Volume 7, Number 5—October 2001
Research
Molecular Identification of Streptomycin Monoresistant Mycobacterium tuberculosis Related to Multidrug-Resistant W Strain
Figure 3

Figure 3. . Southern blot hybridization with the DRab probe. The DRab probe was used to hybridize against the PvuII-digested chromosomal DNA previously used for IS6110 fingerprinting. Members of the W14 group had a single hybridizing band of a slight lower molecular weight than that of other W variants. In contrast, strain CDC1551, which is known to have an insertion within the direct-repeat locus, yielded two hybridizing bands, including one of higher molecular weight. Both hybridizing bands in strain CDC1551 can be superimposed with the IS6110 patterns of this isolate.
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