G蛋白在细胞信号传导上具有重要作用，G蛋白直接激活的酶是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29023' and id < 2361947 and id<>'2361947' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29023' and id > 2361947 and id<>'2361947' order by id asc limit 5