RNA interference is a post transcriptional gene silencing mechanism conserved in evolotion from warm to human which has been used as a powerful tool for gene fucntional research.With its great development,many research groups have applied RNAi into gene function investigation, signal transduction researh and exploration of the initial mechanisms of diseases.Although a few proteins involved in RNAi pathway has been identified,the detail of regulation mechanism of RNAi is still in the dark.Data from m...