Bauer J, Andersen A B
Department of Mycobacteriology, Statens Serum Institut, 2300 Copenhagen S, Denmark.
J Clin Microbiol. 1999 Feb;37(2):442-4. doi: 10.1128/JCM.37.2.442-444.1999.
Recently a novel insertion element, IS1245, has been described and suggested for use as a probe in restriction fragment length polymorphism studies of Mycobacterium avium strains. An important issue in this context is the stability of the insertion element. We analyzed single colonies of M. avium cultures and found frequent small one- to two-band changes. However, following repeated in vitro passages over 1 year, similar one- to two-band changes were observed in the IS1245 patterns of only six M. avium strains investigated.
最近,一种新型插入元件IS1245已被描述,并建议用作鸟分枝杆菌菌株限制性片段长度多态性研究的探针。在这种情况下,一个重要问题是插入元件的稳定性。我们分析了鸟分枝杆菌培养物的单菌落,发现频繁出现小的一到两条带的变化。然而,在1年多的反复体外传代后,在所研究的仅6株鸟分枝杆菌菌株的IS1245图谱中观察到类似的一到两条带的变化。