FIG. 8.
Analysis of H. ducreyi LOS by SDS-PAGE. Crude LOS was prepared as described in the text and subjected to SDS-PAGE and silver staining. None, no plasmid present; A, pUNCH 1260 (contains the entire dsrA ORF from strain 35000 and its putative native promoter as illustrated in Fig. 2); B, pLSKS (vector without insert).