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

The CK2-Nrf1 axis controls the clearance of ubiquitinated proteins by regulating proteasome gene expression.

Tsuchiya Y, Taniguchi H, Ito Y, Morita T, Karim MR, Ohtake N, Fukagai K, Ito T, Okamuro S, Iemura SI, Natsume T, Nishida E, Kobayashi A

Impairment of the ubiquitin-proteasome system (UPS) has been implicated in the pathogenesis of human diseases, including neurodegenerative disorders. Thus, stimulating proteasome activity is a promising strategy to ameliorate these age-related diseases. Here we show that the protein kinase CK2 regulates the transcriptional activity of Nrf1 to control the expression of the proteasome genes and thus the clearance of ubiquitinated proteins. ... [more]

Mol. Cell. Biol. Jul. 01, 2013; 0(0); [Pubmed: 23816881]

Throughput

  • Low Throughput

Additional Notes

  • CK2 phosphorylates Nrf1 at Ser 497

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
NRF1 CSNK2A1
Affinity Capture-Western
Affinity Capture-Western

An interaction is inferred when a bait protein is affinity captured from cell extracts by either polyclonal antibody or epitope tag and the associated interaction partner identified by Western blot with a specific polyclonal antibody or second epitope tag. This category is also used if an interacting protein is visualized directly by dye stain or radioactivity. Note that this differs from any co-purification experiment involving affinity capture in that the co-purification experiment involves at least one extra purification step to get rid of potential contaminating proteins.

Low-BioGRID
-

Curated By

  • BioGRID