G蛋白的下列哪一种功能使其进行自我抑制？

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30526' and id < 2465096 and id<>'2465096' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30526' and id > 2465096 and id<>'2465096' order by id asc limit 5