Alpha-1,6-glucosidases, pullulanase-type (IPR011839)

Short name: Pullul_strch

Overlapping homologous superfamilies

Domain relationships



Members of this protein family include secreted (or membrane-anchored) pullulanases of Gram-negative bacteria and pullulanase-type starch debranching enzymes of plants. Both enzymes hydrolyze alpha-1,6 glycosidic linkages. Pullulan is an unusual, industrially important polysaccharide in which short alpha-1,4 chains (maltotriose) are connected in alpha-1,6 linkages. Enzymes that cleave alpha-1,6 linkages in pullulan and release maltotriose are called pullulanases although pullulan itself may not be the natural substrate. This family is closely homologous to, but architecturally different from the pullulanases of Gram-positive bacteria (IPR011838).

GO terms

Biological Process

GO:0005975 carbohydrate metabolic process

Molecular Function

GO:0051060 pullulanase activity

Cellular Component

No terms assigned in this category.

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.