BAIT

HRR25

KTI14, serine/threonine protein kinase HRR25, L000000810, YPL204W
Protein kinase; involved in regulating diverse events including vesicular trafficking, DNA repair, and chromosome segregation; binds the CTD of RNA pol II; phosphorylates the COPII coat; phosphorylates Tif6p which plays a critical role in 60S ribosomal subunit biogenesis; interacts with Sit4p phosphatase; homolog of mammalian casein kinase 1delta (CK1delta)
Kinome Project (Sc)
Saccharomyces cerevisiae (S288c)
PREY

SAP155

L000002598, YFR040W
Protein required for function of the Sit4p protein phosphatase; forms a complex with Sit4p; member of a family of similar proteins including Sap4p, Sap185p, and Sap190p; protein abundance increases in response to DNA replication stress; SAP155 has a paralog, SAP4, that arose from the whole genome duplication
Kinome Project (Sc)
GO Process (1)
GO Function (0)
GO Component (1)

Gene Ontology Biological Process

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)

Dosage Growth Defect

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

Publication

Elongator function depends on antagonistic regulation by casein kinase Hrr25 and protein phosphatase Sit4.

Mehlgarten C, Jablonowski D, Breunig KD, Stark MJ, Schaffrath R

In yeast, the role for the Elongator complex in tRNA anticodon modification is affected by phosphorylation of Elongator subunit Elp1. Thus, hyperphosphorylation of Elp1 due to inactivation of protein phosphatase Sit4 correlates with Elongator-minus phenotypes including resistance towards zymocin, a tRNase cleaving anticodons of Elongator-dependent tRNAs. Here we show that zymocin resistance of casein kinase hrr25 mutants associates with hypophosphorylation ... [more]

Mol. Microbiol. Sep. 01, 2009; 73(5);869-81 [Pubmed: 19656297]

Throughput

  • Low Throughput

Ontology Terms

  • toxin resistance (APO:0000215)
  • vegetative growth (APO:0000106)

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
SAP155 HRR25
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-0.1726BioGRID
2042077

Curated By

  • BioGRID