BAIT

LAG1

sphingosine N-acyltransferase LAG1, L000000928, YHL003C
Ceramide synthase component; involved in synthesis of ceramide from C26(acyl)-coenzyme A and dihydrosphingosine or phytosphingosine, functionally equivalent to Lac1p; forms ER foci upon DNA replication stress; homolog of human CERS2, a tumor metastasis suppressor gene whose silencing enahnces invasion/metastasis of prostate cancer cells; LAG1 has a paralog, LAC1, that arose from the whole genome duplication
GO Process (2)
GO Function (1)
GO Component (3)

Gene Ontology Biological Process

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)
PREY

YDC1

alkaline dihydroceramidase, YPL087W
Alkaline dihydroceramidase, involved in sphingolipid metabolism; preferentially hydrolyzes dihydroceramide to a free fatty acid and dihydrosphingosine; has a minor reverse activity; YDC1 has a paralog, YPC1, that arose from the whole genome duplication
GO Process (2)
GO Function (1)
GO Component (3)

Gene Ontology Biological Process

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)

Dosage Rescue

A genetic interaction is inferred when over expression or increased dosage of one gene rescues the lethality or growth defect of a strain that is mutated or deleted for another gene.

Publication

Suppressor analysis points to the subtle role of the LAG1 ceramide synthase gene in determining yeast longevity.

Jiang JC, Kirchman PA, Allen M, Jazwinski SM

Individual yeast cells display a finite replicative capacity. LAG1 was identified as a gene that is differentially expressed during the yeast replicative life span and was shown to play a role in determining yeast longevity. This gene is not essential, but simultaneous deletion of LAG1 and its close homologue LAC1 is lethal. Lag1p and Lac1p have been found to be ... [more]

Exp. Gerontol. Jul. 01, 2004; 39(7);999-1009 [Pubmed: 15236759]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: viability (APO:0000111)

Additional Notes

  • YBR183W and YPL087W are multicopy suppressors of the lethality of a lag1 lac1 double mutant

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
LAG1 YDC1
Dosage Rescue
Dosage Rescue

A genetic interaction is inferred when over expression or increased dosage of one gene rescues the lethality or growth defect of a strain that is mutated or deleted for another gene.

Low-BioGRID
162148
LAG1 YDC1
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
162154
LAG1 YDC1
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
521985

Curated By

  • BioGRID