CATH Classification
| Level | CATH Code | Description |
|---|---|---|
|
3 | Alpha Beta |
|
3.20 | Alpha-Beta Barrel |
|
3.20.20 | TIM Barrel |
|
3.20.20.80 | Glycosidases |
Domain Context
CATH Clusters
| Superfamily | Glycosidases |
| Functional Family |
Enzyme Information
| 3.2.1.97 |
Endo-alpha-N-acetylgalactosaminidase.
based on mapping to UniProt Q2MGH6
Beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl-L- serine/L-threonine-[protein] + H(2)O = beta-D-galactosyl-(1->3)-N-acetyl- alpha-D-galactosamine + L-serine/L-threonine-[protein].
-!- The enzyme catalyzes the liberation of Gal-(1->3)-beta-GalNAc alpha- linked to serine or threonine residues of mucin-type glycoproteins. -!- EngBF from Bifidobacterium longum specifically acts on core 1-type O-glycan to release the disaccharide Gal-(1->3)-beta-GalNAc. -!- The enzymes from Clostridium perfringens, Enterococcus faecalis, Propionibacterium acnes and Alcaligenes faecalis show broader specificity (e.g. release of the core 2 trisaccharide Gal-(1->3)- beta-(GlcNAc-(1->6)-beta)-GalNAc or the core 3 disaccharide GlcNAc- (1->3)-beta-GalNAc). -!- The enzyme may play an important role in the degradation and utilization of mucins having core 1 O-glycan. -!- Formerly EC 3.2.1.110.
|
UniProtKB Entries (1)
| Q2MGH6 |
GH101_STRPN
Streptococcus pneumoniae TIGR4
Endo-alpha-N-acetylgalactosaminidase
|
PDB Structure
| PDB | 5A57 |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | |
| Primary Citation |
Structural Analysis of a Family 101 Glycoside Hydrolase in Complex with Carbohydrates Reveals Insights Into its Mechanism.
J.Biol.Chem.
|
