FIGURE 1.

Alignment of PapX homologs in the 17-kDa family. PapX homologs of the 17-kDa protein family were aligned using ClustalW (DNA star, Lasergene suite, Megalign, version 8.0.2(13), 412). Perfect consensus is shown above. Positions with imperfect amino acid identity between homologs are shown as dots. Amino acid residues that represented the minority for that position are shaded in black within each homolog's amino acid sequence. The seven family members are ≥93% identical to one another at the amino acid level past residue 17. The N-terminal start site annotation in homologs (boxed) is the result of in silico analysis and has not been experimentally verified.