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General description of the gene and the encoded protein(s) using information from HGNC and Ensembl, as well as predictions made by the Human Protein Atlas project.
Gene namei
Official gene symbol, which is typically a short form of the gene name, according to HGNC.
Assigned HPA protein class(es) for the encoded protein(s).
Disease related genes Enzymes Human disease related genes Metabolic proteins Potential drug targets
Predicted locationi
All transcripts of all genes have been analyzed regarding the location(s) of corresponding protein based on prediction methods for signal peptides and transmembrane regions.
Genes with at least one transcript predicted to encode a secreted protein, according to prediction methods or to UniProt location data, have been further annotated and classified with the aim to determine if the corresponding protein(s) are secreted or actually retained in intracellular locations or membrane-attached.
Remaining genes, with no transcript predicted to encode a secreted protein, will be assigned the prediction-based location(s).
The annotated location overrules the predicted location, so that a gene encoding a predicted secreted protein that has been annotated as intracellular will have intracellular as the final location.
Gene information from Ensembl and Entrez, as well as links to available gene identifiers are displayed here. Information was retrieved from Ensembl if not indicated otherwise.
Chromosome
7
Cytoband
p13
Chromosome location (bp)
44143213 - 44198170
Number of transcriptsi
Number of protein-coding transcripts from the gene as defined by Ensembl.
Useful information about the protein provided by UniProt.
Catalyzes the phosphorylation of hexose, such as D-glucose, D-fructose and D-mannose, to hexose 6-phosphate (D-glucose 6-phosphate, D-fructose 6-phosphate and D-mannose 6-phosphate, respectively) 1,2,3,4,5,6,7,8. Compared to other hexokinases, has a weak affinity for D-glucose, and is effective only when glucose is abundant (By similarity). Mainly expressed in pancreatic beta cells and the liver and constitutes a rate-limiting step in glucose metabolism in these tissues 9,10,11,12,13. Since insulin secretion parallels glucose metabolism and the low glucose affinity of GCK ensures that it can change its enzymatic activity within the physiological range of glucose concentrations, GCK acts as a glucose sensor in the pancreatic beta cell (By similarity). In pancreas, plays an important role in modulating insulin secretion (By similarity). In liver, helps to facilitate the uptake and conversion of glucose by acting as an insulin-sensitive determinant of hepatic glucose usage (By similarity). Required to provide D-glucose 6-phosphate for the synthesis of glycogen 14. Mediates the initial step of glycolysis by catalyzing phosphorylation of D-glucose to D-glucose 6-phosphate 15....show less
Molecular function (UniProt)i
Keywords assigned by UniProt to proteins due to their particular molecular function.
Allosteric enzyme, Kinase, Transferase
Biological process (UniProt)i
Keywords assigned by UniProt to proteins because they are involved in a particular biological process.
Glycolysis
Ligand (UniProt)i
Keywords assigned by UniProt to proteins because they bind, are associated with, or whose activity is dependent of some molecule.
ATP-binding, Nucleotide-binding
Gene summary (Entrez)i
Useful information about the gene from Entrez
This gene encodes a member of the hexokinase family of proteins. Hexokinases phosphorylate glucose to produce glucose-6-phosphate, the first step in most glucose metabolism pathways. In contrast to other forms of hexokinase, this enzyme is not inhibited by its product glucose-6-phosphate but remains active while glucose is abundant. The use of multiple promoters and alternative splicing of this gene result in distinct protein isoforms that exhibit tissue-specific expression in the pancreas and liver. In the pancreas, this enzyme plays a role in glucose-stimulated insulin secretion, while in the liver, this enzyme is important in glucose uptake and conversion to glycogen. Mutations in this gene that alter enzyme activity have been associated with multiple types of diabetes and hyperinsulinemic hypoglycemia. [provided by RefSeq, Aug 2017]...show less
PROTEIN INFORMATIONi
The protein information section displays alternative protein-coding transcripts (splice variants) encoded by this gene according to the Ensembl database.
The Splice variant identifier links to the Ensembl website protein summary for the selected splice variant. The data in the Swissprot and TrEMBL columns links to corresponding pages in the UniProt database.
The protein classes assigned to this protein are shown if expanding the data in the protein class column. Parent protein classes are in bold font and subclasses are listed under the parent class.
The length of the protein (amino acid residues according to Ensembl), molecular mass (kDalton), predicted signal peptide and number of predicted transmembrane region(s) according to in-house majority decision methods based on sets of predictors are also reported.
Metabolic proteins SPOCTOPUS predicted membrane proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Congenital disorders of metabolism Other congenital disorders of metabolism Endocrine and metabolic diseases Diabetes
Enzymes ENZYME proteins Transferases Metabolic proteins SPOCTOPUS predicted membrane proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Disease related genes Potential drug targets Human disease related genes Congenital disorders of metabolism Other congenital disorders of metabolism Endocrine and metabolic diseases Diabetes Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014)
Enzymes ENZYME proteins Transferases Metabolic proteins SPOCTOPUS predicted membrane proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Disease related genes Potential drug targets Human disease related genes Congenital disorders of metabolism Other congenital disorders of metabolism Endocrine and metabolic diseases Diabetes Mapped to neXtProt neXtProt - Evidence at protein level Protein evidence (Kim et al 2014)
Metabolic proteins SPOCTOPUS predicted membrane proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Congenital disorders of metabolism Other congenital disorders of metabolism Endocrine and metabolic diseases Diabetes
Metabolic proteins SCAMPI predicted membrane proteins SPOCTOPUS predicted membrane proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Congenital disorders of metabolism Other congenital disorders of metabolism Endocrine and metabolic diseases Diabetes
Metabolic proteins SPOCTOPUS predicted membrane proteins Predicted intracellular proteins Intracellular proteins predicted by MDM and MDSEC Human disease related genes Congenital disorders of metabolism Other congenital disorders of metabolism Endocrine and metabolic diseases Diabetes
The Human Protein Atlas project is funded
