CATH Classification

Domain Context

CATH Clusters

Superfamily Glycosidases
Functional Family 1,4-alpha-glucan branching enzyme GlgB

Enzyme Information

2.4.1.18
1,4-alpha-glucan branching enzyme.
based on mapping to UniProt A7ZSW5
Transfers a segment of a (1->4)-alpha-D-glucan chain to a primary hydroxy group in a similar glucan chain.
-!- Converts amylose into amylopectin. -!- The description (official name) requires a qualification depending on the product, glycogen or amylopectin, e.g. glycogen branching enzyme, amylopectin branching enzyme. -!- The latter has frequently been termed Q-enzyme.

UniProtKB Entries (1)

A7ZSW5
GLGB_ECO24
Escherichia coli O139:H28 str. E24377A
1,4-alpha-glucan branching enzyme GlgB

PDB Structure

PDB 5E70
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal structures of Escherichia coli branching enzyme in complex with cyclodextrins.
Feng, L., Fawaz, R., Hovde, S., Sheng, F., Nosrati, M., Geiger, J.H.
Acta Crystallogr D Struct Biol