highly significantP -value = 0
We identified and quantified 775 proteins in all pull-down samples ( n = 3–4 for each miRNA; Supplementary Table 6 ) and a gene ontology analysis (molecular function) revealed a highly significant enrichment of poly(A) RNA-binding and RNA-binding proteins (corrected P -value = 0 and 1.57 × 10 −115 , respectively; Supplementary Table 7 ).