Table 2. Half-maximal effective concentrations (EC₅₀) of the peptides tested on the expressed H. zea PBAN-R and Drosophila CG8795.

Peptide	H. zea PBAN-R	Drosophila CG8795
PBAN	25 nM	125 nM
Oxidized PBAN	32 nM	—
PGN-7	32 nM	—
PGN-18	29 nM	—
PGN-8	200 nM	—
PGN-24	60 nM	—
Leucopyrokinin	30 nM	52 nM
CAP2b-3	375 nM	550 nM
ETH-1	537 nM	929 nM
Neuromedin U	136 nM	>10 μM
Myomodulin	>10 μM	—
FMRFamide	>10 μM	—
Proctolin	>10 μM	—

EC₅₀ values were determined by using log-probit analysis. —, not tested.