Castellanos E, Aranaz A, Romero B, de Juan L, Alvarez J, Bezos J, Rodríguez S, Stevenson K, Mateos A, Domínguez L
Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Avda. Puerta de Hierro s/n, 28040 Madrid, Spain.
J Clin Microbiol. 2007 Oct;45(10):3439-42. doi: 10.1128/JCM.01411-07. Epub 2007 Aug 1.
The analysis of the gyrA and gyrB genes of a panel of Mycobacterium avium subsp. paratuberculosis isolates from types I, II, and III detected type-specific single nucleotide polymorphisms. Based on these results, we developed a PCR and restriction enzyme analysis to discriminate type I and III isolates. The application of this technique would be the unique strategy to characterize these strains when there is not enough bacterial growth to perform pulsed-field gel electrophoresis and IS900 restriction fragment length polymorphism.
对一组来自I型、II型和III型副结核分枝杆菌鸟分枝杆菌亚种分离株的gyrA和gyrB基因进行分析,检测到了型特异性单核苷酸多态性。基于这些结果,我们开发了一种PCR和限制性酶切分析方法来区分I型和III型分离株。当细菌生长量不足以进行脉冲场凝胶电泳和IS900限制性片段长度多态性分析时,应用该技术将是鉴定这些菌株的唯一策略。