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 | Beta-galactosidase |
Enzyme Information
| 3.2.1.23 |
Beta-galactosidase.
based on mapping to UniProt P00722
Hydrolysis of terminal non-reducing beta-D-galactose residues in beta-D- galactosides.
-!- Some enzymes in this group hydrolyze alpha-L-arabinosides; some animal enzymes also hydrolyze beta-D-fucosides and beta-D-glucosides (cf. EC 3.2.1.108).
|
UniProtKB Entries (1)
| P00722 |
BGAL_ECOLI
Escherichia coli K-12
Beta-galactosidase
|
PDB Structure
| PDB | 3IAQ |
| External Links | |
| Method | X-RAY DIFFRACTION |
| Organism | |
| Primary Citation |
Studies of Glu-416 variants of beta-galactosidase (E. coli) show that the active site Mg(2+) is not important for structure and indicate that the main role of Mg (2+) is to mediate optimization of active site chemistry
Protein J.
|