BAIT

RRN3

L000003362, YKL125W
Protein required for transcription of rDNA by RNA polymerase I; transcription factor independent of DNA template; involved in recruitment of RNA polymerase I to rDNA; structure reveals unique HEAT repeat fold and a surface serine patch; phosphorylation of serine patch impairs cell growth and reduces RNA polymerase I binding in vitro and RNA polymerase I recruitment to the rDNA gene in vivo
Saccharomyces cerevisiae (S288c)
PREY

RPA43

DNA-directed RNA polymerase I subunit RPA43, A43, L000003029, YOR340C
RNA polymerase I subunit A43
GO Process (2)
GO Function (1)
GO Component (1)

Gene Ontology Biological Process

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)

Co-crystal Structure

Interaction directly demonstrated at the atomic level by X-ray crystallography. Also used for NMR or Electron Microscopy (EM) structures. If there is no obvious bait-hit directionality to the interaction involving 3 or more proteins, then the co-crystallized proteins should be listed as a complex.

Publication

The dynamic assembly of distinct RNA polymerase I complexes modulates rDNA transcription.

Torreira E, Louro JA, Pazos I, Gonzalez-Polo N, Gil-Carton D, Duran AG, Tosi S, Gallego O, Calvo O, Fernandez-Tornero C

Cell growth requires synthesis of ribosomal RNA by RNA polymerase I (Pol I). Binding of initiation factor Rrn3 activates Pol I, fostering recruitment to ribosomal DNA promoters. This fundamental process must be precisely regulated to satisfy cell needs at any time. We present in vivo evidence that, when growth is arrested by nutrient deprivation, cells induce rapid clearance of Pol ... [more]

Elife Mar. 06, 2017; 6(); [Pubmed: 28262097]

Throughput

  • Low Throughput

Additional Notes

  • cryo-EM

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
RRN3 RPA43
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
1114848
RRN3 RPA43
Synthetic Lethality
Synthetic Lethality

A genetic interaction is inferred when mutations or deletions in separate genes, each of which alone causes a minimal phenotype, result in lethality when combined in the same cell under a given condition.

Low-BioGRID
158700

Curated By

  • BioGRID