FIGURE 5.

Comparison of the domain arrangement of TraM and its structurally related proteins from G+ and G− putative T4SS. The amino acid sequence contained in the available structures is indicated by a dotted line below the individual representations. Because the structure of Orf13 from Tn916 is not available, the two potential domains are assigned according to secondary structure predictions with PsiPred. Transmembrane helices have been predicted for all proteins as described above. The potential coiled-coiled motifs of TraM and TcpC are highlighted as gray boxes (CC).