on the other hand , gabab receptor binding , which was noncompetitively inhibited by guanine nucleotides such as gtp , guanosine 5'- ( 3-o-thio ) triphosphate ( gtp gamma s ) , guanosine 5'- ( beta , gamma-imido ) triphosphate [ gpp ( nh ) p ] , and gdp , was competitively inhibited by ( - ) -baclofen .
C0018353
gtp
C0079469
gtp gamma s