Figure 4.

 Amino acid sequences of Dictyostelium Pia and two yeast homologs. The alignment of three sequences is shown. Numbers on the right indicate amino acid positions. (Dd) Dictyostelium; (Sp) S. pombe; (Sc) S. cerevisiae; (Ho) homology between sequences. Residues identical in all three homologs are indicated by letters. Residues similar in all three homologs are indicated by an asterisk. Residues identical or similar in two sequences only are not marked. Segments identified by TMAP are underlined (see text for details).