The C-terminal domain of HUGT1-like is highly homologous to the GT 8 family.
C-terminal domain of glycoprotein glucosyltransferase (UGT). UGT is a large glycoprotein whose C-terminus contains the catalytic activity. This catalytic C-terminal domain is highly homologous to Glycosyltransferase Family 8 (GT 8) and contains the DXD motif that coordinates donor sugar binding, characteristic for Family 8 glycosyltransferases. GT 8 proteins are retaining enzymes based on the relative anomeric stereochemistry of the substrate and product in the reaction catalyzed. The non-catalytic N-terminal portion of the human UTG1 (HUGT1) has been shown to monitor the protein folding status and activate its glucosyltransferase activity.