ID 3.2.1.221 DE MMP endo-(1,4)-3-O-methyl-alpha-D-mannosidase. AN MMP alpha-(1->4)-endomannosidase. CA Endohydrolysis of 3-O-methyl-alpha-D-mannosyl-(1->4)-3-O-methyl-D-mannose CA linkages within (1,4)-3-O-methyl-alpha-D-mannnan substrates. CC -!- The enzyme, present in mycobacterial species that produce 3-O- CC methylmannose polysaccharide (MMP), is involved in recycling and CC biosynthesis of the polymer. CC -!- The enzyme has been shown to cleave substrates in the range of 11-14 CC mannose residues. //