A S. pneumonia e TIGR4 genes expressed in different TIGR protein families (TIGRFAMs). The gene expression is shown as a percentage of the total number of genes present in TIGR4 genome in a particular TIGRFAM category. B. Genome browser visualization of S10, a 15 gene operon (SP0208 - SP0222). Track two shows the DNA sequence translation in six frames and track one shows the genes. The color of the expressed genes is in accordance with the six frame translation. S10 operonic genes SP0208 - SP0222 are present in the forward strand. The "tiling array expression" track clearly demonstrates that all genes predicted in S10 operon are expressed at similar level and this expression is higher than the intensity threshold for expression (11.0).