Figure 1

The superimposed structures of the BmorPBP1^A (red), BmorPBP1^B (green) and DhelOBP21 (blue). Remarkable differences were located in the N- and C- termini and the loop between helix α₃ and α₄ (residues 60 to 68, red, green and blue, respectively). The ligand BOM (Bombykol, in yellow) belonged to the BmorPBP1^B.