BAIT

RPO21

RPB1, RPB220, SUA8, DNA-directed RNA polymerase II core subunit RPO21, B220, L000001744, YDL140C
RNA polymerase II largest subunit B220; part of central core; phosphorylation of C-terminal heptapeptide repeat domain regulates association with transcription and splicing factors; similar to bacterial beta-prime
GO Process (2)
GO Function (2)
GO Component (3)
Saccharomyces cerevisiae (S288c)
PREY

SIN3

CPE1, GAM2, RPD1, SDI1, SDS16, UME4, transcriptional regulator SIN3, L000001695, YOL004W
Component of both the Rpd3S and Rpd3L histone deacetylase complexes; involved in transcriptional repression and activation of diverse processes, including mating-type switching and meiosis; involved in the maintenance of chromosomal integrity
Saccharomyces cerevisiae (S288c)

Reconstituted Complex

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

Inherent asymmetry of Rpd3S coordinates its nucleosome engagement and association with elongating RNA polymerase II.

Pan Y, Liu M, Ruan C, Peng M, Hao M, Zhang Q, Xue J, Niu Y, Li N, Guan H, Wang P, Hu M, Li H, Wang W, Song J, Yao Y, Lao Y, Li B

The Rpd3S histone deacetylase complex has a crucial role in genomic integrity by deacetylating transcribed nucleosomes following RNA polymerase (Pol)?II passage. Cryo-EM studies highlight the importance of asymmetrical Rco1-Eaf3 dimers in nucleosome binding, yet the interaction dynamics with nucleosomal substrates alongside elongating Pol?II are poorly understood. Here we demonstrate the essential function of the Rco1 N-terminal intrinsically disordered region (IDR) ... [more]

Nat Struct Mol Biol Apr. 01, 2025; 32(4);687-697 [Pubmed: 39779918]

Throughput

  • Low Throughput

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
SIN3 RPO21
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-4.667BioGRID
218146
SIN3 RPO21
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-3.432BioGRID
308391

Curated By

  • BioGRID