| gamma-glutamylhistamine synthetase | <enzyme> Incorporates histamine or other amines into peptide linkage with glutamate; from aplysia ganglia Registry number: EC 6.3.2.- Synonym: gamma-gha synthetase, gamma-glutamyl amine synthetase, gamma-glutamyl octopamine synthetase, gamma-glutamyl tyramine synthetase (26 Jun 1999) |
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| GDPfucose synthetase | <chemical> Gdpmannose is converted to GDP-4-keto-6-deoxymannose by EC 4.2.1.47; the latter is then reduced by NADPH to GDPfucose Chemical name: synthetase, guanosine diphosphofucose (26 Jun 1999) |
| PAPS synthetase | <chemical> Consists of ATP sulfurylase (EC 2.7.7.4) and adenylylsulfate kinase (EC 2.7.1.25) Synonym: phosphoadenosine phosphosulfate synthetase (26 Jun 1999) |
| mannan synthetase | <enzyme> From third internode of aetiolated pea seedlings; synthesises beta-1,4-mannan from GDP-d-mannose Registry number: EC 2.4.1.- Synonym: beta-1,4-mannan synthase (26 Jun 1999) |
| casbene synthetase | <enzyme> From castor bean (ricinus communis); catalyses the cyclization of geranylgeranylpyrophosphate to form the macrocyclic diterpene casbene Registry number: EC 4.6.1.7 Synonym: casbene synthase (26 Jun 1999) |
| glutamine synthetase | <enzyme> An enzyme which makes the amino acid glutamine by attaching a molecule of ammonia (NH3) to the amino acid glutamic acid. (09 Oct 1997) |
| glutaminyl-tRNA synthetase | <enzyme> Pi read RNA, soluble (70-75), but had to be deleted since no longer an active mh Registry number: EC 6.1.1.18 Synonym: glnrs (26 Jun 1999) |
| glutathione synthetase | <enzyme> An enzyme that catalyses the formation of glutathione, ADP, and orthophosphate from gamma-glutamylcysteine, ATP, and glycine; a deficiency will lead to metabolic acidosis and progressive brain dysfunction. (05 Mar 2000) |
| glutathione synthetase deficiency | An inborn error of metabolism associated with massive urinary excretion of 5-oxyproline, elevated levels of 5-oxyproline in the blood and cerebrospinal fluid, severe metabolic acidosis, tendency toward haemolysis, and defective central nervous systems function. Glutathione synthetase deficiency has been reported as a generalised condition or with a deficiency restricted to erythrocytes. (05 Mar 2000) |
| glutathionylspermidine synthetase | <enzyme> From crithidia fasciculata; catalyses the synthesis of n(1)-and n(8)-glutathionylspermidine from ATP/mg, glutathione and spermidine; mw 90 kD; different from trypanothione synthetase Registry number: EC 6.3.1.- Synonym: gsh-sp synthetase (26 Jun 1999) |
| glycerophosphorylcholine synthetase | <enzyme> Forms sn-glycerol-3-phosphorylcholine from cdpcholine and glycerol-3-phosphate Registry number: EC 2.6.99.- Synonym: cdp-choline-3-glycerophosphate cholinetransferase, cdp-gpccholinetransferase (26 Jun 1999) |
| glycogen synthetase | <enzyme> An enzyme which makes amylose out of glucose molecules (a type of sugar) and attaches them to glycogen (a type of polysaccharide). (09 Oct 1997) |
| glyoxylate synthetase | <enzyme> Catalyses the condensation of two formate molecules into glyoxylate; a tetramer with mw of 160 kD with a subunit mw of 40 kD; isolated from green potato-tuber chloroplasts Registry number: EC 4.1.3.- (26 Jun 1999) |
| GMP synthetase | <enzyme> Consider also GMP synthetase (glutamine hydrolysing) EC 6.3.5.2 Registry number: EC 6.3.4.1 (26 Jun 1999) |
| peptide synthetase | Any enzyme that catalyses the synthesis of peptide bonds, with the hydrolysis of a nucleoside triphosphate. (05 Mar 2000) |