FIGURE 1.

PAP9 secondary structures mapping on a sequence alignment including orthologous proteins from different clades of the green lineage. The PAP9 secondary structure from Arabidopsis thaliana is drawn as followed: the α-helices are displayed as squiggles and β-strands as arrows. The conserved residues are highlighted in red. The residues involved in the metal binding, Zn²⁺ in the crystal structure of A. thaliana PAP9, are indicated with a blue triangle. The cTP and NLS of the A. thaliana PAP9 are highlighted in green and magenta, respectively. The drawing was prepared using ESPript (Robert and Gouët, 2014).