉴定,并且在少于8小时内获得指纹。该测定不需要传代,DNA纯化,限制性酶切,Southern印迹或核酸杂交。快速准确地鉴定结核分枝杆菌菌株可以立即进行分子流行病学研究。通过使用荧光标记的PCR引物和Perkin-Elmer DNA测序仪,可以将该测定法转换为计算机自动化系统,以便通过与结核分枝杆菌菌株指纹数据库进行计算机比较来鉴定未知样品的指纹。

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