tokens: Here we show that a novel isoform of Rapl GTPase activating protein , called rap1GAPII , binds specifically to the alpha-subunits of the G ( i ) family of heterotrimeric G proteins .
folded_tokens: here we show that a novel isoform of rapl gtpase activate protein , call rap1gapius , bind specifically to the alpha-subunit of the g ( i ) family of heterotrimeric g protein .