| glucose solution, hypertonic | Solution that is usually 10 percent glucose but may be higher. An isotonic solution of glucose is 5 percent. (12 Dec 1998) |
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| glucose tolerance factor | A water-soluble complex containing chromium needed for normal glucose tolerance. (05 Mar 2000) |
| glucose tolerance test | <chemical pathology, investigation> A special test where the blood glucose is measure in intervals after a glucose-rich meal is taken, a test used for diagnosing diabetes. (27 Sep 1997) |
| glucose-1-fructose-2-oxidoreductase | <enzyme> Catalyses intermolecular oxidation-reduction of glucose and fructose to form gluconolactone and sorbitol; contains tightly bound nadp as h+ carrier; does not require added cofactor Registry number: EC 1.1.1.- (26 Jun 1999) |
| glucose-1-phosphatase | <enzyme> Catalyses the conversion of d-glucose 1-phosphate and water to d-glucose and orthophosphate Registry number: EC 3.1.3.10 Synonym: agp gene product (26 Jun 1999) |
| glucose-1-phosphate adenylyltransferase | <enzyme> Shrunken-2 (sh2) protein is a subunit of this enzyme Registry number: EC 2.7.7.27 Synonym: adpg synthetase, adpglucose pyrophosphorylase, ADP-glucose synthetase, shrunken-2 protein, shrunken gene product, ADP-glucose pyrophosphorylase, glgc gene product, bt2 gene product, brittle-2 gene product (26 Jun 1999) |
| glucose-1-phosphate kinase | <enzyme> An enzyme that, in the presence of ATP, catalyses the phosphorylation of d-glucose 1-phosphate to form d-glucose 1,6-bisphosphate and ADP; found in yeast and muscle; d-glucose 1,6-bisphosphate is a required cofactor of one of the enzymes in glycogenolysis. Synonym: glucose-1-phosphate kinase. (05 Mar 2000) |
| glucose-1-phosphate phosphodismutase | A phosphotransferase catalyzing the reversible transfer of a phosphate residue from one d-glucose 1-phosphate to another, yielding d-glucose 1,6-bisphosphate and d-glucose. This enzyme provides a crucial intermediate needed for glucose-phosphate isomerase. (05 Mar 2000) |
| glucose-1-phosphate uridylyltransferase | <enzyme> An enzyme that activates d-glucose by reacting d-glucose 1-phosphate with UTP, producing pyrophosphate and UDP glucose; a crucial step in glycogen biosynthesis. (05 Mar 2000) |
| glucose-1-phospho-D-mannosylglycoprotein phosphodiesterase | <enzyme> Removes the glucose-1-phosphate from glc-alpha-1-p-6-mannose residues in glycoproteins as a unit; pH optimum 7.5 Registry number: EC 3.1.4.51 Synonym: ag1p phosphodiesterase, alpha-glucose-1-phosphate phosphodiesterase (26 Jun 1999) |
| glucose-3-phosphatase | <enzyme> From rat liver; has glucose-3-phosphate hydrolytic activity Registry number: EC 3.1.3.- (26 Jun 1999) |
| glucose-6-dehydrogenase deficiency | <biochemistry> An inherited condition that results in a deficiency in glucose-6-phosphate dehydrogenase. Particular drugs (sulphonamides) can exacerbate this problem. The result is haemolytic anaemia. (27 Sep 1997) |
| glucose-6-phosphatase | <enzyme> An enzyme that catalyses the conversion of d-glucose-6-phosphate and water to d-glucose and orthophosphate. This enzyme is deficient in glycogen storage disease Ia. Chemical name: D-Glucose-6-phosphate phosphohydrolase Registry number: EC 3.1.3.9 (12 Dec 1998) |
| glucose-6-phosphatase hepatorenal glycogenosis | Glycogenosis due to glucose-6-phosphatase deficiency, resulting in accumulation of excessive amounts of glycogen of normal chemical structure, particularly in liver and kidney. Synonym: Gierke's disease, glucose-6-phosphatase hepatorenal glycogenosis, von Gierke's disease. (05 Mar 2000) |
| glucose-6-phosphate | <biochemistry> Glucose 6-phosphate is a phosphomonoester of glucose that is formed by transfer of phosphate from ATP, catalysed by the enzyme hexokinase. It is an intermediate both of the glycolytic pathway (next converted to fructose 6 phosphate) and of the NADPH generating pentose phosphate pathway, formed from glucose via hexokinase. However it is not strictly a glycolytic intermediate and it is readily converted to glycogen or oxidized to NADPH. (10 Oct 1997) |
| d-glucose-6-phosphate | A key intermediate in glycolysis, glycogenolysis, pentose phosphate shunt, etc.; elevated levels inhibit brain hexokinase and glycolysis. Synonym: Robison ester, Robison-Embden ester. (05 Mar 2000) |
