glycosyltransferase, MSMEG_0565 family. A conserved gene cluster found sporadically from Actinobacteria to Proteobacteria to Cyanobacteria features a radical SAM protein, an N-acetyltransferase, an oxidoreductase, and two additional proteins whose functional classes are unclear. The metabolic role of the cluster is probably biosynthetic. This glycosyltransferase, named from member MSMEG_0565 from Mycobacterium smegmatis, occurs in most but not all instances of the cluster [Unknown function, Enzymes of unknown specificity].

This family is most closely related to the GT1 family of glycosyltransferases. The yeast gene ALG1 has been shown to function as a mannosyltransferase that catalyzes the formation of dolichol pyrophosphate (Dol-PP)-GlcNAc2Man from GDP-Man and Dol-PP-Glc-NAc2, and participates in the formation of the lipid-linked precursor oligosaccharide for N-glycosylation. In humans ALG1 has been associated with the congenital disorders of glycosylation (CDG) designated as subtype CDG-Ik.

transferase, transferring glycosyl groups