Multiple sequence alignment of the N-terminal domain of Ftn6 orthologs. BoxShade representation of the multiple alignment of the N-terminal domain of Ftn6 orthologs built with ClustalW2. Organisms, accession numbers and characteristics of the Ftn6 sequences shown in the alignment are given in the additional file 1. The starting residues are reported at the front of the corresponding sequence. Amino acids identical or similar in 70% of the sequences are shaded by black or grey background, respectively. The consensus in 100% of the sequences is indicated below the alignment. Stars point out the conserved residues exposed onto the surface of the FND structure (see text).