Maternal protein pumilio

UniProtKB accession:  P25822

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Sequence-specific RNA-binding protein that acts as a post-transcriptional repressor by binding the 3'-UTR of mRNA targets. Binds to an RNA consensus sequence, the Pumilio Response Element (PRE), 5'-UGUANAUA-3', that is related to the Nanos Response Element (NRE) (PubMed:1459455, PubMed:1576962, PubMed:9404893, PubMed:9660969, PubMed:22345517). Mediates post-transcriptional repression of transcripts via different mechanisms: acts via direct recruitment of deadenylase complexes leading to translational inhibition and mRNA degradation (By similarity). Also mediates deadenylation-independent repression by promoting accessibility of miRNAs (PubMed:22345517). Mediates post-transcriptional silencing of E2f mRNA by binding to its 3'-UTR and promoting miRNA regulation (PubMed:22345517). Required for abdominal development and to support proliferation and self-renewal of germ cells. Pum is the only gene required for nanos (nos) activity that is not also required for posterior localization of germline determinants. Pum is required during embryogenesis when nanos activity apparently moves anteriorly from the posterior pole (PubMed:1459455, PubMed:1576962, PubMed:9404893, PubMed:9660969).