Deadenylation-dependent mRNA-decapping factor PAT1

UniProtKB accession:  P25644

Grouped By:  Matching UniProtKB accession

UniProtKB description:  Activator of decapping that functions as a general and active mechanism of translational repression and required for P-body formation. First decay factor recruited to mRNA, at a time when the mRNA is still associated with translation factors. Subsequently, PAT1 recruits the hepta-heterodimer LSM1-LSM7 complex to P-bodies (PubMed:10523645, PubMed:10747033, PubMed:10761922, PubMed:10913177, PubMed:11027264, PubMed:16179257, PubMed:17429074, PubMed:17513695, PubMed:17875743, PubMed:18086885, PubMed:18981231, PubMed:24247251, PubMed:25035297, PubMed:8816497). In association with the LSM1-LSM7 complex, stabilizes the 3' terminus of mRNAs (PubMed:11514438). This association is also required for mosaic virus genomic RNA translation (PubMed:12773554). Modulates the rates of mRNA-decapping that occur following deadenylation (PubMed:10523645, PubMed:10747033, PubMed:10761922, PubMed:10913177, PubMed:11027264, PubMed:16179257, PubMed:17429074, PubMed:17513695, PubMed:17875743, PubMed:18086885, PubMed:18981231, PubMed:24247251, PubMed:25035297, PubMed:8816497). Might be required for promoting the formation or the stabilization of the preinitiation translation complexes (PubMed:10779343, PubMed:20832728). Required for 40S ribosomal subunit joining to capped and/or polyadenylated mRNA (PubMed:10779343). With other P-body components, enhances the formation of retrotransposition-competent Ty1 virus-like particles (PubMed:19901074). Structural component of the kinetochore and associates with centromeres in a NDC10-dependent manner. Involved in maintaining the structural integrity of centromeric chromatin to facilitate faithful chromosome segregation and proper kinetochore function (PubMed:10394921, PubMed:23893485, PubMed:8972867).