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The separate liver promoter allows glucokinase to be regulated differently in hepatocytes than in the neuroendocrine cells. Neuroendocrine cells of the pancreas, gut, and brain share some common aspects of glucokinase production, regulation, and function. [30] These tissues are collectively referred to as "neuroendocrine" cells in this context.
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.
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 ]
While most steps in gluconeogenesis are the reverse of those found in glycolysis, three regulated and strongly endergonic reactions are replaced with more kinetically favorable reactions. Hexokinase / glucokinase , phosphofructokinase , and pyruvate kinase enzymes of glycolysis are replaced with glucose-6-phosphatase , fructose-1,6 ...
This amplifies the effect of activating glycogen phosphorylase. This inhibition is achieved by a similar mechanism, as protein kinase A acts to phosphorylate the enzyme, which lowers activity. This is known as co-ordinate reciprocal control. Refer to glycolysis for further information of the regulation of glycogenesis.
The average adult should consume at least 0.35 grams of protein per pound of body weight daily to maintain their existing muscle mass and promote overall health, according to the The Academy of ...
The search for missing hiker Susan Lane-Fournier, 61, took a tragic turn after her body was found over the weekend in Welches, Oregon, an unincorporated community at the base of Mount Hood.
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].