Hexokinase-4 Recombinant Protein | GCK recombinant protein
Recombinant Human Hexokinase-4
Sterile filtered colorless solution.
Introduction: Hexokinases phosphorylate glucose to produce glucose-6-phosphate, thus committing glucose to the glycolytic pathway. Alternative splicing of Glucokinase results in three tissue-specific forms of glucokinase, one found in pancreatic islet beta cells and two found in liver. The protein localizes to the outer membrane of mitochondria. In contrast to other forms of hexokinase, HK4 is not inhibited by its product glucose-6-phosphate but remains active while glucose is abundant. Mutations in this gene have been associated with non-insulin dependent diabetes mellitus (NIDDM), maturity onset diabetes of the young, type 2 (MODY2) and persistent hyperinsulinemic hypoglycemia of infancy (PHHI).
NCBI and Uniprot Product Information
NCBI Description
Hexokinases phosphorylate glucose to produce glucose-6-phosphate, the first step in most glucose metabolism pathways. Alternative splicing of this gene results in three tissue-specific forms of glucokinase, one found in pancreatic islet beta cells and two found in liver. The protein localizes to the outer membrane of mitochondria. 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. Mutations in this gene have been associated with non-insulin dependent diabetes mellitus (NIDDM), maturity onset diabetes of the young, type 2 (MODY2) and persistent hyperinsulinemic hypoglycemia of infancy (PHHI). [provided by RefSeq, Apr 2009]
Uniprot Description
GK: a glycolytic enzyme that catalyzes glucose metabolism in the liver and pancreatic beta cells. Acts as a ""glucose sensor"" in beta cells. The first and rate-limiting step in glycosis, a pathway that produces energy in the form of ATP from glucose. Glucokinase traps glucose inside the cell by catalyzing its phosphorylation to produce glucose-6-phosphate. Has a lower affinity for glucose than the three other isozymes of hexokinase, allowing other organs such as the brain and muscles to have first call on glucose when its supply is limited. Unlike other hexokinases, glucokinase is not inhibited by glucose-6-phosphate. Glucokinase is found in the outer membrane compartment of mitochondria. May bind VDAC, suppressing mitochondrial function. Glucokinase transcription is induced by insulin, perhaps via the activation of Stat 5B. Mutant glucokinase causes a rare form of diabetes and may also play a role in type 2 diabetes. Three splice variant isoforms of human glucokinase have been described.
Protein type: EC 2.7.1.2; Carbohydrate Metabolism - galactose; Carbohydrate Metabolism - amino sugar and nucleotide sugar; Carbohydrate Metabolism - glycolysis and gluconeogenesis; Mitochondrial; Carbohydrate Metabolism - starch and sucrose; Kinase, other
Chromosomal Location of Human Ortholog: 7p15.3-p15.1
Cellular Component: nucleoplasm; mitochondrion; actin filament; cytosol; basal cortex; secretory granule
Molecular Function: protein binding; mannokinase activity; magnesium ion binding; fructokinase activity; glucokinase activity; ADP binding; protein phosphatase binding; ATP binding; glucose binding
Biological Process: glucose 6-phosphate metabolic process; positive regulation of glycogen biosynthetic process; lipid homeostasis; pathogenesis; glucose transport; glucose homeostasis; NADP metabolic process; cellular response to glucose starvation; detection of glucose; elevation of cytosolic calcium ion concentration; negative regulation of gluconeogenesis; regulation of glycolysis; transmembrane transport; second-messenger-mediated signaling; glycogen biosynthetic process; glycolysis; regulation of potassium ion transport; positive regulation of insulin secretion; glucose metabolic process; endocrine pancreas development; fructose 2,6-bisphosphate metabolic process; cellular response to insulin stimulus; hexose transport; positive regulation of glycolysis; carbohydrate metabolic process; carbohydrate phosphorylation; negative regulation of epinephrine secretion; cell glucose homeostasis; regulation of insulin secretion; positive regulation of phosphorylation
Disease: Hyperinsulinemic Hypoglycemia, Familial, 3; Diabetes Mellitus, Permanent Neonatal; Maturity-onset Diabetes Of The Young, Type 2; Diabetes Mellitus, Noninsulin-dependent
Research Articles on GCK
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Product Notes
The GCK gck (Catalog #AAA142782) is a Recombinant Protein produced from E Coli and is intended for research purposes only. The product is available for immediate purchase. The amino acid sequence is listed below: MGSSHHH HHH SSGLVPRGSH MLDDRARMEA AKKEKVEQIL AEFQLQEEDL KKVMRRMQKE MDRGLRLETH EEASVKMLPT YVRSTPEGSE VGDFLSLDLG GTNFRVMLVK VGEGEEGQWS VKTKHQMYSI PEDAMTGTAE MLFDYISECI SDFLDKHQMK HKKLPLGFTF SFPVRHEDID KGILLNWTKG FKASGAEGNN VVGLLRDAIK RRGDFEMDVV AMVNDTVATM ISCYYEDHQC EVGMIVGTGC NACYMEEMQN VELVEGDEGR MCVNTEWGAF GDSGELDEFL LEYDRLVDES SANPGQQLYE KLIGGKYMGE LVRLVLLRLV DENLLFHGEA SEQLRTRGAF ETRFVSQVES DTGDRKQIYN ILSTLGLRPS TTDCDIVRRA CESVSTRAAH MCSAGLAGVI NRMRESRSED VMRITVGVDG SVYKLHPSFK ERFHASVRRL TPSCEITFIE SEEGSGRGAA LVSAVACKKA CMLGQ. It is sometimes possible for the material contained within the vial of "Hexokinase-4, Recombinant Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.Disclaimer
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