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HK2 - hexokinase 2
Entrez Gene Name: hexokinase 2
Synonyms: AI642394, DKFZp686M1669, HEXOKINASE 2, Hexokinase ii, HK2, HKII, HXK2, TYPE II HEXOKINASE

Gene Summary

  • Human (3099): Hexokinases phosphorylate glucose to produce glucose-6-phosphate, the first step in most glucose metabolism pathways. This gene encodes hexokinase 2, the predominant form found in skeletal muscle. It localizes to the outer membrane of mitochondria. Expression of this gene is insulin-responsive, and studies in rat suggest that it is involved in the increased rate of glycolysis seen in rapidly growing cancer cells. [provided by RefSeq]
  • Rat (25059): enzyme involved in the phosphorylation of glucose to produce glucose-6-phosphate; may be involved in the increased rate of glycolysis seen in cancer cells [RGD]

Cell Regulation

Regulates:
  • D-glucose
  • glucose-6-phosphate
  • mannose
View all 14 in IPA
Regulated by:
  • glucose-6-phosphate
  • HIF1A
  • MYC
View all 90 in IPA
Binds:
  • ELK1
  • PRKCE
  • UBQLN4
View all 12 in IPA
Role in cell:
  • cell death
  • apoptosis
  • glycolysis
View all 10 in IPA
Disease:
  • hypertension
  • bipolar affective disorder
View all 4 in IPA

Biological Process

carbohydrate phosphorylation, glucose catabolic process, glucose metabolic process, glycolysis, lactation

Cellular Components

cytosol, membrane, mitochondrial outer membrane, mitochondrion

Literature References

  • 18039843Sun L, Shukair S, Naik TJ, Moazed F, Ardehali H. Glucose Phosphorylation and Mitochondrial Binding Are Required for the Protective Effects of Hexokinases I and II.Mol Cell Biol 2008 Feb 01;28(3):1007-17
  • 15627654Gosmain Y, Dif N, Berbe V, Loizon E, Rieusset J, Vidal H, Lefai E. Regulation of SREBP-1 expression and transcriptional action on HKII and FAS genes during fasting and refeeding in rat tissues.J Lipid Res 2005 Apr 01;46(4):697-705
  • 12483532Debatin KM, Poncet D, Kroemer G. Chemotherapy: targeting the mitochondrial cell death pathway.Oncogene 2002 Dec 12;21(57):8786-8803
  • View 413 categorized literature findings and their references in IPA

Molecular Functions

ATP binding, catalytic activity, glucose binding, hexokinase activity, kinase activity, nucleotide binding, transferase activity

Protein Domains

Hexokinase, hexokinase domain, kinase

Subcellular Locations

cytoplasm, mitochondria