Members of the Argonaute family function in RNA interference by silencing target mRNAs. A new study in Cell uncovers an additional role for Argonaute proteins in the post-transcriptional ...

Using biochemical mutagenesis, in vivo knockouts, and enzymatic assays, they had all but pegged Argonaute2. But, says Hannon, "We were stuck ? We could go right up to the edge of saying it was ...