summation of the responses evoked by gln ( 10 ( -3 ) m ) and glycine ( 10 ( -3 ) m ) was observed when these two amino acids were applied together , while no significant increase of the responses was present when gln was applied together with l-glutamate ( 10 ( -3 ) m ) or kainate ( 10 ( -3 ) m ) .
C0002520
amino acids
C0017797
gln