BAIT

CSNK2A2

CK2A2, CSNK2A1
casein kinase 2, alpha prime polypeptide
GO Process (3)
GO Function (2)
GO Component (3)

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Homo sapiens
PREY

MAF1

RNA polymerase III-inhibiting protein MAF1, L000002614, YDR005C
Highly conserved negative regulator of RNA polymerase III; involved in tRNA processing and stability; inhibits tRNA degradation via rapid tRNA decay (RTD) pathway; binds N-terminal domain of Rpc160p subunit of Pol III to prevent closed-complex formation; localization and activity are regulated by phosphorylation, mediated by TORC1, protein kinase A, and Sch9p; localizes to cytoplasm during vegetative growth and translocates to nucleus and nucleolus under stress conditions
GO Process (2)
GO Function (1)
GO Component (3)
Saccharomyces cerevisiae (S288c)

Biochemical Activity (Phosphorylation)

An interaction is inferred from the biochemical effect of one protein upon another, for example, GTP-GDP exchange activity or phosphorylation of a substrate by a kinase. The bait protein executes the activity on the substrate hit protein. A Modification value is recorded for interactions of this type with the possible values Phosphorylation, Ubiquitination, Sumoylation, Dephosphorylation, Methylation, Prenylation, Acetylation, Deubiquitination, Proteolytic Processing, Glucosylation, Nedd(Rub1)ylation, Deacetylation, No Modification, Demethylation.

Publication

Casein kinase II-mediated phosphorylation of general repressor Maf1 triggers RNA polymerase III activation.

Graczyk D, Debski J, Muszynska G, Bretner M, Lefebvre O, Boguta M

Maf1 protein is a global negative regulator of RNA polymerase (Pol) III transcription conserved from yeast to man. We report that phosphorylation of Maf1 by casein kinase II (CK2), a highly evolutionarily conserved eukaryotic kinase, is required for efficient Pol III transcription. Both recombinant human and yeast CK2 were able to phosphorylate purified human or yeast Maf1, indicating that Maf1 ... [more]

Proc. Natl. Acad. Sci. U.S.A. Mar. 22, 2011; 108(12);4926-31 [Pubmed: 21383183]

Throughput

  • Low Throughput

Additional Notes

  • Supplementary figure S4

Curated By

  • BioGRID