cDNA and derived amino acid sequences of the S. schenckii sssod gene. Figure 1A shows the sequencing strategy used for the sssod gene. The size and location in the gene of the various fragments obtained from PCR and RACE are shown. Figure 1B shows the cDNA and derived amino acid sequence of the sssod gene. Non-coding regions are given in lower case letters, coding regions and amino acids are given in upper case letters. The conserved residues are shadowed in yellow. The original sequence isolated using the yeast two-hybrid assay is shadowed in gray.