Although the poly(A) tail and poly(A) binding protein (PABP) have emerged as important effectors of miRNA function, how they contribute to miRNA-mediated gene silencing has been unclear. A combination of biochemical and functional studies now demonstrate that PABP promotes the association of miRISC with its target mRNAs.
- Francesca Moretti
- Constanze Kaiser
- Matthias W Hentze