Binds to the same receptor site and is an agent or drug, it becomes another agent but produces an opposite effect. Example drug x binds to receptor site A and potentiates the release of a neurotransmitter, drug X is an agonist at that receptor site.inds to the same receptor site and is an agent or drug, it becomes another agent but produces an opposite effect. Example drug x binds to receptor site A and potentiates the release of a neurotransmitter, drug X is an agonist at that receptor site.
Athens, one of the worldâs oldest cities, has a history of over 3000 years. Details of its founding, though, are not known; the rich mythology of ancient Greeks, though, fills in the blanks. According to the legend, Cecrops was the founder and first King of Athens.
460s BC. 1  469 BC: Philosopher Socrates is born in Attica, Athens, Greece. 2  468 BC: Sophocles, Greek playwright, defeats Aeschylus for the Athenian Prize. 3  468 BC: Antium captured by Roman forces. 4  468 BC: King Zhending of Zhou becomes King of the Zhou Dynasty of China. 5  466 BC: Delian League defeats Persia at the Battle of Eurymedon.