Fig. 1

Schematic representation of protein conserved domains in platyhelminth TNFRs. The length of each gray bar is proportional to the sequence length, the number of amino acid residues is indicated on the right side of each bar. The amino acid coordinates of each identified conserved domain are indicated on top (start) and at the bottom (end) of each element. Key: green ellipse, TNFR domain; yellow rectangle, transmembrane region; red pentagon, DD; red circle on top of a red line, cleavage site of the signal peptide