Figure 2.

(A Left) Graph of the H_i of β-endorphin, the definitional peptide ligand for the delta opioid receptor. (Right) Plot of its maximum entropy, complex poles power spectrum indicating an h(ω) = 4.44 wavelength in amino acid residues. (B Upper Left) Graph of the wavelet transform, W^R = 4.4, of the Ψ^R (Lower Left) of the delta opioid receptor. A plot of the h(ω) = 4.43 of its extracellular, N-terminal H_i (Upper Right) is identifiable in the isopotential plot of the W^R (Upper Left) and the global h(ω) = 4.44 of its Ψ^R is portrayed in its graph (Lower Right).