BAIT

KCS1

inositol polyphosphate kinase KCS1, L000000889, YDR017C
Inositol hexakisphosphate and inositol heptakisphosphate kinase; generation of high energy inositol pyrophosphates by Kcs1p is required for many processes such as vacuolar biogenesis, stress response, and telomere maintenance; inositol hexakisphosphate is also known as IP6; inositol heptakisphosphate is also known as IP7
Saccharomyces cerevisiae (S288c)
PREY

OPI1

transcriptional regulator OPI1, L000001303, YHL020C
Transcriptional regulator of a variety of genes; phosphorylation by protein kinase A stimulates Opi1p function in negative regulation of phospholipid biosynthetic genes; involved in telomere maintenance; null exhibits disrupted mitochondrial metabolism and low cardiolipin content, strongly correlated with overproduction of inositol
Saccharomyces cerevisiae (S288c)

Phenotypic Enhancement

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

Publication

Regulation of inositol metabolism is fine-tuned by inositol pyrophosphates in Saccharomyces cerevisiae.

Ye C, Bandara WM, Greenberg ML

While inositol pyrophosphates have diverse roles in phosphate signaling and other important cellular processes, little is known about their functions in the biosynthesis of inositol and phospholipids. Here we show that KCS1, which encodes an inositol pyrophosphate kinase, is a regulator of inositol metabolism. Deletion of KCS1, which blocks synthesis of inositol pyrophosphates on the 5-hydroxyl of the inositol ring, ... [more]

J. Biol. Chem. Jul. 02, 2013; 0(0); [Pubmed: 23824185]

Throughput

  • Low Throughput

Additional Notes

  • Deletion of OPI1 in kcs1D restored PI levels

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
OPI1 KCS1
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-5.1429BioGRID
543555
OPI1 KCS1
Synthetic Rescue
Synthetic Rescue

A genetic interaction is inferred when mutations or deletions of one gene rescues the lethality or growth defect of a strain mutated or deleted for another gene.

Low-BioGRID
3571758
KCS1 OPI1
Synthetic Rescue
Synthetic Rescue

A genetic interaction is inferred when mutations or deletions of one gene rescues the lethality or growth defect of a strain mutated or deleted for another gene.

Low-BioGRID
879258

Curated By

  • BioGRID