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FIG. 4.

FIG. 4

Northern blot analysis of kan transcripts from B. burgdorferi clones. A blot containing total RNA from B. burgdorferi clones B31-A (WT), AB1, KA1, and KG1 was hybridized with a radioactive kan probe and exposed for 8 h at −80°C (A). After decay, these blots were hybridized with an internal flagellin probe to assure equivalent loading of RNA in each lane (B). An RNA size marker (in kilobases) is indicated to the left of each panel.