BAIT

SMAD4

DPC4, JIP, MADH4, MYHRS
SMAD family member 4
GO Process (24)
GO Function (14)
GO Component (9)
Homo sapiens
PREY

STUB1

CHIP, HSPABP2, NY-CO-7, SCAR16, SDCCAG7, UBOX1, LA16c-313D11.6
STIP1 homology and U-box containing protein 1, E3 ubiquitin protein ligase
GO Process (15)
GO Function (15)
GO Component (10)
Homo sapiens

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.

Publication

CHIP mediates degradation of Smad proteins and potentially regulates Smad-induced transcription.

Li L, Xin H, Xu X, Huang M, Zhang X, Chen Y, Zhang S, Fu XY, Chang Z

Transforming growth factor beta (TGF-beta)/bone morphogenetic protein (BMP) family ligands interact with specific membrane receptor complexes that have serine/threonine kinase activities. The receptor phosphorylation and activation induced by the ligands leads to phosphorylation of the Smad proteins, which translocate to the nucleus, controlling gene expression. Thus, regulation of Smad proteins is a key step in TGF-beta/BMP-induced signal transduction. Here we ... [more]

Mol. Cell. Biol. Jan. 01, 2004; 24(2);856-64 [Pubmed: 14701756]

Throughput

  • Low Throughput

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
SMAD4 STUB1
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