Isoamylase (Glycogen α-1,6-glucanohydrolase) catalyzes the hydrolysis of α-1,6-glycosidic linkages in glycogen, amylopectin and α/β-limit dextrins[1].
References
[1] Li Y, et al. Engineering of isoamylase: improvement of protein stability and catalytic efficiency through semi-rational design. J Ind Microbiol Biotechnol. 2016 Jan;43(1):3-12. DOI:10.1007/s10295-015-1708-4