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

Functional regulation of the epithelial Na+ channel by IkappaB kinase-beta occurs via phosphorylation of the ubiquitin ligase Nedd4-2.

Edinger RS, Lebowitz J, Li H, Alzamora R, Wang H, Johnson JP, Hallows KR

We have previously shown that IkappaB kinase-beta (IKKbeta) interacts with the epithelial Na+ channel (ENaC) beta-subunit and enhances ENaC activity by increasing its surface expression in Xenopus oocytes. Here, we show that the IKKbeta-ENaC interaction is physiologically relevant in mouse polarized kidney cortical collecting duct (mpkCCDc14) cells, as RNA interference-mediated knockdown of endogenous IKKbeta in these cells by approximately 50% ... [more]

J. Biol. Chem. Jan. 02, 2009; 284(1);150-7 [Pubmed: 18981174]

Throughput

  • Low Throughput

Curated By

  • BioGRID