Fig. 2.

Binding of nonanal to Amyelois transitella AtraGOBPs. This aldehyde showed high affinity to AtraGOBP1 (a) and AtraGOBP2 (b) at high pH, but no affinity at low pH. No traces of the ligand were detected in the buffer at pH 7. Histogram bars represent mean+SEM (N = 5)