QKI5-regulated miRNAs

ABSTRACT: microRNAs (miRNAs) accomplish a remarkable variety of biological functions. Their expression is tightly controlled, and the final production of a miRNA is dependent on the cooperation of multiple mechanisms and their net effect. Here we show that miR-124-1 is transcriptionally activated during erythroid differentiation by GATA-1, however its post-transcriptional processing is attenuated. We found that QKI5 binds to a distal QKI response element (QRE) embedded in the primary transcript of miR-124-1 (pri-124-1) and modulates Microprocessor function by direct association with DGCR8. Strikingly, Microprocessor recruitment to pri-124-1 is disrupted upon RNAi-mediated depletion of QKI5, consistent with the decrease in mature miR-124. Moreover, addition of QKI5 increases the conversion efficiency

ORGANISM(S): Homo sapiens

SUBMITTER: Jia Yu 

PROVIDER: E-GEOD-57363 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress