BAIT

TAF4

MPT1, TAF48, TSG2, TafII48, L000001144, YMR005W
TFIID subunit (48 kDa); involved in RNA polymerase II transcription initiation; potential Cdc28p substrate
Saccharomyces cerevisiae (S288c)
PREY

TOA1

L000002316, YOR194C
TFIIA large subunit; involved in transcriptional activation, acts as antirepressor or as coactivator; required, along with Toa2p, for ribosomal protein gene transcription in vivo; homologous to largest and second largest subunits of human and Drosophila TFIIA
Saccharomyces cerevisiae (S288c)

Phenotypic Suppression

A genetic interaction is inferred when mutation or over expression of one gene results in suppression of any phenotype (other than lethality/growth defect) associated with mutation or over expression of another gene.

Publication

Direct TFIIA-TFIID protein contacts drive budding yeast ribosomal protein gene transcription.

Layer JH, Weil PA

We have previously shown that yeast TFIID provides coactivator function on the promoters of ribosomal protein-encoding genes (RPGs) by making direct contact with the transactivator repressor activator protein 1 (Rap1). Further, our structural studies of assemblies generated with purified Rap1, TFIID, and TFIIA on RPG enhancer-promoter DNA indicate that Rap1-TFIID interaction induces dramatic conformational rearrangements of enhancer-promoter DNA and TFIID-bound ... [more]

J. Biol. Chem. Aug. 09, 2013; 288(32);23273-94 [Pubmed: 23814059]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: rna accumulation (APO:0000224)

Additional Notes

  • Figure 10
  • TOA1 and TOA2 co-overexpression rescues transcription defect of taf4 mutants
  • genetic complex

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
TOA1 TAF4
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
1174898
TAF4 TOA1
Dosage Rescue
Dosage Rescue

A genetic interaction is inferred when over expression or increased dosage of one gene rescues the lethality or growth defect of a strain that is mutated or deleted for another gene.

Low-BioGRID
1174901
TOA1 TAF4
Negative Genetic
Negative Genetic

Mutations/deletions in separate genes, each of which alone causes a minimal phenotype, but when combined in the same cell results in a more severe fitness defect or lethality under a given condition. This term is reserved for high or low throughput studies with scores.

High-0.456BioGRID
1952882
TAF4 TOA1
Reconstituted Complex
Reconstituted Complex

An interaction is detected between purified proteins in vitro.

Low-BioGRID
1174899

Curated By

  • BioGRID