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| dolichol phosphate glucose-dolichol diphosphate oligosaccharide glucosyltransferase | <enzyme> Can also use dolichol-p-galactose as donor Registry number: EC 2.4.1.- Synonym: dolichol-p-glucose-dolichol-p-p-oligosaccharide glucosyltransferase, dolichol-pp-oligosaccharide glucosyltransferase (ii), dolichol-p-p-oligosaccharide glucosyltransferase (i), dol-p-p-oligosaccharide glycosyltransferase, dppo-glucosyltransferase, dolichyl-p-glucose-man(9)(glcnac)2-pp-dolichol glucosyltransferase (26 Jun 1999) |
| dTDP-D-glucose synthase | <enzyme> Catalyses the formation of dtdp-d-glucose by using glucose-1-phosphate and dttp as substrates; rfba is a dual function enzyme; rfba is also a phosphomannose isomerase-guanosine diphosphomannose pyrophosphorylase; see record of pmi-GMP Registry number: EC 2.7.7.- Synonym: rfba protein, deltatdp-glucose synthase, tyla1 gene product, rfba gene product (26 Jun 1999) |
| impaired glucose tolerance | Blood glucose (sugar) levels higher than normal but not high enough to be called diabetes. People with impaired glucose tolerance may or may not develop diabetes. Other names (no longer used) for impaired glucose tolerance are borderline, subclinical, chemical, or latent diabetes. (30 Mar 1998) |
| test, glucose tolerance | After fasting, a specific amount (100 grams) of glucose is given by mouth, and the blood levels of this sugar are measured every hour. Normally, the blood glucose should return to normal within 2 to 2 1/2 hours. The gtt is considered a classic test of carbohydrate metabolism. It is much used in the diagnosis of diabetes. The gtt depends on a number of factors including the ability of the intestine to absorb glucose, the power of the liver to take up and store glucose, the capacity of the pancreas to produce insulin, and the amount of active insulin. (12 Dec 1998) |
| UDP-glucose cyanidin-3-rhamnosyl-(1-6)-glucoside-5-O- glucosyltransferase | <enzyme> Chemical name: glucosyltransferase, uridine diphosphoglucose-cyanidin 3-rhamnosylglucoside 5-o- Registry number: EC 2.4.1.- (26 Jun 1999) |
| UDP-glucose diosgenin-tigogenin glucosyltransferase | <enzyme> Catalyses the glycosylation of steroid saponins; from leaves of eggplant, solanum melongena Registry number: EC 2.4.1.- Synonym: udpglc-diosgenin-tigogenin glc-tase, udpglc-dt-glctase, diosgenin glucosyltransferase (26 Jun 1999) |
| UDPglucose-glycogen glucose 1-phosphotransferase | <enzyme> Catalyses the transfer of glucose 1-phosphate onto c-6 of glucose residues in glycogen to form a phosphodiester Registry number: EC 2.7.8.- Synonym: ugg-glcptase (26 Jun 1999) |
| UDPglucose-glycoprotein glucose-1-phosphotransferase | <enzyme> From embryonic chicken neural retina; glucose is linked by phosphodiester bonds to mannose of a cell surface glycoprotein; catalyses the transfer of alpha glc-1-p from udp-glc to mannose residues on acceptor glycoproteins Registry number: EC 2.7.8.19 Synonym: glcptase, glc-phosphotransferase (26 Jun 1999) |
| UDP-glucose-isoflavone 7-O-glucosyltransferase | <enzyme> From c. Arietinum roots; catalyses the 7-o-glucosylation of endogenous isoflavone constituents with udp-glc as glucose donor Registry number: EC 2.4.1.- Synonym: udp-gigtransferase (26 Jun 1999) |
| UDP-glucose LOS-beta-1,4-glucosyltransferase | <enzyme> Required for biosynthesis of lipooligosaccharide inner core extension in neisseria meningitidis; genbank u58765 Registry number: EC 2.4.1.- Synonym: lgtf gene product (26 Jun 1999) |
| UDP-glucose-N-acetylglucosaminyl pyrophosphorylundecaprenol glucosyltransferase | <enzyme> From bacillus coagulans; catalyses the conversion of glcnac-pp-undecaprenol into glc(beta1-4)glcnac-pp-undecaprenol in the presence of udp-glucose Registry number: EC 2.4.1.- Synonym: udpglucose-glcnac-pp-undecaprenol glucosyltransferase, uggppugtransferase (26 Jun 1999) |
| UDP-glucose solasodine glucosyltransferase | <enzyme> Involved in the glycosylation of solasodine; from leaves of eggplant, solanum melongena Registry number: EC 2.4.1.- Synonym: udpglc solasodine glctase (26 Jun 1999) |
| UDP-glucose spirostanol glucosyltransferase | <enzyme> Involved in the glycosylation of spirostanol; from leaves of eggplant, solanum melongena Registry number: EC 2.4.1.- Synonym: udpglc spirostanol glctase (26 Jun 1999) |
| fasting blood glucose | <endocrinology, investigation> A method for finding out how much glucose (sugar) is in the blood. The test can show if a person has diabetes. A blood sample is taken in a lab or doctor's office. The test is usually done in the morning before the person has eaten. The normal, nondiabetic range for blood glucose is from 70 to 110 mg/dl, depending on the type of blood being tested. If the level is over 140 mg/dl, it usually means the person has diabetes (except for newborns and some pregnant women). (09 Oct 1997) |