Fig. 1: Classification of β-trefoil lectins according to the TrefLec database.

a Selected examples of β-trefoil lectins from different classes. The binding peptide is represented by a rainbow-colored ribbon, the bound sugar by sticks, and the conserved hydrophobic core-forming amino acids by spheres. b Sunburst statistics for predicted β-trefoil lectins in different classes, in selected domains of life. c Classification of predicted β-trefoil lectins and distribution of sequences in the TrefLec database. d Prediction of β-trefoil lectins with an aerolysin domain based on the corresponding CATH domain (CATH entry 2.170.15.10).