Now, in this particular case, because this is glucose, this molecule is known as urine and diphosphate glucose. Now, once we form that bond, this is the bond that is formed, showed in green, that's the glycocitic bond. And of course, instead of having the sugar here, we can also have a protein or we can have a lipid. In either case, we form a glycocitic bond as a result of the action of glycostal transferases. So glycosyl transferases use an activated sugar, usually a sugar nucleotide, such as in this case, Eurogene diphosphate glucose, to basically catalyze the formation of that glycosytic bond. Now, just like any other group of enzymes, glycosylatransphrases are highly specific molecules.