Abstract:1Many Pomona strains of the spirochete Leptospira interrogans express the osmotically-2 inducible sphingomyelinase gene, sph2, at much higher levels than non-Pomona strains. We 3 developed a new green fluorescent protein (GFP) reporter plasmid to examine sph2 gene 4 expression determinants. The vector allows fusion of the test promoter to the ribosome-binding 5 site and coding region of gfp. We fused the sph2 promoters from the serovar Lai strain 56601 6 and from the serovar Pomona strain LC82-25 to gfp to exa… Show more
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