BAIT

CDC4

SCF ubiquitin ligase complex subunit CDC4, L000000244, YFL009W
F-box protein required for both the G1/S and G2/M phase transitions; modular substrate specificity factor which associates with core SCF (Cdc53p, Skp1p and Hrt1p/Rbx1p) to form the SCFCdc4 complex; SCFCdc4 acts as a ubiquitin-protein ligase directing ubiquitination of cyclin-dependent kinase (CDK) phosphorylated substrates, such as: Sic1p, Far1p, Cdc6p, Clb6p, and Cln3p
Saccharomyces cerevisiae (S288c)
PREY

GCN4

AAS101, AAS3, ARG9, amino acid starvation-responsive transcription factor GCN4, L000000683, YEL009C
bZIP transcriptional activator of amino acid biosynthetic genes; activator responds to amino acid starvation; expression is tightly regulated at both the transcriptional and translational levels
Saccharomyces cerevisiae (S288c)

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.

Publication

A refined two-hybrid system reveals that SCF(Cdc4)-dependent degradation of Swi5 contributes to the regulatory mechanism of S-phase entry.

Kishi T, Ikeda A, Koyama N, Fukada J, Nagao R

Ubiquitin-dependent degradation is implicated in various cellular regulatory mechanisms. The SCF(Cdc4) (Skp1, Cullin/Cdc53, and the F-box protein Cdc4) complex is an ubiquitin ligase complex that acts as a regulator of cell cycle, signal transduction, and transcription. These regulatory mechanisms are not well defined because of the difficulty in identifying the interaction between ubiquitin ligases and their substrates. To identify substrates ... [more]

Proc. Natl. Acad. Sci. U.S.A. Sep. 23, 2008; 105(38);14497-502 [Pubmed: 18787112]

Throughput

  • Low Throughput

Additional Notes

  • A refined two-hybrid system designed to inhibit ubiquitination of substrates was used to screen for substrates of the SCF-Cdc4 complex.

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
CDC4 GCN4
Biochemical Activity
Biochemical Activity

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.

Low-BioGRID
1033493
CDC4 GCN4
Dosage Lethality
Dosage Lethality

A genetic interaction is inferred when over expression or increased dosage of one gene causes lethality in a strain that is mutated or deleted for another gene.

Low-BioGRID
153830
CDC4 GCN4
Protein-peptide
Protein-peptide

An interaction is detected between a protein and a peptide derived from an interaction partner. This includes phage display experiments.

Low-BioGRID
-

Curated By

  • BioGRID