alpha-D-mannosyl-(1->4)-[3-O-methyl-alpha-D-mannosyl-(1->4)]n-3-O-methyl-alpha-D-mannose;
GDP [CPD:C00035]
Comment
The enzyme, present in mycobacterial species that produce a 3-O-methylmannose polysaccharide (MMP), is involved in recycling and biosynthesis of the polymer. The enzyme has the highest activity with 3-O-methylated mannosides with 4-6 residues. The residue at the reducing end of the substrate is often dimethylated, with the second methyl group attached at the O-1 position.
