HU-1, MAPKAPK1A, RSK, RSK1, p90Rsk, RP11-492M19.2
ribosomal protein S6 kinase, 90kDa, polypeptide 1
GO Process (26)
GO Function (4)
GO Component (4)

Gene Ontology Cellular Component

Homo sapiens


ER, ESR, ESRA, ESTRR, Era, NR3A1, RP1-130E4.1
estrogen receptor 1
GO Process (22)
GO Function (16)
GO Component (6)
Homo sapiens

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.


pp90rsk1 regulates estrogen receptor-mediated transcription through phosphorylation of Ser-167.

Joel PB, Smith J, Sturgill TW, Fisher TL, Blenis J, Lannigan DA

The estrogen receptor alpha (ER), a member of the steroid receptor superfamily, contains an N-terminal hormone-independent transcriptional activation function (AF-1) and a C-terminal hormone-dependent transcriptional activation function (AF-2). Here, we used in-gel kinase assays to determine that pp90rsk1 activated by either epidermal growth factor (EGF) or phorbol myristate acetate specifically phosphorylates Ser-167 within AF-1. In vitro kinase assays demonstrated that ... [more]

Mol. Cell. Biol. Apr. 01, 1998; 18(4);1978-84 [Pubmed: 9528769]


  • Low Throughput

Curated By

  • BioGRID