You'd Prefer An Argonaute

The RNA-binding protein KSRP promotes the biogenesis of a subset of  microRNAs

Michele Trabucchi, Paola Briata, MariaFlor Garcia-Mayoral, Astrid D. Haase, Witold Filipowicz, Andres Ramos, Roberto Gherzi  &  Michael G. Rosenfeld

Nature 459 (7249): 1010-1014, June 2009.
doi:10.1038/nature08025