BAIT

NHX1

NHA2, VPL27, VPS44, bifunctional K:H/Na:H antiporter NHX1, L000004336, YDR456W

Na+/H+ and K+/H+ exchanger; required for intracellular sequestration of Na+ and K+; located in the vacuole and late endosome compartments; required for osmotolerance to acute hypertonic shock and for vacuolar fusion; ortholog of human NHE9, which is linked to autism

GO Process (4)

GO Function (2)

GO Component (5)

Gene Ontology Biological Process

cellular monovalent inorganic cation homeostasis [IMP]

potassium ion transmembrane transport [IMP]

sodium ion transmembrane transport [IMP]

vacuolar acidification [IMP]

Gene Ontology Molecular Function

potassium:proton antiporter activity [IMP]
sodium:proton antiporter activity [IMP]

Gene Ontology Cellular Component

early endosome [IDA]

fungal-type vacuole membrane [IDA]

integral component of membrane [ISM]

late endosome [IDA]

trans-Golgi network [IDA]

SGD Alliance of Genome Resources Entrez Gene RefSeq UniprotKB

Saccharomyces cerevisiae (S288c)

PREY

ELO3

SUR4, APA1, SRE1, VBM1, fatty acid elongase ELO3, L000002245, YLR372W

Elongase; involved in fatty acid and sphingolipid biosynthesis; synthesizes very long chain 20-26-carbon fatty acids from C18-CoA primers; involved in regulation of sphingolipid biosynthesis

GO Process (0)

GO Function (0)

GO Component (0)

SGD Alliance of Genome Resources Entrez Gene RefSeq UniprotKB

Saccharomyces cerevisiae (S288c)

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.

Publication

A Lipid E-MAP Identifies Ubx2 as a Critical Regulator of Lipid Saturation and Lipid Bilayer Stress.

Surma MA, Klose C, Peng D, Shales M, Mrejen C, Stefanko A, Braberg H, Gordon DE, Vorkel D, Ejsing CS, Farese R, Simons K, Krogan NJ, Ernst R

Biological membranes are complex, and the mechanisms underlying their homeostasis are incompletely understood. Here, we present a quantitative genetic interaction map (E-MAP) focused on various aspects of lipid biology, including lipid metabolism, sorting, and trafficking. This E-MAP contains âˆ¼250,000 negative and positive genetic interaction scores and identifies a molecular crosstalk of protein quality control pathways with lipid bilayer homeostasis. Ubx2p, ... [more]

Mol. Cell Aug. 22, 2013; 51(4);519-30 [Pubmed: 23891562]

Quantitative Score

-8.130337 [S score]

Throughput

High Throughput

Ontology Terms

phenotype: colony size (APO:0000063)

Additional Notes

An Epistatic MiniArray Profile (E-MAP) analysis was used to quantitatively score genetic interactions based on fitness defects estimated from the colony size of double versus single mutants. Genetic interactions were considered significant if they had an S score > 2.5 for positive interactions (suppression) and S score < -2.5 for negative interactions (synthetic sick/lethality).

Related interactions

Interaction	Experimental Evidence Code	Dataset	Throughput	Score	Curated By	Notes
ELO3 NHX1	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.	Hoppins S (2011)	High	-3.664	BioGRID	580647
NHX1 ELO3	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.	Miller JP (2005)	High	-	BioGRID	433644

Curated By

BioGRID

Interaction Summary