BAIT

FBXO40

9830003A13Rik, mKIAA1195
F-box protein 40
GO Process (0)
GO Function (0)
GO Component (1)

Gene Ontology Cellular Component

Mus musculus
PREY

IRS1

G972R, IRS-1
insulin receptor substrate 1
GO Process (28)
GO Function (10)
GO Component (9)
Mus musculus

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 SCF-Fbxo40 complex induces IRS1 ubiquitination in skeletal muscle, limiting IGF1 signaling.

Shi J, Luo L, Eash J, Ibebunjo C, Glass DJ

Insulin-like growth factor 1 (IGF1) induces skeletal muscle hypertrophy by activating the IGF1R/IRS1/PI3K/Akt pathway. However the effect of IGF1 in differentiated muscle is limited by IRS1 ubiquitination and proteasome-mediated breakdown. In skeletal muscle, IGF1R activation sensitizes IRS1 to degradation, and a screen for the responsible E3 ligase identified Fbxo40 as mediating this rapid turnover of IRS1, since IRS1 loss can ... [more]

Dev. Cell Nov. 15, 2011; 21(5);835-47 [Pubmed: 22033112]

Throughput

  • Low Throughput

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
FBXO40 IRS1
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