Biochemical Activity (Ubiquitination)

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 RNA-binding ubiquitin ligase MKRN1 functions in ribosome-associated quality control of poly(A) translation.

Hildebrandt A, Brueggemann M, Rueckle C, Boerner S, Heidelberger JB, Busch A, Haenel H, Voigt A, Moeckel MM, Ebersberger S, Scholz A, Dold A, Schmid T, Ebersberger I, Roignant JY, Zarnack K, Koenig J, Beli P

Cells have evolved quality control mechanisms to ensure protein homeostasis by detecting and degrading aberrant mRNAs and proteins. A common source of aberrant mRNAs is premature polyadenylation, which can result in non-functional protein products. Translating ribosomes that encounter poly(A) sequences are terminally stalled, followed by ribosome recycling and decay of the truncated nascent polypeptide via ribosome-associated quality control.Here, we demonstrate ... [more]

Genome Biol. Dec. 22, 2018; 20(1);216 [Pubmed: 31640799]

Throughput

  • Low Throughput

Additional Notes

  • in vitro ubiquitination with UBE1 as E1, UBC5a as E2, MKRN1 as E3 and the indicated hit protein as substrate

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
MKRN1 RPS10
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
2907576

Curated By

  • BioGRID