BAIT

MAF1

RNA polymerase III-inhibiting protein MAF1, L000002614, YDR005C
Highly conserved negative regulator of RNA polymerase III; involved in tRNA processing and stability; inhibits tRNA degradation via rapid tRNA decay (RTD) pathway; binds N-terminal domain of Rpc160p subunit of Pol III to prevent closed-complex formation; localization and activity are regulated by phosphorylation, mediated by TORC1, protein kinase A, and Sch9p; localizes to cytoplasm during vegetative growth and translocates to nucleus and nucleolus under stress conditions
GO Process (2)
GO Function (1)
GO Component (3)

Gene Ontology Biological Process

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)
PREY

RPL20B

RPL18A1, ribosomal 60S subunit protein L20B, L20e, L20B, L18B, L000003148, YOR312C
Ribosomal 60S subunit protein L20B; homologous to mammalian ribosomal protein L18A, no bacterial homolog; RPL20B has a paralog, RPL20A, that arose from the whole genome duplication
GO Process (1)
GO Function (1)
GO Component (1)

Gene Ontology Biological Process

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)

Synthetic Growth Defect

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

Publication

Genetic interactions of MAF1 identify a role for Med20 in transcriptional repression of ribosomal protein genes.

Willis IM, Chua G, Tong AH, Brost RL, Hughes TR, Boone C, Moir RD

Transcriptional repression of ribosomal components and tRNAs is coordinately regulated in response to a wide variety of environmental stresses. Part of this response involves the convergence of different nutritional and stress signaling pathways on Maf1, a protein that is essential for repressing transcription by RNA polymerase (pol) III in Saccharomyces cerevisiae. Here we identify the functions buffering yeast cells that ... [more]

PLoS Genet. Jul. 01, 2008; 4(7);e1000112 [Pubmed: 18604275]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: fitness (APO:0000216)
  • phenotype: vegetative growth (APO:0000106)

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
RPL20B MAF1
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-0.1881BioGRID
2187105

Curated By

  • BioGRID