Functional Redundancy of DICER Cofactors TARBP2 and PRKRA During Murine Embryogenesis Does Not Involve miRNA Biogenesis.

ABSTRACT: Several in vitro studies have suggested that canonical microRNA (miRNA) biogenesis requires the DICER cofactors TARBP2 and PRKRA for processing of pre-miRNAs to mature miRNAs. To investigate the roles of TARBP2 and PRKRA in miRNA biogenesis in vivo, and to determine possible functional redundancy, we first compared the phenotypes of Tarbp2 and Prkra single and double mutants. In contrast to Dicer ^-/- embryos, which die by embryonic day 7.5 (E7.5), single Tarbp2 ^-/- and Prkra ^-/- mice survive beyond E7.5 and either die perinatally or survive and exhibit cranial/facial abnormalities, respectively. In contrast, only a few Tarbp2 ^-/- ; Prkra ^-/- double mutants survived beyond E

SUBMITTER: Pullagura SRN 

PROVIDER: S-EPMC5887145 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature