Galactose, sometimes abbreviated Gal, is a monosaccharide sugar that is about as sweet as glucose, and about 65% as sweet as sucrose. It is an aldohexose and a C-4 epimer of glucose. A galactose molecule linked with a glucose molecule forms a lactose molecule.
Galactokinase is an enzyme (phosphotransferase) that facilitates the phosphorylation of α-D-galactose to galactose 1-phosphate at the expense of one molecule of ATP. Galactokinase catalyzes the second step of the Leloir pathway, a metabolic pathway found in most organisms for the catabolism of α-D-galactose to glucose 1-phosphate. First isolated from mammalian liver, galactokinase has been studied extensively in yeast, archaea, plants, and humans.
Galactose-1-phosphate uridylyltransferase is an enzyme responsible for converting ingested galactose to glucose.
Glycosyltransferases are enzymes that establish natural glycosidic linkages. They catalyze the transfer of saccharide moieties from an activated nucleotide sugar to a nucleophilic glycosyl acceptor molecule, the nucleophile of which can be oxygen- carbon-, nitrogen-, or sulfur-based.
In enzymology, a galactose 1-dehydrogenase (NADP+) (EC 1.1.1.120) is an enzyme that catalyzes the chemical reaction
In enzymology, a CDP-paratose 2-epimerase is an enzyme that catalyzes the chemical reaction
Nucleotide sugars are the activated forms of monosaccharides. Nucleotide sugars act as glycosyl donors in glycosylation reactions. Those reactions are catalyzed by a group of enzymes called glycosyltransferases.
In enzymology, a cyanidin 3-O-rutinoside 5-O-glucosyltransferase is an enzyme that catalyzes the chemical reaction
In enzymology, a dolichyl-phosphate beta-D-mannosyltransferase is an enzyme that catalyzes the chemical reaction
In enzymology, a dolichyl-phosphate-mannose-protein mannosyltransferase is an enzyme that catalyzes the chemical reaction
In enzymology, a flavanone 7-O-glucoside 2"-O-beta-L-rhamnosyltransferase is an enzyme that catalyzes the chemical reaction
In enzymology, a flavonol-3-O-glucoside L-rhamnosyltransferase is an enzyme that catalyzes the chemical reaction
In enzymology, a fucosylgalactoside 3-alpha-galactosyltransferase is an enzyme that catalyzes the chemical reaction
In enzymology, a glycoprotein 2-beta-D-xylosyltransferase (EC 2.4.2.38) is an enzyme that catalyzes the chemical reaction
In enzymology, a glycoprotein 3-alpha-L-fucosyltransferase (EC 2.4.1.214) is an enzyme that catalyzes the chemical reaction
In enzymology, a glycoprotein 6-alpha-L-fucosyltransferase (EC 2.4.1.68) is an enzyme that catalyzes the chemical reaction
In enzymology, an undecaprenyl-phosphate mannosyltransferase is an enzyme that catalyzes the chemical reaction
In enzymology, an UTP—hexose-1-phosphate uridylyltransferase is an enzyme that catalyzes the chemical reaction
CDP-abequose synthase (EC 1.1.1.341, rfbJ (gene)) is an enzyme with systematic name CDP-alpha-D-abequose:NADP+ 4-oxidoreductase. This enzyme catalyses the following chemical reaction
Rhamnogalacturonan rhamnohydrolase is an enzyme with systematic name rhamnogalacturonan oligosaccharide alpha-L-Rha-(1->4)-alpha-D-GalA rhamnohydrolase. This enzyme catalyses the following chemical reaction
