BAIT

HXK2

HEX1, HKB, SCI2, hexokinase 2, L000000834, YGL253W
Hexokinase isoenzyme 2; catalyzes phosphorylation of glucose in the cytosol; predominant hexokinase during growth on glucose; functions in the nucleus to repress expression of HXK1 and GLK1 and to induce expression of its own gene; antiapoptotic; phosphorylation/dephosphorylation at serine-14 by protein kinase Snf1p and protein phosphatase Glc7p-Reg1p regulates nucleocytoplasmic shuttling of Hxk2p; HXK2 has a paralog, HXK1, that arose from the whole genome duplication
Saccharomyces cerevisiae (S288c)
PREY

GLK1

HOR3, glucokinase, L000000708, YCL040W
Glucokinase; catalyzes the phosphorylation of glucose at C6 in the first irreversible step of glucose metabolism; one of three glucose phosphorylating enzymes; expression regulated by non-fermentable carbon sources; GLK1 has a paralog, EMI2, that arose from the whole genome duplication
GO Process (4)
GO Function (1)
GO Component (2)

Gene Ontology Biological Process

Gene Ontology Molecular Function

Gene Ontology Cellular Component

Saccharomyces cerevisiae (S288c)

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.

Publication

Nuclear export of the yeast hexokinase 2 protein requires the Xpo1 (Crm1)-dependent pathway.

Pelaez R, Herrero P, Moreno F

Hexokinase 2 (Hxk2) from Saccharomyces cerevisiae was one of the first metabolic enzymes described as a multifunctional protein. Hxk2 has a double subcellular localization; it functions as a glycolytic enzyme in the cytoplasm and as a regulator of gene transcription of several Mig1-regulated genes in the nucleus. However, the mechanism by which Hxk2 enters and leaves the nucleus is still ... [more]

J. Biol. Chem. Jul. 31, 2009; 284(31);20548-55 [Pubmed: 19525230]

Throughput

  • Low Throughput

Ontology Terms

  • phenotype: utilization of carbon source (APO:0000098)
  • phenotype: inviable (APO:0000112)

Additional Notes

  • Triple mutant HXK1/HXK2/GLK1 cannot grow on glucose

Related interactions

InteractionExperimental Evidence CodeDatasetThroughputScoreCurated ByNotes
HXK2 GLK1
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
237964
GLK1 HXK2
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
161704
GLK1 HXK2
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.

High-BioGRID
348113

Curated By

  • BioGRID