CATH Classification

Domain Context

CATH Clusters

Superfamily Immunoglobulins
Functional Family 1,4-alpha-glucan-branching enzyme, chloroplastic/amyloplastic

Enzyme Information

2.4.1.18
1,4-alpha-glucan branching enzyme.
based on mapping to UniProt Q01401
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)

Q01401
GLGB_ORYSJ
Oryza sativa Japonica Group
1,4-alpha-glucan-branching enzyme, chloroplastic/amyloplastic

PDB Structure

PDB 3VU2
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Crystal structure of the rice branching enzyme I (BEI) in complex with maltopentaose.
Chaen, K., Noguchi, J., Omori, T., Kakuta, Y., Kimura, M.
Biochem.Biophys.Res.Commun.
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