Fig. 1

Promals3D alignment of AA9 domains. An alignment of 47 representative sequences to indicate the different AA9 sequences retrieved. The signal peptide (SP) is shown above the sequences, along with insert regions I and II. The PDB IDs of structures used as Promals3D input are shown at the bottom along with a representation of secondary structure along their sequences. Alpha helices are shown in red and beta sheets are shown in green