BAIT

MOT3

ROX7, [MOT3], [MOT3+], L000002675, YMR070W
Transcriptional repressor and activator with two C2-H2 zinc fingers; involved in repression of a subset of hypoxic genes by Rox1p, repression of several DAN/TIR genes during aerobic growth and ergosterol biosynthetic genes in response to hyperosmotic stress; contributes to recruitment of Tup1p-Cyc8p general repressor to promoters; involved in positive transcriptional regulation of CWP2 and other genes; relocalizes to the cytosol in response to hypoxia; can form [MOT3+] prion
Saccharomyces cerevisiae (S288c)
PREY

ROX1

REO1, L000001661, YPR065W
Heme-dependent repressor of hypoxic genes; mediates aerobic transcriptional repression of hypoxia induced genes such as COX5b and CYC7; repressor function regulated through decreased promoter occupancy in response to oxidative stress; contains an HMG domain that is responsible for DNA bending activity; involved in the hyperosmotic stress resistance
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

Repression of ergosterol biosynthesis is essential for stress resistance and is mediated by the Hog1 MAP kinase and the Mot3 and Rox1 transcription factors.

Montanes FM, Pascual-Ahuir A, Proft M

Hyperosmotic stress triggers a complex adaptive response that is dominantly regulated by the Hog1 MAP kinase in yeast. Here we characterize a novel physiological determinant of osmostress tolerance, which involves the Hog1-dependent transcriptional downregulation of ergosterol biosynthesis genes (ERG). Yeast cells considerably lower their sterol content in response to high osmolarity. The transcriptional repressors Mot3 and Rox1 are essential for ... [more]

Mol. Microbiol. Feb. 01, 2011; 79(4);1008-23 [Pubmed: 21299653]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: vegetative growth (APO:0000106)

Additional Notes

  • double mutants show decreased growth under salt stress

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
MOT3 ROX1
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
156403
ROX1 MOT3
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
1115084
MOT3 ROX1
Synthetic Growth Defect
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.

Low-BioGRID
1115083

Curated By

  • BioGRID