Fig. 3.

Alignments of F-ORF protein sequences. Global alignments and alignments for each subfamily are shown. a all F-ORF sequences, b F-ORFs from the subfamily Unioninae, c F-ORFs from the subfamily Gonideinae, d F-ORFs from the subfamily Ambleminae (e) F-ORFs from the subfamily Margaritiferidae. Colour coding is applied to amino acid groups conserved in ≥70 % of sequences. Grey, aliphatic amino acids; orange, aromatic amino acids; yellow, sulfur amino acids; green, amino acids bearing a hydroxyl group; red, basic amino acids; blue, acidic amino acids; brown, amino acids with an amide group; pink, cyclic amino acids