the effects of some conformationally restricted analogues of gamma-aminobutyric acid ( gaba ) on [ 3h ] ( - ) -baclofen binding indicated that gaba interacts with ( - ) -baclofen-sensitive binding sites ( gabab ) in extended rather than folded conformations , and that folded analogues of gaba may interact with a class of binding site ( gabac ? ) insensitive to ( - ) -baclofen and bicuculline .
C0004609
baclofen
C0016904
gaba