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| http://purl.uniprot.org/citations/24297901 | http://www.w3.org/2000/01/rdf-schema#comment | "Transcription initiation factor I (TIF-IA) plays an essential role in regulating ribosomal RNA (rRNA) synthesis by tethering RNA polymerase I (Pol I) to the rDNA promoter. We have found that activated Akt enhances rRNA synthesis through the phosphorylation of casein kinase IIα (CK2α) on a threonine residue near its N terminus. CK2 in turn phosphorylates TIF-IA, thereby increasing rDNA transcription. Activated Akt also stabilizes TIF-IA, induces its translocation to the nucleolus, and enhances its interaction with Pol I. Treatment with AZD8055, an inhibitor of both Akt and mammalian target of rapamycin phosphorylation, but not with rapamycin, disrupts Akt-mediated TIF-IA stability, translocation, and activity. These data support a model in which activated Akt enhances rRNA synthesis both by preventing TIF-IA degradation and phosphorylating CK2α, which in turn phosphorylates TIF-IA. This model provides an explanation for the ability of activated Akt to promote cell proliferation and, potentially, transformation."xsd:string |
| http://purl.uniprot.org/citations/24297901 | http://purl.org/dc/terms/identifier | "doi:10.1073/pnas.1313097110"xsd:string |
| http://purl.uniprot.org/citations/24297901 | http://purl.uniprot.org/core/author | "Mitchell B.S."xsd:string |
| http://purl.uniprot.org/citations/24297901 | http://purl.uniprot.org/core/author | "Nguyen l.e. X.T."xsd:string |
| http://purl.uniprot.org/citations/24297901 | http://purl.uniprot.org/core/date | "2013"xsd:gYear |
| http://purl.uniprot.org/citations/24297901 | http://purl.uniprot.org/core/name | "Proc Natl Acad Sci U S A"xsd:string |
| http://purl.uniprot.org/citations/24297901 | http://purl.uniprot.org/core/pages | "20681-20686"xsd:string |
| http://purl.uniprot.org/citations/24297901 | http://purl.uniprot.org/core/title | "Akt activation enhances ribosomal RNA synthesis through casein kinase II and TIF-IA."xsd:string |
| http://purl.uniprot.org/citations/24297901 | http://purl.uniprot.org/core/volume | "110"xsd:string |
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