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Glucokinase (EC 2.7.1.2) is an enzyme that facilitates phosphorylation of glucose to glucose-6-phosphate. Glucokinase occurs in cells in the liver and pancreas of humans and most other vertebrates .
In enzymology, an ADP-specific glucokinase (EC 2.7.1.147) also known as ADP-dependent glucokinase is an enzyme that catalyzes the chemical reaction. ADP + D-glucose AMP + D-glucose 6-phosphate. Thus, the two substrates of this enzyme are ADP and D-glucose, whereas its two products are AMP and D-glucose 6-phosphate.
The glucokinase regulatory protein (GKRP) also known as glucokinase (hexokinase 4) regulator (GCKR) is a protein produced in hepatocytes (liver cells). GKRP binds and moves glucokinase (GK), thereby controlling both activity and intracellular location [1] [2] of this key enzyme of glucose metabolism. [3] GKRP is a 68 kD protein of 626 amino acids.
The gene product is a regulatory protein that inhibits glucokinase in liver and pancreatic islet cells by binding non-covalently to form an inactive complex with the enzyme. This gene is considered a susceptibility gene candidate for a form of maturity onset diabetes of the young (MODY). [provided by RefSeq, Jul 2008].
In enzymology, a gluconokinase (EC 2.7.1.12) is an enzyme that catalyzes the chemical reaction ATP + D-gluconate ⇌ {\displaystyle \rightleftharpoons } ADP + 6-phospho-D-gluconate Thus, the two substrates of this enzyme are ATP and D-gluconate , whereas its two products are ADP and 6-phospho-D-gluconate .
Hexokinase/glucokinase, phosphofructokinase, and pyruvate kinase enzymes of glycolysis are replaced with glucose-6-phosphatase, fructose-1,6-bisphosphatase, and PEP carboxykinase/pyruvate carboxylase. These enzymes are typically regulated by similar molecules, but with opposite results.
This list contains a list of sub-classes for the seventh group of Enzyme Commission numbers, EC 7, translocases, placed in numerical order as determined by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology.
Glucokinase (GK) is an enzyme that helps in the glycolytic pathway by phosphorylating glucose into glucose-6-phosphate (G6P). It is an isozyme of hexokinase and is found mainly in pancreatic β cells, but also liver, gut, and brain cells where glycolysis cause glucose-induced insulin secretion. [2]