we propose therefore that the receptors for the mitogenic neuropeptides bombesin , vasopressin , and bradykinin can interact with two classes of antagonist , one recognizing the ligand binding site ( e.g. , [ leu13-psi ( ch2nh ) leu14 ] bombesin ) and the other recognizing a common domain shared by the three receptors ( e.g. , [ darg1 , dphe5 , dtrp7,9 , leu11 ] substance p ) .
C0027895
neuropeptides
C0006100
bradykinin