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

Smad6 recruits transcription corepressor CtBP to repress bone morphogenetic protein-induced transcription.

Lin X, Liang YY, Sun B, Liang M, Shi Y, Brunicardi FC, Shi Y, Feng XH

Smad6 and Smad7 are inhibitory Smads induced by transforming growth factor beta-Smad signal transduction pathways in a negative-feedback mechanism. Previously it has been thought that inhibitory Smads bind to the type I receptor and block the phosphorylation of receptor-activated Smads, thereby inhibiting the initiation of Smad signaling. Conversely, few studies have suggested the possible nuclear functions of inhibitory Smads. Here, ... [more]

Mol. Cell. Biol. Dec. 01, 2003; 23(24);9081-93 [Pubmed: 14645520]

Throughput

  • Low Throughput

Additional Notes

  • CtBP-binding motif, PLDLS, was identified in the linker region of Smad6; mutation in the motif abolished the Smad6 binding to CtBP and subsequently its repressor activity of transcription

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
SMAD6 CTBP1
Affinity Capture-MS
Affinity Capture-MS

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 is identified by mass spectrometric methods.

Low-BioGRID
-

Curated By

  • BioGRID