PREY

RB1

OSRC, PPP1R130, RB, p105-Rb, pRb, pp110, RP11-174I10.1
retinoblastoma 1
GO Process (24)
GO Function (11)
GO Component (6)
Homo sapiens

Biochemical Activity (Sumoylation)

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

Viral oncoproteins E1A and E7 and cellular LxCxE proteins repress SUMO modification of the retinoblastoma tumor suppressor.

Ledl A, Schmidt D, Mueller S

The retinoblastoma tumor suppressor protein (pRB) is a major regulator of cell-cycle progression and cellular differentiation. Central to pRB function is the pocket domain, which serves as the main binding region for cellular regulators. In tumors pRB is frequently inactivated by mutations in the pocket domain or by binding of viral oncoproteins to this region. A characteristic feature of these ... [more]

Oncogene May. 26, 2005; 24(23);3810-8 [Pubmed: 15806172]

Throughput

  • Low Throughput

Additional Notes

  • SUMOylation conjugation
  • level of pRB SUMOylation controlled via interaction with viral and cellular LxCxE-motif proteins

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
UBE2I RB1
Reconstituted Complex
Reconstituted Complex

An interaction is inferred between proteins in vitro. This can include proteins in recombinant form or proteins isolated directly from cells with recombinant or purified bait. For example, GST pull-down assays where a GST-tagged protein is first isolated and then used to fish interactors from cell lysates are considered reconstituted complexes (e.g. PUBMED: 14657240, Fig. 4A or PUBMED: 14761940, Fig. 5). This can also include gel-shifts, surface plasmon resonance, isothermal titration calorimetry (ITC) and bio-layer interferometry (BLI) experiments. The bait-hit directionality may not be clear for 2 interacting proteins. In these cases the directionality is up to the discretion of the curator.

Low-BioGRID
-

Curated By

  • BioGRID