BAIT

GTR1

Rag GTPase GTR1, L000000742, YML121W
Cytoplasmic GTPase; forms a heterodimer with Gtr2p to stimulate TORC1 in response to amino acids; component of GSE complex, which is required for sorting of Gap1p; involved in phosphate transport and telomeric silencing; similar to human RagA and RagB
Saccharomyces cerevisiae (S288c)
PREY

PIB2

S000007475, YGL023C
Protein of unknown function; contains FYVE domain; similar to Fab1 and Vps27
GO Process (0)
GO Function (0)
GO Component (1)

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)

Dosage Lethality

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

Publication

Pib2 and EGO Complex are both required for activation of TORC1.

Varlakhanova NV, Mihalevic M, Bernstein KA, Ford MGJ

The TORC1 complex is a key regulator of cell growth and metabolism in Saccharomyces cerevisiae The vacuole-associated EGO Complex couples activation of TORC1 to the availability of amino acids, specifically glutamine and leucine. EGO Complex is also essential for reactivation of TORC1 following rapamycin-induced growth arrest and for its distribution on the vacuolar membrane. Pib2, a FYVE-containing PI3P-binding protein, is ... [more]

J. Cell. Sci. Oct. 09, 2017; (); [Pubmed: 28993463]

Throughput

  • High Throughput

Ontology Terms

  • phenotype: inviable (APO:0000112)

Additional Notes

  • pib2 was lethal when overexpressed in the mutant background

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
GTR1 PIB2
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-0.6487BioGRID
2160149
PIB2 GTR1
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-0.444BioGRID
2114377
PIB2 GTR1
PCA
PCA

A Protein-Fragment Complementation Assay (PCA) is a protein-protein interaction assay in which a bait protein is expressed as fusion to one of the either N- or C- terminal peptide fragments of a reporter protein and prey protein is expressed as fusion to the complementary N- or C- terminal fragment of the same reporter protein. Interaction of bait and prey proteins bring together complementary fragments, which can then fold into an active reporter, e.g. the split-ubiquitin assay.

High-BioGRID
-
PIB2 GTR1
Phenotypic Enhancement
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.

Low-BioGRID
2451224
PIB2 GTR1
Phenotypic Suppression
Phenotypic Suppression

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

Low-BioGRID
2546213
PIB2 GTR1
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
1503960
PIB2 GTR1
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
2451222

Curated By

  • BioGRID