| Mi 2 beta associates with BRG 1 and RET finger protein at the distinct regions with transcriptional activating and repressing abilities . ^^^ Here we show that the amino terminal and carboxyl terminal regions of Mi 2 beta have distinct transcriptional activities and bind to BRG 1 , a component of the SWI / SNF complex , and the RET finger protein ( RFP ) , respectively . ^^^ Furthermore , the functional importance of the association of Mi 2 beta and RFP was confirmed by using Rfp / fibroblasts . ^^^ |