(A) Western blot analysis showing the result of immunoprecipitation with the anti-FRH antibody in the Myc-QDE-2 strain. Cell extract was incubated with/without RNase A before immunoprecipitation. Immunoprecipitation with the FRH pre-immune (PI) serum was used as the negative control.
(B) The Coomassie blue stained SDS-PAGE gel showing purified MBP-QDE-2 from E. coli, and the silver stained SDS-PAGE gel showing purified core exosome complex from S. cerevisiae.
(C) siRNA-initiated RISC assays performed with human Ago2 (hAgo) or MBP-QDE-2.
(D) 5’ [32P] radiolabeled single-stranded pre-milR-1 incubated with the indicated purified proteins. The products were separated by a denaturing gel.