Asparagine Linked Glycosylation 1 Like Protein (ALG1L)

ALG1L belongs to the glycosyltransferase 1 family. Glycosyltransferases are enzymes (EC 2.4) that act as a catalyst for the transfer of a monosaccharide unit from an activated nucleotide sugar to an Glycosyl acceptor molecule, usually an alcohol.

The result of glycosyl transfer can be a carbohydrate, glycoside, oligosaccharide, or a polysaccharide. Some glycosyltransferases catalyse transfer to inorganic phosphate or water. Glycosyl transfer can also occur to protein residues, usually to tyrosine, serine, or threonine to give O-linked glycoproteins, or to asparagine to give N-linked glycoproteins. Mannosyl groups may be transferred to tryptophan to generate C-mannosyl tryptophan, which is relatively abundant in eukaryotes. Transferases may also use lipids as an acceptor, forming glycolipids, or even lipid-linked sugar phosphate donors, such as dolichol phosphates.