Schematic representation of Tn 1806 of S. pneumoniae AP200, in comparison with ICE10750 RD-2 of S. pyogenes. The erm(TR) gene is indicated by a red arrow. Blue arrows indicate shared ORFs between the 2 elements. Yellow arrows indicate the ORFs uniquely present in Tn1806 while green arrows indicate those uniquely present in ICE10750 RD-2. Shaded areas between the elements indicate a nucleotide identity greater than 90%. The proteins of Tn1806 indicated in the figure are described in the text.