CATH Classification

Domain Context

CATH Clusters

Superfamily Glycosidases
Functional Family

Enzyme Information

3.2.1.1
Alpha-amylase.
based on mapping to UniProt P21543
Endohydrolysis of (1->4)-alpha-D-glucosidic linkages in polysaccharides containing three or more (1->4)-alpha-linked D-glucose units.
-!- Acts on starch, glycogen and related polysaccharides and oligosaccharides in a random manner; reducing groups are liberated in the alpha-configuration. -!- The term 'alpha' relates to the initial anomeric configuration of the free sugar group released and not to the configuration of the linkage hydrolyzed.
3.2.1.2
Beta-amylase.
based on mapping to UniProt P21543
Hydrolysis of (1->4)-alpha-D-glucosidic linkages in polysaccharides so as to remove successive maltose units from the non-reducing ends of the chains.
-!- Acts on starch, glycogen and related polysaccharides and oligosaccharides producing beta-maltose by an inversion.

UniProtKB Entries (1)

P21543
AMYB_PAEPO
Paenibacillus polymyxa
Beta/alpha-amylase

PDB Structure

PDB 3VOC
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structural analysis by X-ray crystallography and small-angle scattering of the multi-domain beta-amylase from Paenibacillus polymyxa
Nishimura, S., Fujioka, T., Takahashi, R., Nakaniwa, T., Fukada, H., Inui, T., Tada, T., Kawaguchi, T., Sumitani, J.
To be Published