3.2.1.B1	hydrolysis of 1,3-beta-D-galactosidic linkages in agarose, giving the octamer as the predominant product	enzyme has a large substrate binding cleft that accomodates 12 sugar units, with 8 sugar units toward the reducing end spanning subsites +1 to +8 and 4 sugar units toward the non-reducing end spanning subsites -4 to -1. Enzyme hydrolyzes the glycosidic bond with inversion of anomeric configuration	680864