ID 3.2.1.152 DE mannosylglycoprotein endo-beta-mannosidase. AN endo-beta-mannosidase. CA Hydrolysis of the alpha-D-mannosyl-(1->6)-beta-D-mannosyl-(1->4)-N- CA acetyl-beta-D-glucosaminyl-(1->4)-N-acetyl-beta-D-glucosaminyl sequence CA of glycoprotein to alpha-D-mannosyl-(1->6)-D-mannose and N-acetyl-beta-D- CA glucosaminyl-(1->4)-N-acetyl-beta-D-glucosaminyl sequences. CC -!- The substrate group is a substituent on N-4 of an asparagine residue CC in the glycoprotein. CC -!- The mannose residue at the non-reducing end of the sequence may carry CC further alpha-D-mannosyl groups on O-3 or O-6, but such a substituent CC on O-3 of the beta-D-mannosyl group prevents the action of the CC enzyme. CC -!- The enzyme was obtained from the lily, Lilium longiflorum. DR Q75W54, EBM_ARATH ; Q5H7P5, EBM_LILLO ; //