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.

Publication

Ikaros interactions with CtBP reveal a repression mechanism that is independent of histone deacetylase activity.

Koipally J, Georgopoulos K

We have previously shown that Ikaros can repress transcription through the recruitment of histone deacetylase complexes. Here we provide evidence that Ikaros can also repress transcription through its interactions with the co-repressor, C-terminal binding protein (CtBP). CtBP interacts with Ikaros isoforms through a PEDLS motif present at the N terminus of these proteins but not with homologues like Aiolos which ... [more]

J. Biol. Chem. Jun. 30, 2000; 275(26);19594-602 [Pubmed: 10766745]

Throughput

Low Throughput

Additional Notes

CtBP interacts with Ikaros isoforms through a PEDLS motif present at the N terminus

Related interactions

Interaction	Experimental Evidence Code	Dataset	Throughput	Score	Curated By	Notes
IKZF1 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.	Huttlin EL (2021/pre-pub)	High	0.5298	BioGRID	3221453
CTBP1 IKZF1	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.	Koipally J (2000)	Low	-	BioGRID	244130
CTBP1 IKZF1	Two-hybrid Two-hybrid Bait protein expressed as a DNA binding domain (DBD) fusion and prey expressed as a transcriptional activation domain (TAD) fusion and interaction measured by reporter gene activation.	Corominas R (2014)	High	-	BioGRID	-
CTBP1 IKZF1	Two-hybrid Two-hybrid Bait protein expressed as a DNA binding domain (DBD) fusion and prey expressed as a transcriptional activation domain (TAD) fusion and interaction measured by reporter gene activation.	Rolland T (2014)	High	-	BioGRID	-
CTBP1 IKZF1	Two-hybrid Two-hybrid Bait protein expressed as a DNA binding domain (DBD) fusion and prey expressed as a transcriptional activation domain (TAD) fusion and interaction measured by reporter gene activation.	Vinayagam A (2011)	High	-	BioGRID	-
CTBP1 IKZF1	Two-hybrid Two-hybrid Bait protein expressed as a DNA binding domain (DBD) fusion and prey expressed as a transcriptional activation domain (TAD) fusion and interaction measured by reporter gene activation.	Yachie N (2016)	High	-	BioGRID	-

Curated By

BioGRID

Interaction Summary

CTBP1

Gene Ontology Biological Process

Gene Ontology Molecular Function

NAD binding [ISS]RNA polymerase II transcription corepressor activity [IDA]protein C-terminus binding [TAS]protein binding [IPI]protein domain specific binding [IDA, IPI]repressing transcription factor binding [IPI]transcription factor binding [IPI]

Gene Ontology Cellular Component

IKZF1