G6PC: Hydrolyzes glucose-6-phosphate to glucose in the endoplasmic reticulum. Forms with the glucose-6-phosphate transporter (SLC37A4/G6PT) the complex responsible for glucose production through glycogenolysis and gluconeogenesis. Hence, it is the key enzyme in homeostatic regulation of blood glucose levels. Defects in G6PC are the cause of glycogen storage disease type 1A (GSD1A). A metabolic disorder characterized by impairment of terminal steps of glycogenolysis and gluconeogenesis. Patients manifest a wide range of clinical symptoms and biochemical abnormalities, including hypoglycemia, severe hepatomegaly due to excessive accumulation of glycogen, kidney enlargement, growth retardation, lactic acidemia, hyperlipidemia, and hyperuricemia. Belongs to the glucose-6-phosphatase family.
Protein type: Transporter, SLC family; Endoplasmic reticulum; Membrane protein, integral; Transporter; Carbohydrate Metabolism - galactose; Carbohydrate Metabolism - glycolysis and gluconeogenesis; Phosphatase (non-protein); Membrane protein, multi-pass; EC 3.1.3.9; Carbohydrate Metabolism - starch and sucrose
Chromosomal Location of Human Ortholog: 17q21
Cellular Component: endoplasmic reticulum membrane; integral to membrane; integral to endoplasmic reticulum membrane
Molecular Function: glucose-6-phosphatase activity; phosphate binding; phosphotransferase activity, alcohol group as acceptor
Biological Process: response to food; glycogen metabolic process; steroid metabolic process; phosphorylated carbohydrate dephosphorylation; glycogen catabolic process; multicellular organism growth; glucose 6-phosphate metabolic process; pathogenesis; glucose transport; glucose homeostasis; gluconeogenesis; cholesterol homeostasis; triacylglycerol metabolic process; urate metabolic process; regulation of gene expression; glucose-6-phosphate transport; hexose transport; carbohydrate metabolic process; transmembrane transport
Disease: Glycogen Storage Disease Ia
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