currents elicited by the n-methyl-d-aspartate receptor agonists nmda , l-aspartate ( asp ) or l-homocysteate ( l-hca ) in nominally mg-free saline were completely blocked by 100 microm 2-amino-5-phosphonovalerate ( ap-5 ) but responses to non-nmda receptor agonists kainate ( ka ) , quisqualate ( qa ) , or alpha-amino-3-hydroxy-5-methyl-isoxazole-4-propionic acid ( ampa ) in normal mg2+ saline were unaffected .
C0022266
isoxazole
C0051318
ampa