BAIT

VMA21

L000002466, YGR105W
Integral membrane protein required for V-ATPase function; not an actual component of the vacuolar H+-ATPase (V-ATPase) complex; diverged ortholog of human XMEA (X-linked Myopathy with Excessive Autophagy); functions in the assembly of the V-ATPase; localized to the yeast endoplasmic reticulum (ER)
GO Process (1)
GO Function (0)
GO Component (1)

Gene Ontology Biological Process

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)
PREY

RIM20

YOR275C
Protein involved in proteolytic activation of Rim101p; part of response to alkaline pH; PalA/AIP1/Alix family member; interaction with the ESCRT-III subunit Snf7p suggests a relationship between pH response and multivesicular body formation
GO Process (5)
GO Function (0)
GO Component (2)

Gene Ontology Biological Process

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

A Genome-wide Enhancer Screen Implicates Sphingolipid Composition in Vacuolar ATPase Function in Saccharomyces cerevisiae.

Finnigan GC, Ryan M, Stevens TH

The function of the vacuolar H(+)-ATPase enzyme complex is to acidify organelles; this process is critical for a variety of cellular processes and has implications in human disease. There are five accessory proteins that assist in assembly of the membrane portion of the complex, the V(0) domain. To identify additional elements that affect V-ATPase assembly, trafficking, or enzyme activity, we ... [more]

Unknown Dec. 31, 2010; 0(0); [Pubmed: 21196517]

Throughput

  • High Throughput

Ontology Terms

  • phenotype: vegetative growth (APO:0000106)
  • phenotype: metal resistance (APO:0000090)

Additional Notes

  • An SGA screen was used to identify genes that caused an increase in calcium or zinc sensitivity in a vma21QQ voa1::Hyg-R double mutant. VOA1 is genetically linked to the VMA21 locus. The voa1::Hyg-R allele enhances the V-ATPase deficiency of a vma21QQ mutant which has a dysfunctional ER retrieval motif.
  • Another SGA screen was also used to identify genes that caused an increase in calcium or zinc sensitivity in a vma21QQ voa1::Nat-R double mutant. Complete deletion of VOA1 (voa1::Nat-R) results in a decrease in steady-state levels of Vma21p.

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
VMA21 RIM20
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-0.171BioGRID
382487
RIM20 VMA21
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-0.171BioGRID
417340
RIM20 VMA21
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-0.2298BioGRID
2186456

Curated By

  • BioGRID