the biochemical properties of three stimulatory guanine nucleotide-binding protein ( g-protein ) alpha subunits , the large and small forms of gs , gs-l ( 52 kda ) and gs-s ( 45 kda ) , and the olfactory specific g-protein , golf , have been compared .
C0086903
stimulatory guanine nucleotide-binding
C0887847
g-protein