Competitive inhibition of liver glucokinase by its regulatory protein
نویسندگان
چکیده
منابع مشابه
Elevated Glucose Represses Liver Glucokinase and Induces Its Regulatory Protein to Safeguard Hepatic Phosphate Homeostasis
OBJECTIVE The induction of hepatic glucose 6-phosphatase (G6pc) by glucose presents a paradox of glucose-induced glucose intolerance. We tested whether glucose regulation of liver gene expression is geared toward intracellular homeostasis. RESEARCH DESIGN AND METHODS The effect of glucose-induced accumulation of phosphorylated intermediates on expression of glucokinase (Gck) and its regulator...
متن کاملInhibition by catecholamines of the induction of rat liver glucokinase.
Epinephrine, norepinephrine, and isoproterenol prevent the induction of rat liver glucokinase (EC 2.7.1.2) produced by the administration of glucose to animals with low levels of the enzyme. The low levels of glucokinase were obtained by feeding the animals a carbohydrate-free diet for 6 days. When epinepbrine was given 4 hours after the administration of carbohydrate there was only a slight in...
متن کاملGlucokinase and glucokinase regulatory protein: mutual dependence for nuclear localization.
Conditional expression of the glucokinase regulatory protein in insulinoma cells, under control of the reverse tetracycline-dependent transactivator, was used to investigate whether expression of this protein de novo would alter the intracellular distribution of glucokinase. The regulatory protein, which was undetectable in the basal state, could be induced by doxycycline to levels comparable t...
متن کاملCorrection: Glucokinase Regulatory Protein Gene Polymorphism Affects Liver Fibrosis in Non-Alcoholic Fatty Liver Disease
BACKGROUND AND AIMS Variant in glucokinase regulatory protein (GCKR), associated with lipid and glucose traits, has been suggested to affect fatty liver infiltration. We aimed to assess whether GCKR rs780094 C→T SNP influences the expression of steatosis, lobular inflammation and fibrosis in NAFLD patients, after correction for PNPLA3 genotype. METHODS In 366 consecutive NAFLD patients (197 f...
متن کاملLifestyle Intervention for Weight Loss and Cardiometabolic Changes in the Setting of Glucokinase Regulatory Protein Inhibition: Glucokinase Regulatory Protein-Leu446Pro Variant in Look AHEAD.
BACKGROUND Glucokinase regulatory protein (GCKR) inhibitors offer a novel treatment approach for glucose control in diabetes mellitus; however, their cardiometabolic effects, particularly in relation to increased triglycerides and C-reactive protein (CRP) levels, are of concern. GCKR Leu446Pro is a common variant associated with reduced GCKR function, increased triglycerides, and CRP. METHODS...
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ژورنال
عنوان ژورنال: European Journal of Biochemistry
سال: 1991
ISSN: 0014-2956,1432-1033
DOI: 10.1111/j.1432-1033.1991.tb16217.x