ID 3.2.1.200 DE exo-chitinase (non-reducing end). CA Hydrolysis of N,N'-diacetylchitobiose from the non-reducing end of chitin CA and chitodextrins. CC -!- The enzyme hydrolyzes the second glycosidic (1->4) linkage from non- CC reducing ends of chitin and chitodextrin molecules, liberating CC N,N'-diacetylchitobiose disaccharides. cf. EC 3.2.1.201. DR O81862, CHIC_ARATH ; //