Figure 4.

The N-terminal region of the multiple sequence alignment of several fungal members of the Cit1/2p orthologous group. Amino acids around the signal-peptide cleavage-sites, as predicted by Mitoprot are marked with a rectangle (white arrow indicates the position in the alignment) they correspond to YS (YA in C. tropicalis) that is missing in Cit2p. No mitochondrial localization nor a cleavage-site is predicted for Cit2p consistent with its peroxisomal location.